diff --git a/src/DRAMPower/DRAMPower/data/energy.cpp b/src/DRAMPower/DRAMPower/data/energy.cpp
index b3a43263..0fba2620 100644
--- a/src/DRAMPower/DRAMPower/data/energy.cpp
+++ b/src/DRAMPower/DRAMPower/data/energy.cpp
@@ -24,7 +24,7 @@ double energy_info_t::total() const
     return total;
 };
 
-void energy_info_t::to_json(nlohmann::json &j) const
+void energy_info_t::to_json(json_t &j) const
 {
     j = nlohmann::json{
         {"ACT", E_act},
@@ -80,7 +80,7 @@ double DRAMPower::energy_t::total() const
     return total;
 }
 
-void DRAMPower::interface_energy_info_t::to_json(nlohmann::json &j) const
+void DRAMPower::interface_energy_info_t::to_json(json_t &j) const
 {
     j = nlohmann::json{};
     j["controller"]["dynamicEnergy"] = controller.dynamicEnergy;
@@ -89,7 +89,7 @@ void DRAMPower::interface_energy_info_t::to_json(nlohmann::json &j) const
     j["dram"]["staticEnergy"] = dram.staticEnergy;
 }
 
-void DRAMPower::energy_t::to_json(nlohmann::json &j) const
+void DRAMPower::energy_t::to_json(json_t &j) const
 {
     j = nlohmann::json{
         {"E_bg_act_shared", E_bg_act_shared},
@@ -103,7 +103,7 @@ void DRAMPower::energy_t::to_json(nlohmann::json &j) const
     auto energy_arr = nlohmann::json::array();
     for (const energy_info_t& energy : bank_energy)
     {
-        nlohmann::json bank_energy_json;
+        json_t bank_energy_json;
         energy.to_json(bank_energy_json);
         energy_arr.push_back(bank_energy_json);
     }
diff --git a/src/DRAMPower/DRAMPower/data/energy.h b/src/DRAMPower/DRAMPower/data/energy.h
index eb268ebd..6aa357a6 100644
--- a/src/DRAMPower/DRAMPower/data/energy.h
+++ b/src/DRAMPower/DRAMPower/data/energy.h
@@ -5,7 +5,8 @@
 
 #include <vector>
 #include <iostream>
-#include <nlohmann/json.hpp>
+
+#include <DRAMUtils/util/json.h>
 
 namespace DRAMPower {
 
@@ -29,7 +30,7 @@ struct energy_info_t
 	double E_ref_2B = 0.0;
 
 	double total() const;
-	void to_json(nlohmann::json &j) const;
+	void to_json(json_t &j) const;
 	energy_info_t& operator+=(const energy_info_t & other);
 	// Operator << for std::cout
 	friend std::ostream & operator<<(std::ostream & os, const energy_info_t & ei)
@@ -57,7 +58,7 @@ struct energy_t
 {
 	std::vector<energy_info_t> bank_energy;
 	energy_info_t total_energy(); // TODO rename
-	void to_json(nlohmann::json &j) const;
+	void to_json(json_t &j) const;
 	constexpr inline const char * const get_Bank_energy_keyword() const
 	{
 		return "BankEnergy";
@@ -137,7 +138,7 @@ struct interface_energy_info_t
         os << "Total: " << e.total() << std::endl;
     	return os;
 	}
-	void to_json(nlohmann::json &j) const;
+	void to_json(json_t &j) const;
 };
 
 };
diff --git a/src/DRAMPower/DRAMPower/memspec/MemSpec.cpp b/src/DRAMPower/DRAMPower/memspec/MemSpec.cpp
index 9ddef668..edcfd407 100644
--- a/src/DRAMPower/DRAMPower/memspec/MemSpec.cpp
+++ b/src/DRAMPower/DRAMPower/memspec/MemSpec.cpp
@@ -38,6 +38,6 @@
 
 
 using namespace DRAMPower;
-using json = nlohmann::json;
+using json_t = nlohmann::json;
 
 
diff --git a/src/DRAMPower/DRAMPower/memspec/MemSpec.h b/src/DRAMPower/DRAMPower/memspec/MemSpec.h
index 009f6c15..97c112c6 100644
--- a/src/DRAMPower/DRAMPower/memspec/MemSpec.h
+++ b/src/DRAMPower/DRAMPower/memspec/MemSpec.h
@@ -42,14 +42,13 @@
 
 #include <DRAMPower/command/CmdType.h>
 
-#include <nlohmann/json.hpp>
+#include <DRAMUtils/util/json.h>
 #include <DRAMUtils/memspec/MemSpec.h>
 
 #include <vector>
 #include <algorithm>
 
 
-using json = nlohmann::json;
 namespace DRAMPower {
 
 struct MemSpecContainer
diff --git a/src/DRAMPower/DRAMPower/memspec/MemSpecDDR4.cpp b/src/DRAMPower/DRAMPower/memspec/MemSpecDDR4.cpp
index 0165bd7f..46c0e8cb 100644
--- a/src/DRAMPower/DRAMPower/memspec/MemSpecDDR4.cpp
+++ b/src/DRAMPower/DRAMPower/memspec/MemSpecDDR4.cpp
@@ -37,7 +37,7 @@
 
 #include "MemSpecDDR4.h"
 using namespace DRAMPower;
-using json = nlohmann::json;
+using json_t = nlohmann::json;
     
 
 MemSpecDDR4::MemSpecDDR4(const DRAMUtils::MemSpec::MemSpecDDR4 &memspec)
diff --git a/src/DRAMPower/DRAMPower/memspec/MemSpecDDR4.h b/src/DRAMPower/DRAMPower/memspec/MemSpecDDR4.h
index d8c1fe67..cecb75a4 100644
--- a/src/DRAMPower/DRAMPower/memspec/MemSpecDDR4.h
+++ b/src/DRAMPower/DRAMPower/memspec/MemSpecDDR4.h
@@ -39,10 +39,12 @@
 #define DRAMPOWER_MEMSPEC_MEMSPECDDR4_H
 
 #include "MemSpec.h"
+
 #include <DRAMUtils/memspec/standards/MemSpecDDR4.h>
-#include <nlohmann/json.hpp>
 
-using json = nlohmann::json;
+#include <DRAMUtils/util/json.h>
+
+
 namespace DRAMPower {
 
 class MemSpecDDR4 final : public MemSpec<DRAMUtils::MemSpec::MemSpecDDR4>
@@ -59,8 +61,8 @@ class MemSpecDDR4 final : public MemSpec<DRAMUtils::MemSpec::MemSpecDDR4>
     
 	MemSpecDDR4(const DRAMUtils::MemSpec::MemSpecDDR4 &memspec);
 
-	MemSpecDDR4(json &data) = delete;
-	MemSpecDDR4(const json &data) = delete;
+	MemSpecDDR4(json_t &data) = delete;
+	MemSpecDDR4(const json_t &data) = delete;
 
 	~MemSpecDDR4() = default;
 
diff --git a/src/DRAMPower/DRAMPower/memspec/MemSpecDDR5.cpp b/src/DRAMPower/DRAMPower/memspec/MemSpecDDR5.cpp
index 8eb7878d..51f46273 100644
--- a/src/DRAMPower/DRAMPower/memspec/MemSpecDDR5.cpp
+++ b/src/DRAMPower/DRAMPower/memspec/MemSpecDDR5.cpp
@@ -1,6 +1,6 @@
 #include "MemSpecDDR5.h"
 using namespace DRAMPower;
-using json = nlohmann::json;
+using json_t = nlohmann::json;
 
 
 MemSpecDDR5::MemSpecDDR5(const DRAMUtils::MemSpec::MemSpecDDR5 &memspec)
diff --git a/src/DRAMPower/DRAMPower/memspec/MemSpecDDR5.h b/src/DRAMPower/DRAMPower/memspec/MemSpecDDR5.h
index 591e56bb..1b2029ae 100644
--- a/src/DRAMPower/DRAMPower/memspec/MemSpecDDR5.h
+++ b/src/DRAMPower/DRAMPower/memspec/MemSpecDDR5.h
@@ -2,6 +2,7 @@
 #define DRAMPOWER_MEMSPEC_MEMSPECDDR5_H
 
 #include "MemSpec.h"
+
 #include <DRAMUtils/memspec/standards/MemSpecDDR5.h>
 
 
@@ -20,8 +21,8 @@ namespace DRAMPower {
 
         MemSpecDDR5(const DRAMUtils::MemSpec::MemSpecDDR5 &memspec);
 
-        MemSpecDDR5(json &data) = delete;
-        MemSpecDDR5(const json &data) = delete;
+        MemSpecDDR5(json_t &data) = delete;
+        MemSpecDDR5(const json_t &data) = delete;
 
         ~MemSpecDDR5() = default;
 
diff --git a/src/DRAMPower/DRAMPower/memspec/MemSpecLPDDR4.cpp b/src/DRAMPower/DRAMPower/memspec/MemSpecLPDDR4.cpp
index d9dcffd7..b56ca160 100644
--- a/src/DRAMPower/DRAMPower/memspec/MemSpecLPDDR4.cpp
+++ b/src/DRAMPower/DRAMPower/memspec/MemSpecLPDDR4.cpp
@@ -1,6 +1,6 @@
 #include "MemSpecLPDDR4.h"
 using namespace DRAMPower;
-using json = nlohmann::json;
+using json_t = nlohmann::json;
 
 
 MemSpecLPDDR4::MemSpecLPDDR4(const DRAMUtils::MemSpec::MemSpecLPDDR4 &memspec)
diff --git a/src/DRAMPower/DRAMPower/memspec/MemSpecLPDDR4.h b/src/DRAMPower/DRAMPower/memspec/MemSpecLPDDR4.h
index 9742272c..0dd265d1 100644
--- a/src/DRAMPower/DRAMPower/memspec/MemSpecLPDDR4.h
+++ b/src/DRAMPower/DRAMPower/memspec/MemSpecLPDDR4.h
@@ -2,6 +2,7 @@
 #define DRAMPOWER_MEMSPEC_MEMSPECLPDDR4_H
 
 #include "MemSpec.h"
+
 #include <DRAMUtils/memspec/standards/MemSpecLPDDR4.h>
 
 
@@ -21,8 +22,8 @@ class MemSpecLPDDR4 final : public MemSpec<DRAMUtils::MemSpec::MemSpecLPDDR4>
 	
 	MemSpecLPDDR4(const DRAMUtils::MemSpec::MemSpecLPDDR4 &memspec);
 	
-	MemSpecLPDDR4(json &data) = delete;
-	MemSpecLPDDR4(const json &data) = delete;
+	MemSpecLPDDR4(json_t &data) = delete;
+	MemSpecLPDDR4(const json_t &data) = delete;
 
 	~MemSpecLPDDR4() = default;
 	uint64_t timeToCompletion(CmdType type) override;
diff --git a/src/DRAMPower/DRAMPower/memspec/MemSpecLPDDR5.cpp b/src/DRAMPower/DRAMPower/memspec/MemSpecLPDDR5.cpp
index 6c7c6cc9..e63e79ec 100644
--- a/src/DRAMPower/DRAMPower/memspec/MemSpecLPDDR5.cpp
+++ b/src/DRAMPower/DRAMPower/memspec/MemSpecLPDDR5.cpp
@@ -1,7 +1,7 @@
 #include "DRAMPower/memspec/MemSpecLPDDR5.h"
 
 using namespace DRAMPower;
-using json = nlohmann::json;
+using json_t = nlohmann::json;
 
 MemSpecLPDDR5::MemSpecLPDDR5(const DRAMUtils::MemSpec::MemSpecLPDDR5 &memspec)
         : MemSpec(memspec)
@@ -163,3 +163,8 @@ void MemSpecLPDDR5::parseImpedanceSpec(const DRAMUtils::MemSpec::MemSpecLPDDR5 &
     memImpedanceSpec.R_eq_rb = memspec.memimpedancespec.R_eq_rb;
     memImpedanceSpec.R_eq_wb = memspec.memimpedancespec.R_eq_wb;
 }
+
+MemSpecLPDDR5 MemSpecLPDDR5::from_memspec(const DRAMUtils::MemSpec::MemSpecVariant& memSpec)
+{
+    return std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(memSpec.getVariant());
+}
diff --git a/src/DRAMPower/DRAMPower/memspec/MemSpecLPDDR5.h b/src/DRAMPower/DRAMPower/memspec/MemSpecLPDDR5.h
index af43542e..2b769302 100644
--- a/src/DRAMPower/DRAMPower/memspec/MemSpecLPDDR5.h
+++ b/src/DRAMPower/DRAMPower/memspec/MemSpecLPDDR5.h
@@ -25,8 +25,8 @@ namespace DRAMPower {
 
         MemSpecLPDDR5(const DRAMUtils::MemSpec::MemSpecLPDDR5 &memspec);
 	
-        MemSpecLPDDR5(json &data) = delete;
-        MemSpecLPDDR5(const json &data) = delete;
+        MemSpecLPDDR5(json_t &data) = delete;
+        MemSpecLPDDR5(const json_t &data) = delete;
 
         ~MemSpecLPDDR5() = default;
 
@@ -108,6 +108,9 @@ namespace DRAMPower {
 
        private:
         void parseImpedanceSpec(const DRAMUtils::MemSpec::MemSpecLPDDR5 &memspec);
+
+       public:
+        static MemSpecLPDDR5 from_memspec(const DRAMUtils::MemSpec::MemSpecVariant&);
     };
 
 }  // namespace DRAMPower
diff --git a/tests/tests_drampower/base/test_pattern_pre_cycles.cpp b/tests/tests_drampower/base/test_pattern_pre_cycles.cpp
index 5498ef2e..84c8cbbc 100644
--- a/tests/tests_drampower/base/test_pattern_pre_cycles.cpp
+++ b/tests/tests_drampower/base/test_pattern_pre_cycles.cpp
@@ -36,7 +36,7 @@ class DramPowerTest_Pre_Cycles : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR4>(memspeccontainer.memspec.getVariant()));
 		memSpec.numberOfRanks = 1;
diff --git a/tests/tests_drampower/core/DDR4/ddr4_multidevice_tests.cpp b/tests/tests_drampower/core/DDR4/ddr4_multidevice_tests.cpp
index eb452e50..91e58040 100644
--- a/tests/tests_drampower/core/DDR4/ddr4_multidevice_tests.cpp
+++ b/tests/tests_drampower/core/DDR4/ddr4_multidevice_tests.cpp
@@ -63,7 +63,7 @@ class DramPowerTest_DDR4_MultiDevice : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR4>(memspeccontainer.memspec.getVariant()));
         memSpec.numberOfDevices = 5;
diff --git a/tests/tests_drampower/core/DDR4/ddr4_multirank_tests.cpp b/tests/tests_drampower/core/DDR4/ddr4_multirank_tests.cpp
index cbb53980..017c493b 100644
--- a/tests/tests_drampower/core/DDR4/ddr4_multirank_tests.cpp
+++ b/tests/tests_drampower/core/DDR4/ddr4_multirank_tests.cpp
@@ -36,7 +36,7 @@ class DDR4_MultirankTests : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         DRAMPower::MemSpecContainer memspeccontainer = data;
         spec = std::make_unique<MemSpecDDR4>(std::get<DRAMUtils::MemSpec::MemSpecDDR4>(memspeccontainer.memspec.getVariant()));
         spec->numberOfRanks = 2;
diff --git a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_0.cpp b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_0.cpp
index 033c602d..5d761100 100644
--- a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_0.cpp
+++ b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_0.cpp
@@ -35,7 +35,7 @@ class DramPowerTest_DDR4_0 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR4>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_1.cpp b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_1.cpp
index dc29206f..d7c59c45 100644
--- a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_1.cpp
+++ b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_1.cpp
@@ -36,7 +36,7 @@ class DramPowerTest_DDR4_1 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR4>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_10.cpp b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_10.cpp
index 325fa99a..f5970f64 100644
--- a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_10.cpp
+++ b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_10.cpp
@@ -45,7 +45,7 @@ class DramPowerTest_DDR4_10 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR4>(memspeccontainer.memspec.getVariant()));
         memSpec.numberOfRanks = 1;
diff --git a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_11.cpp b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_11.cpp
index 5f3b7dfc..2349075e 100644
--- a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_11.cpp
+++ b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_11.cpp
@@ -58,7 +58,7 @@ class DramPowerTest_DDR4_11 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR4>(memspeccontainer.memspec.getVariant()));
 		memSpec.numberOfRanks = 1;
diff --git a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_12.cpp b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_12.cpp
index de46ce5b..d1aeaac3 100644
--- a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_12.cpp
+++ b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_12.cpp
@@ -44,7 +44,7 @@ class DramPowerTest_DDR4_12 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR4>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_13.cpp b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_13.cpp
index d17adee6..2ae8f99d 100644
--- a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_13.cpp
+++ b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_13.cpp
@@ -38,7 +38,7 @@ class DramPowerTest_DDR4_13 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR4>(memspeccontainer.memspec.getVariant()));
 		memSpec.numberOfRanks = 1;
diff --git a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_14.cpp b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_14.cpp
index 746adc46..dcac4f8d 100644
--- a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_14.cpp
+++ b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_14.cpp
@@ -36,7 +36,7 @@ class DramPowerTest_DDR4_14 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR4>(memspeccontainer.memspec.getVariant()));
 		memSpec.numberOfRanks = 1;
diff --git a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_15.cpp b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_15.cpp
index 5b560e7f..fc82286c 100644
--- a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_15.cpp
+++ b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_15.cpp
@@ -37,7 +37,7 @@ class DramPowerTest_DDR4_15 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR4>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_2.cpp b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_2.cpp
index c9cf947d..2e475a15 100644
--- a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_2.cpp
+++ b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_2.cpp
@@ -37,7 +37,7 @@ class DramPowerTest_DDR4_2 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR4>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_3.cpp b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_3.cpp
index 1e6063ea..032643d2 100644
--- a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_3.cpp
+++ b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_3.cpp
@@ -39,7 +39,7 @@ class DramPowerTest_DDR4_3 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR4>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_4.cpp b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_4.cpp
index 5b281d19..d4b68244 100644
--- a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_4.cpp
+++ b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_4.cpp
@@ -40,7 +40,7 @@ class DramPowerTest_DDR4_4 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR4>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_5.cpp b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_5.cpp
index c0c2938e..8dbcf3a6 100644
--- a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_5.cpp
+++ b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_5.cpp
@@ -41,7 +41,7 @@ class DramPowerTest_DDR4_5 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR4>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_6.cpp b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_6.cpp
index 220c42a1..5273a757 100644
--- a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_6.cpp
+++ b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_6.cpp
@@ -40,7 +40,7 @@ class DramPowerTest_DDR4_6 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR4>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_7.cpp b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_7.cpp
index de12360a..46248c46 100644
--- a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_7.cpp
+++ b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_7.cpp
@@ -36,7 +36,7 @@ class DramPowerTest_DDR4_7 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR4>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_8.cpp b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_8.cpp
index 18fc1a14..b402f009 100644
--- a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_8.cpp
+++ b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_8.cpp
@@ -41,7 +41,7 @@ class DramPowerTest_DDR4_8 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR4>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_9.cpp b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_9.cpp
index e4931725..dea1cc13 100644
--- a/tests/tests_drampower/core/DDR4/ddr4_test_pattern_9.cpp
+++ b/tests/tests_drampower/core/DDR4/ddr4_test_pattern_9.cpp
@@ -45,7 +45,7 @@ class DramPowerTest_DDR4_9 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR4>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/DDR5/ddr5_multidevice_tests.cpp b/tests/tests_drampower/core/DDR5/ddr5_multidevice_tests.cpp
index 606eb46a..51c62001 100644
--- a/tests/tests_drampower/core/DDR5/ddr5_multidevice_tests.cpp
+++ b/tests/tests_drampower/core/DDR5/ddr5_multidevice_tests.cpp
@@ -63,7 +63,7 @@ class DramPowerTest_DDR5_MultiDevice : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR5>(memspeccontainer.memspec.getVariant()));
         memSpec.numberOfDevices = 5;
diff --git a/tests/tests_drampower/core/DDR5/ddr5_multirank_tests.cpp b/tests/tests_drampower/core/DDR5/ddr5_multirank_tests.cpp
index efb76f3b..3fccb2ae 100644
--- a/tests/tests_drampower/core/DDR5/ddr5_multirank_tests.cpp
+++ b/tests/tests_drampower/core/DDR5/ddr5_multirank_tests.cpp
@@ -44,7 +44,7 @@ class DDR5_MultirankTests : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         DRAMPower::MemSpecContainer memspeccontainer = data;
         
         spec = std::make_unique<MemSpecDDR5>(std::get<DRAMUtils::MemSpec::MemSpecDDR5>(memspeccontainer.memspec.getVariant()));
diff --git a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_0.cpp b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_0.cpp
index e4b8e256..ce615d4b 100644
--- a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_0.cpp
+++ b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_0.cpp
@@ -36,7 +36,7 @@ class DramPowerTest_DDR5_0 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR5>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_1.cpp b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_1.cpp
index 3c3b2909..81dd8c70 100644
--- a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_1.cpp
+++ b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_1.cpp
@@ -37,7 +37,7 @@ class DramPowerTest_DDR5_1 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR5>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_10.cpp b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_10.cpp
index b2a3a5ea..024af698 100644
--- a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_10.cpp
+++ b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_10.cpp
@@ -40,7 +40,7 @@ class DramPowerTest_DDR5_10 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR5>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_11.cpp b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_11.cpp
index 8a20c4c6..157ac1fb 100644
--- a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_11.cpp
+++ b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_11.cpp
@@ -42,7 +42,7 @@ class DramPowerTest_DDR5_11 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR5>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_12.cpp b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_12.cpp
index 147ddb82..652af1b3 100644
--- a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_12.cpp
+++ b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_12.cpp
@@ -41,7 +41,7 @@ class DramPowerTest_DDR5_12 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR5>(memspeccontainer.memspec.getVariant()));
 		memSpec.bitWidth = 16;
diff --git a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_13.cpp b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_13.cpp
index 857792d6..56b92db8 100644
--- a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_13.cpp
+++ b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_13.cpp
@@ -58,7 +58,7 @@ class DramPowerTest_DDR5_13 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR5>(memspeccontainer.memspec.getVariant()));
 		memSpec.bitWidth = 16;
diff --git a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_14.cpp b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_14.cpp
index 3cbad8b1..507b7aca 100644
--- a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_14.cpp
+++ b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_14.cpp
@@ -44,7 +44,7 @@ class DramPowerTest_DDR5_14 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR5>(memspeccontainer.memspec.getVariant()));
 		memSpec.bitWidth = 16;
diff --git a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_15.cpp b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_15.cpp
index 132158c2..a2ac8b68 100644
--- a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_15.cpp
+++ b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_15.cpp
@@ -38,7 +38,7 @@ class DramPowerTest_DDR5_15 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR5>(memspeccontainer.memspec.getVariant()));
 		memSpec.bitWidth = 16;
diff --git a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_16.cpp b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_16.cpp
index a64e33d4..6484444b 100644
--- a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_16.cpp
+++ b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_16.cpp
@@ -37,7 +37,7 @@ class DramPowerTest_DDR5_16 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR5>(memspeccontainer.memspec.getVariant()));
 		memSpec.bitWidth = 16;
diff --git a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_17.cpp b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_17.cpp
index a182d439..00ebd1ed 100644
--- a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_17.cpp
+++ b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_17.cpp
@@ -36,7 +36,7 @@ class DramPowerTest_DDR5_17 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR5>(memspeccontainer.memspec.getVariant()));
 		memSpec.bitWidth = 16;
diff --git a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_18.cpp b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_18.cpp
index 4cd420a4..73545dcf 100644
--- a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_18.cpp
+++ b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_18.cpp
@@ -37,7 +37,7 @@ class DramPowerTest_DDR5_18 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR5>(memspeccontainer.memspec.getVariant()));
 		memSpec.bitWidth = 16;
diff --git a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_2.cpp b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_2.cpp
index 78fa3e70..9a9b6dc1 100644
--- a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_2.cpp
+++ b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_2.cpp
@@ -37,7 +37,7 @@ class DramPowerTest_DDR5_2 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR5>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_3.cpp b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_3.cpp
index c308bcbf..14710988 100644
--- a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_3.cpp
+++ b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_3.cpp
@@ -39,7 +39,7 @@ class DramPowerTest_DDR5_3 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR5>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_4.cpp b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_4.cpp
index 723bc4a2..7aceaa48 100644
--- a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_4.cpp
+++ b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_4.cpp
@@ -40,7 +40,7 @@ class DramPowerTest_DDR5_4 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR5>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_5.cpp b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_5.cpp
index 4a8d29cf..60723bf5 100644
--- a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_5.cpp
+++ b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_5.cpp
@@ -41,7 +41,7 @@ class DramPowerTest_DDR5_5 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR5>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_6.cpp b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_6.cpp
index 078424ea..524292b9 100644
--- a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_6.cpp
+++ b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_6.cpp
@@ -40,7 +40,7 @@ class DramPowerTest_DDR5_6 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR5>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_7.cpp b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_7.cpp
index 64a6d204..b929b930 100644
--- a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_7.cpp
+++ b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_7.cpp
@@ -36,7 +36,7 @@ class DramPowerTest_DDR5_7 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR5>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_8.cpp b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_8.cpp
index d9cdd3cd..a2ea3b6e 100644
--- a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_8.cpp
+++ b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_8.cpp
@@ -38,7 +38,7 @@ class DramPowerTest_DDR5_8 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR5>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_9.cpp b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_9.cpp
index 56eb5d0f..a7019881 100644
--- a/tests/tests_drampower/core/DDR5/ddr5_test_pattern_9.cpp
+++ b/tests/tests_drampower/core/DDR5/ddr5_test_pattern_9.cpp
@@ -44,7 +44,7 @@ class DramPowerTest_DDR5_9 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecDDR5>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/LPDDR4/lpddr4_multidevice_tests.cpp b/tests/tests_drampower/core/LPDDR4/lpddr4_multidevice_tests.cpp
index 746167b2..d65a6871 100644
--- a/tests/tests_drampower/core/LPDDR4/lpddr4_multidevice_tests.cpp
+++ b/tests/tests_drampower/core/LPDDR4/lpddr4_multidevice_tests.cpp
@@ -63,7 +63,7 @@ class DramPowerTest_LPDDR4_MultiDevice : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecLPDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR4>(memspeccontainer.memspec.getVariant()));
         memSpec.numberOfDevices = 5;
diff --git a/tests/tests_drampower/core/LPDDR4/lpddr4_multirank_test.cpp b/tests/tests_drampower/core/LPDDR4/lpddr4_multirank_test.cpp
index 651433e3..6304bd22 100644
--- a/tests/tests_drampower/core/LPDDR4/lpddr4_multirank_test.cpp
+++ b/tests/tests_drampower/core/LPDDR4/lpddr4_multirank_test.cpp
@@ -44,7 +44,7 @@ class LPDDR4_MultirankTests : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         DRAMPower::MemSpecContainer memspeccontainer = data;
         spec = std::make_unique<MemSpecLPDDR4>(std::get<DRAMUtils::MemSpec::MemSpecLPDDR4>(memspeccontainer.memspec.getVariant()));
         spec->numberOfRanks = 2;
diff --git a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_0.cpp b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_0.cpp
index b0d5179b..e88d4b05 100644
--- a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_0.cpp
+++ b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_0.cpp
@@ -35,7 +35,7 @@ class DramPowerTest_LPDDR4_0 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecLPDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR4>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_1.cpp b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_1.cpp
index de463a38..65acb321 100644
--- a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_1.cpp
+++ b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_1.cpp
@@ -36,7 +36,7 @@ class DramPowerTest_LPDDR4_1 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecLPDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR4>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_10.cpp b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_10.cpp
index 3a9c3439..e63276fe 100644
--- a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_10.cpp
+++ b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_10.cpp
@@ -40,7 +40,7 @@ class DramPowerTest_LPDDR4_10 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecLPDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR4>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_11.cpp b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_11.cpp
index 297d01f8..826b9129 100644
--- a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_11.cpp
+++ b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_11.cpp
@@ -43,7 +43,7 @@ class DramPowerTest_LPDDR4_11 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecLPDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR4>(memspeccontainer.memspec.getVariant()));
         memSpec.numberOfRanks = 1;
diff --git a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_12.cpp b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_12.cpp
index 4790a82d..0e45aafc 100644
--- a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_12.cpp
+++ b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_12.cpp
@@ -58,7 +58,7 @@ class DramPowerTest_LPDDR4_12 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecLPDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR4>(memspeccontainer.memspec.getVariant()));
 		memSpec.numberOfRanks = 1;
diff --git a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_13.cpp b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_13.cpp
index ff2ad67c..191d64c0 100644
--- a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_13.cpp
+++ b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_13.cpp
@@ -44,7 +44,7 @@ class DramPowerTest_LPDDR4_13 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecLPDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR4>(memspeccontainer.memspec.getVariant()));
 		memSpec.numberOfRanks = 1;
diff --git a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_14.cpp b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_14.cpp
index e653a233..67fb8e5f 100644
--- a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_14.cpp
+++ b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_14.cpp
@@ -38,7 +38,7 @@ class DramPowerTest_LPDDR4_14 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecLPDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR4>(memspeccontainer.memspec.getVariant()));
 		memSpec.numberOfRanks = 1;
diff --git a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_15.cpp b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_15.cpp
index 0bad4e1c..7358af72 100644
--- a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_15.cpp
+++ b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_15.cpp
@@ -40,7 +40,7 @@ class DramPowerTest_LPDDR4_15 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecLPDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR4>(memspeccontainer.memspec.getVariant()));
 		memSpec.numberOfRanks = 1;
diff --git a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_16.cpp b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_16.cpp
index a898b325..72f12293 100644
--- a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_16.cpp
+++ b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_16.cpp
@@ -36,7 +36,7 @@ class DramPowerTest_LPDDR4_16  : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecLPDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR4>(memspeccontainer.memspec.getVariant()));
 		memSpec.numberOfRanks = 1;
diff --git a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_17.cpp b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_17.cpp
index 29ebd169..1646a222 100644
--- a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_17.cpp
+++ b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_17.cpp
@@ -37,7 +37,7 @@ class DramPowerTest_LPDDR4_17 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecLPDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR4>(memspeccontainer.memspec.getVariant()));
 		memSpec.numberOfRanks = 1;
diff --git a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_18.cpp b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_18.cpp
index cea7e3d1..99cdf134 100644
--- a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_18.cpp
+++ b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_18.cpp
@@ -35,7 +35,7 @@ class DramPowerTest_LPDDR4_18 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecLPDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR4>(memspeccontainer.memspec.getVariant()));
 		memSpec.numberOfRanks = 1;
diff --git a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_2.cpp b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_2.cpp
index 27c55e40..7292dc96 100644
--- a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_2.cpp
+++ b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_2.cpp
@@ -37,7 +37,7 @@ class DramPowerTest_LPDDR4_2 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecLPDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR4>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_3.cpp b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_3.cpp
index cb7f08a3..3e0b3fc1 100644
--- a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_3.cpp
+++ b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_3.cpp
@@ -39,7 +39,7 @@ class DramPowerTest_LPDDR4_3 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecLPDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR4>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_4.cpp b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_4.cpp
index cf2b7cd5..9f03534c 100644
--- a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_4.cpp
+++ b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_4.cpp
@@ -40,7 +40,7 @@ class DramPowerTest_LPDDR4_4 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecLPDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR4>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_5.cpp b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_5.cpp
index 7317582e..6f7b8f34 100644
--- a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_5.cpp
+++ b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_5.cpp
@@ -41,7 +41,7 @@ class DramPowerTest_LPDDR4_5 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecLPDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR4>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_6.cpp b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_6.cpp
index e4c475a5..d6e3d188 100644
--- a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_6.cpp
+++ b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_6.cpp
@@ -40,7 +40,7 @@ class DramPowerTest_LPDDR4_6 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecLPDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR4>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_7.cpp b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_7.cpp
index a1b3e729..76265399 100644
--- a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_7.cpp
+++ b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_7.cpp
@@ -36,7 +36,7 @@ class DramPowerTest_LPDDR4_7 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecLPDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR4>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_8.cpp b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_8.cpp
index 9d8dd5a3..fb1daf3d 100644
--- a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_8.cpp
+++ b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_8.cpp
@@ -38,7 +38,7 @@ class DramPowerTest_LPDDR4_8 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecLPDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR4>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_9.cpp b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_9.cpp
index eb49ccad..a6ca7783 100644
--- a/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_9.cpp
+++ b/tests/tests_drampower/core/LPDDR4/lpddr4_test_pattern_9.cpp
@@ -44,7 +44,7 @@ class DramPowerTest_LPDDR4_9 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         MemSpecLPDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR4>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_12.cpp b/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_12.cpp
index a2d0ed48..d3b2f4be 100644
--- a/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_12.cpp
+++ b/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_12.cpp
@@ -39,15 +39,9 @@ class DramPowerTest_LPDDR5_12 : public ::testing::Test {
 
     virtual void SetUp()
     {
-        std::ifstream f(std::string(TEST_RESOURCE_DIR) + "lpddr5.json");
+        auto data = DRAMUtils::parse_memspec_from_file(std::filesystem::path(TEST_RESOURCE_DIR) / "lpddr5.json");
+        auto memSpec = DRAMPower::MemSpecLPDDR5::from_memspec(*data);
 
-        if(!f.is_open()){
-            std::cout << "Error: Could not open memory specification" << std::endl;
-            exit(1);
-        }
-        json data = json::parse(f);
-        DRAMPower::MemSpecContainer memspeccontainer = data;
-        MemSpecLPDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(memspeccontainer.memspec.getVariant()));
         memSpec.numberOfRanks = 1;
         memSpec.numberOfBanks = 8;
         memSpec.banksPerGroup = 8;
diff --git a/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_13.cpp b/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_13.cpp
index bcb6b383..18bd98a6 100644
--- a/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_13.cpp
+++ b/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_13.cpp
@@ -52,15 +52,9 @@ class DramPowerTest_LPDDR5_13 : public ::testing::Test {
 
     virtual void SetUp()
     {
-        std::ifstream f(std::string(TEST_RESOURCE_DIR) + "lpddr5.json");
-
-        if(!f.is_open()){
-            std::cout << "Error: Could not open memory specification" << std::endl;
-            exit(1);
-        }
-        json data = json::parse(f);
-        DRAMPower::MemSpecContainer memspeccontainer = data;
-        MemSpecLPDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(memspeccontainer.memspec.getVariant()));
+        auto data = DRAMUtils::parse_memspec_from_file(std::filesystem::path(TEST_RESOURCE_DIR) / "lpddr5.json");
+        auto memSpec = DRAMPower::MemSpecLPDDR5::from_memspec(*data);
+
 		memSpec.numberOfRanks = 1;
         memSpec.numberOfBanks = 8;
         memSpec.banksPerGroup = 8;
diff --git a/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_14.cpp b/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_14.cpp
index 17938e85..da4cbeea 100644
--- a/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_14.cpp
+++ b/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_14.cpp
@@ -38,15 +38,9 @@ class DramPowerTest_LPDDR5_14 : public ::testing::Test {
 
     virtual void SetUp()
     {
-        std::ifstream f(std::string(TEST_RESOURCE_DIR) + "lpddr5.json");
-
-        if(!f.is_open()){
-            std::cout << "Error: Could not open memory specification" << std::endl;
-            exit(1);
-        }
-        json data = json::parse(f);
-        DRAMPower::MemSpecContainer memspeccontainer = data;
-        MemSpecLPDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(memspeccontainer.memspec.getVariant()));
+        auto data = DRAMUtils::parse_memspec_from_file(std::filesystem::path(TEST_RESOURCE_DIR) / "lpddr5.json");
+        auto memSpec = DRAMPower::MemSpecLPDDR5::from_memspec(*data);
+
 		memSpec.numberOfRanks = 1;
         memSpec.numberOfBanks = 8;
         memSpec.banksPerGroup = 8;
diff --git a/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_15.cpp b/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_15.cpp
index a0c96c05..637b91db 100644
--- a/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_15.cpp
+++ b/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_15.cpp
@@ -32,15 +32,9 @@ class DramPowerTest_LPDDR5_15 : public ::testing::Test {
 
     virtual void SetUp()
     {
-        std::ifstream f(std::string(TEST_RESOURCE_DIR) + "lpddr5.json");
-
-        if(!f.is_open()){
-            std::cout << "Error: Could not open memory specification" << std::endl;
-            exit(1);
-        }
-        json data = json::parse(f);
-        DRAMPower::MemSpecContainer memspeccontainer = data;
-        MemSpecLPDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(memspeccontainer.memspec.getVariant()));
+        auto data = DRAMUtils::parse_memspec_from_file(std::filesystem::path(TEST_RESOURCE_DIR) / "lpddr5.json");
+        auto memSpec = DRAMPower::MemSpecLPDDR5::from_memspec(*data);
+
 		memSpec.numberOfRanks = 1;
         memSpec.numberOfBanks = 8;
         memSpec.banksPerGroup = 8;
diff --git a/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_16.cpp b/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_16.cpp
index f742a90a..f663fb44 100644
--- a/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_16.cpp
+++ b/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_16.cpp
@@ -34,15 +34,9 @@ class DramPowerTest_LPDDR5_16 : public ::testing::Test {
 
     virtual void SetUp()
     {
-        std::ifstream f(std::string(TEST_RESOURCE_DIR) + "lpddr5.json");
-
-        if(!f.is_open()){
-            std::cout << "Error: Could not open memory specification" << std::endl;
-            exit(1);
-        }
-        json data = json::parse(f);
-        DRAMPower::MemSpecContainer memspeccontainer = data;
-        MemSpecLPDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(memspeccontainer.memspec.getVariant()));
+        auto data = DRAMUtils::parse_memspec_from_file(std::filesystem::path(TEST_RESOURCE_DIR) / "lpddr5.json");
+        auto memSpec = DRAMPower::MemSpecLPDDR5::from_memspec(*data);
+
 		memSpec.numberOfRanks = 1;
         memSpec.numberOfBanks = 8;
         memSpec.banksPerGroup = 8;
diff --git a/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_17.cpp b/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_17.cpp
index 18276f38..29ee4669 100644
--- a/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_17.cpp
+++ b/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_17.cpp
@@ -28,15 +28,9 @@ class DramPowerTest_LPDDR5_17 : public ::testing::Test {
 
     virtual void SetUp()
     {
-        std::ifstream f(std::string(TEST_RESOURCE_DIR) + "lpddr5.json");
-
-        if(!f.is_open()){
-            std::cout << "Error: Could not open memory specification" << std::endl;
-            exit(1);
-        }
-        json data = json::parse(f);
-        DRAMPower::MemSpecContainer memspeccontainer = data;
-        MemSpecLPDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(memspeccontainer.memspec.getVariant()));
+        auto data = DRAMUtils::parse_memspec_from_file(std::filesystem::path(TEST_RESOURCE_DIR) / "lpddr5.json");
+        auto memSpec = DRAMPower::MemSpecLPDDR5::from_memspec(*data);
+
 		memSpec.numberOfRanks = 1;
         memSpec.numberOfBanks = 8;
         memSpec.numberOfBankGroups = 2;
diff --git a/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_18.cpp b/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_18.cpp
index 5a90aeae..bc79c5aa 100644
--- a/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_18.cpp
+++ b/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_18.cpp
@@ -30,15 +30,9 @@ class DramPowerTest_LPDDR5_18 : public ::testing::Test {
 
     virtual void SetUp()
     {
-        std::ifstream f(std::string(TEST_RESOURCE_DIR) + "lpddr5.json");
-
-        if(!f.is_open()){
-            std::cout << "Error: Could not open memory specification" << std::endl;
-            exit(1);
-        }
-        json data = json::parse(f);
-        DRAMPower::MemSpecContainer memspeccontainer = data;
-        MemSpecLPDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(memspeccontainer.memspec.getVariant()));
+        auto data = DRAMUtils::parse_memspec_from_file(std::filesystem::path(TEST_RESOURCE_DIR) / "lpddr5.json");
+        auto memSpec = DRAMPower::MemSpecLPDDR5::from_memspec(*data);
+
 		memSpec.numberOfRanks = 1;
         memSpec.numberOfBanks = 8;
         memSpec.numberOfBankGroups = 2;
diff --git a/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_19.cpp b/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_19.cpp
index e4ea9b84..a69b2774 100644
--- a/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_19.cpp
+++ b/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_19.cpp
@@ -31,15 +31,9 @@ class DramPowerTest_LPDDR5_19 : public ::testing::Test {
 
     virtual void SetUp()
     {
-        std::ifstream f(std::string(TEST_RESOURCE_DIR) + "lpddr5.json");
-
-        if(!f.is_open()){
-            std::cout << "Error: Could not open memory specification" << std::endl;
-            exit(1);
-        }
-        json data = json::parse(f);
-        DRAMPower::MemSpecContainer memspeccontainer = data;
-        MemSpecLPDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(memspeccontainer.memspec.getVariant()));
+        auto data = DRAMUtils::parse_memspec_from_file(std::filesystem::path(TEST_RESOURCE_DIR) / "lpddr5.json");
+        auto memSpec = DRAMPower::MemSpecLPDDR5::from_memspec(*data);
+
 		memSpec.numberOfRanks = 1;
         memSpec.numberOfBanks = 8;
         memSpec.numberOfBankGroups = 2;
diff --git a/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_20.cpp b/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_20.cpp
index 50937c5f..848a8241 100644
--- a/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_20.cpp
+++ b/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_20.cpp
@@ -29,15 +29,9 @@ class DramPowerTest_LPDDR5_20 : public ::testing::Test {
 
     virtual void SetUp()
     {
-        std::ifstream f(std::string(TEST_RESOURCE_DIR) + "lpddr5.json");
-
-        if(!f.is_open()){
-            std::cout << "Error: Could not open memory specification" << std::endl;
-            exit(1);
-        }
-        json data = json::parse(f);
-        DRAMPower::MemSpecContainer memspeccontainer = data;
-        MemSpecLPDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(memspeccontainer.memspec.getVariant()));
+		auto data = DRAMUtils::parse_memspec_from_file(std::filesystem::path(TEST_RESOURCE_DIR) / "lpddr5.json");
+		auto memSpec = DRAMPower::MemSpecLPDDR5::from_memspec(*data);
+
 		memSpec.numberOfRanks = 1;
         memSpec.numberOfBanks = 8;
         memSpec.numberOfBankGroups = 2;
diff --git a/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_21.cpp b/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_21.cpp
index 5e409083..62bcd009 100644
--- a/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_21.cpp
+++ b/tests/tests_drampower/core/LPDDR5/LPDDR5_test_pattern_21.cpp
@@ -30,15 +30,9 @@ class DramPowerTest_LPDDR5_21 : public ::testing::Test {
 
     virtual void SetUp()
     {
-        std::ifstream f(std::string(TEST_RESOURCE_DIR) + "lpddr5.json");
+        auto data = DRAMUtils::parse_memspec_from_file(std::filesystem::path(TEST_RESOURCE_DIR) / "lpddr5.json");
+        auto memSpec = DRAMPower::MemSpecLPDDR5::from_memspec(*data);
 
-        if(!f.is_open()){
-            std::cout << "Error: Could not open memory specification" << std::endl;
-            exit(1);
-        }
-        json data = json::parse(f);
-        DRAMPower::MemSpecContainer memspeccontainer = data;
-        MemSpecLPDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(memspeccontainer.memspec.getVariant()));
         memSpec.numberOfRanks = 1;
         memSpec.numberOfBanks = 8;
         memSpec.numberOfBankGroups = 2;
diff --git a/tests/tests_drampower/core/LPDDR5/lpddr5_multidevice_tests.cpp b/tests/tests_drampower/core/LPDDR5/lpddr5_multidevice_tests.cpp
index e13fe7f3..9c0e2162 100644
--- a/tests/tests_drampower/core/LPDDR5/lpddr5_multidevice_tests.cpp
+++ b/tests/tests_drampower/core/LPDDR5/lpddr5_multidevice_tests.cpp
@@ -57,15 +57,9 @@ class DramPowerTest_LPDDR5_MultiDevice : public ::testing::Test {
 
     virtual void SetUp()
     {
-        std::ifstream f(std::string(TEST_RESOURCE_DIR) + "lpddr5.json");
+        auto data = DRAMUtils::parse_memspec_from_file(std::filesystem::path(TEST_RESOURCE_DIR) / "lpddr5.json");
+        auto memSpec = DRAMPower::MemSpecLPDDR5::from_memspec(*data);
 
-        if(!f.is_open()){
-            std::cout << "Error: Could not open memory specification" << std::endl;
-            exit(1);
-        }
-        json data = json::parse(f);
-        MemSpecContainer memspeccontainer = data;
-        MemSpecLPDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(memspeccontainer.memspec.getVariant()));
         memSpec.numberOfDevices = 5;
 
         numberOfDevices = memSpec.numberOfDevices;
diff --git a/tests/tests_drampower/core/LPDDR5/lpddr5_multirank_test.cpp b/tests/tests_drampower/core/LPDDR5/lpddr5_multirank_test.cpp
index 520e99a4..f1bd1af9 100644
--- a/tests/tests_drampower/core/LPDDR5/lpddr5_multirank_test.cpp
+++ b/tests/tests_drampower/core/LPDDR5/lpddr5_multirank_test.cpp
@@ -38,15 +38,8 @@ class LPDDR5_MultirankTests : public ::testing::Test {
     }
 
     void initSpec() {
-        std::ifstream f(std::string(TEST_RESOURCE_DIR) + "lpddr5.json");
-
-        if(!f.is_open()){
-            std::cout << "Error: Could not open memory specification" << std::endl;
-            exit(1);
-        }
-        json data = json::parse(f);
-        DRAMPower::MemSpecContainer memspeccontainer = data;
-        spec = std::make_unique<MemSpecLPDDR5>(std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(memspeccontainer.memspec.getVariant()));
+        auto data = DRAMUtils::parse_memspec_from_file(std::filesystem::path(TEST_RESOURCE_DIR) / "lpddr5.json");
+        spec = std::make_unique<MemSpecLPDDR5>(std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(data->getVariant()));
         spec->numberOfRanks = 2;
     }
 
diff --git a/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_0.cpp b/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_0.cpp
index 2bca8a5c..859cfd18 100644
--- a/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_0.cpp
+++ b/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_0.cpp
@@ -29,15 +29,8 @@ class DramPowerTest_LPDDR5_0 : public ::testing::Test {
 
     virtual void SetUp()
     {
-        std::ifstream f(std::string(TEST_RESOURCE_DIR) + "lpddr5.json");
-
-        if(!f.is_open()){
-            std::cout << "Error: Could not open memory specification" << std::endl;
-            exit(1);
-        }
-        json data = json::parse(f);
-        DRAMPower::MemSpecContainer memspeccontainer = data;
-        MemSpecLPDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(memspeccontainer.memspec.getVariant()));
+        auto data = DRAMUtils::parse_memspec_from_file(std::filesystem::path(TEST_RESOURCE_DIR) / "lpddr5.json");
+        auto memSpec = DRAMPower::MemSpecLPDDR5::from_memspec(*data);
 
         ddr = std::make_unique<LPDDR5>(memSpec);
     }
diff --git a/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_1.cpp b/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_1.cpp
index 397fb232..969f8c9f 100644
--- a/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_1.cpp
+++ b/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_1.cpp
@@ -30,15 +30,8 @@ class DramPowerTest_LPDDR5_1 : public ::testing::Test {
 
     virtual void SetUp()
     {
-        std::ifstream f(std::string(TEST_RESOURCE_DIR) + "lpddr5.json");
-
-        if(!f.is_open()){
-            std::cout << "Error: Could not open memory specification" << std::endl;
-            exit(1);
-        }
-        json data = json::parse(f);
-        DRAMPower::MemSpecContainer memspeccontainer = data;
-        MemSpecLPDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(memspeccontainer.memspec.getVariant()));
+        auto data = DRAMUtils::parse_memspec_from_file(std::filesystem::path(TEST_RESOURCE_DIR) / "lpddr5.json");
+        auto memSpec = DRAMPower::MemSpecLPDDR5::from_memspec(*data);
 
         ddr = std::make_unique<LPDDR5>(memSpec);
     }
diff --git a/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_10.cpp b/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_10.cpp
index d100c31a..3d4ad12f 100644
--- a/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_10.cpp
+++ b/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_10.cpp
@@ -34,15 +34,8 @@ class DramPowerTest_LPDDR5_10 : public ::testing::Test {
 
     virtual void SetUp()
     {
-        std::ifstream f(std::string(TEST_RESOURCE_DIR) + "lpddr5.json");
-
-        if(!f.is_open()){
-            std::cout << "Error: Could not open memory specification" << std::endl;
-            exit(1);
-        }
-        json data = json::parse(f);
-        DRAMPower::MemSpecContainer memspeccontainer = data;
-        MemSpecLPDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(memspeccontainer.memspec.getVariant()));
+        auto data = DRAMUtils::parse_memspec_from_file(std::filesystem::path(TEST_RESOURCE_DIR) / "lpddr5.json");
+        auto memSpec = DRAMPower::MemSpecLPDDR5::from_memspec(*data);
 
         ddr = std::make_unique<LPDDR5>(memSpec);
     }
diff --git a/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_11.cpp b/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_11.cpp
index 7a745e5c..b1e639e1 100644
--- a/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_11.cpp
+++ b/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_11.cpp
@@ -34,15 +34,8 @@ class DramPowerTest_LPDDR5_11 : public ::testing::Test {
 
     virtual void SetUp()
     {
-        std::ifstream f(std::string(TEST_RESOURCE_DIR) + "lpddr5.json");
-
-        if(!f.is_open()){
-            std::cout << "Error: Could not open memory specification" << std::endl;
-            exit(1);
-        }
-        json data = json::parse(f);
-        DRAMPower::MemSpecContainer memspeccontainer = data;
-        MemSpecLPDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(memspeccontainer.memspec.getVariant()));
+        auto data = DRAMUtils::parse_memspec_from_file(std::filesystem::path(TEST_RESOURCE_DIR) / "lpddr5.json");
+        auto memSpec = DRAMPower::MemSpecLPDDR5::from_memspec(*data);
 
         ddr = std::make_unique<LPDDR5>(memSpec);
     }
diff --git a/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_2.cpp b/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_2.cpp
index 2bf269a5..4c83e201 100644
--- a/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_2.cpp
+++ b/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_2.cpp
@@ -31,15 +31,8 @@ class DramPowerTest_LPDDR5_2 : public ::testing::Test {
 
     virtual void SetUp()
     {
-        std::ifstream f(std::string(TEST_RESOURCE_DIR) + "lpddr5.json");
-
-        if(!f.is_open()){
-            std::cout << "Error: Could not open memory specification" << std::endl;
-            exit(1);
-        }
-        json data = json::parse(f);
-        DRAMPower::MemSpecContainer memspeccontainer = data;
-        MemSpecLPDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(memspeccontainer.memspec.getVariant()));
+        auto data = DRAMUtils::parse_memspec_from_file(std::filesystem::path(TEST_RESOURCE_DIR) / "lpddr5.json");
+        auto memSpec = DRAMPower::MemSpecLPDDR5::from_memspec(*data);
 
         ddr = std::make_unique<LPDDR5>(memSpec);
     }
diff --git a/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_3.cpp b/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_3.cpp
index 5cc49ed0..bfdc5b39 100644
--- a/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_3.cpp
+++ b/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_3.cpp
@@ -33,15 +33,8 @@ class DramPowerTest_LPDDR5_3 : public ::testing::Test {
 
     virtual void SetUp()
     {
-        std::ifstream f(std::string(TEST_RESOURCE_DIR) + "lpddr5.json");
-
-        if(!f.is_open()){
-            std::cout << "Error: Could not open memory specification" << std::endl;
-            exit(1);
-        }
-        json data = json::parse(f);
-        DRAMPower::MemSpecContainer memspeccontainer = data;
-        MemSpecLPDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(memspeccontainer.memspec.getVariant()));
+        auto data = DRAMUtils::parse_memspec_from_file(std::filesystem::path(TEST_RESOURCE_DIR) / "lpddr5.json");
+        auto memSpec = DRAMPower::MemSpecLPDDR5::from_memspec(*data);
 
         ddr = std::make_unique<LPDDR5>(memSpec);
     }
diff --git a/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_4.cpp b/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_4.cpp
index 945fdfef..d501879b 100644
--- a/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_4.cpp
+++ b/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_4.cpp
@@ -34,15 +34,8 @@ class DramPowerTest_LPDDR5_4 : public ::testing::Test {
 
     virtual void SetUp()
     {
-        std::ifstream f(std::string(TEST_RESOURCE_DIR) + "lpddr5.json");
-
-        if(!f.is_open()){
-            std::cout << "Error: Could not open memory specification" << std::endl;
-            exit(1);
-        }
-        json data = json::parse(f);
-        DRAMPower::MemSpecContainer memspeccontainer = data;
-        MemSpecLPDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(memspeccontainer.memspec.getVariant()));
+        auto data = DRAMUtils::parse_memspec_from_file(std::filesystem::path(TEST_RESOURCE_DIR) / "lpddr5.json");
+        auto memSpec = DRAMPower::MemSpecLPDDR5::from_memspec(*data);
 
         ddr = std::make_unique<LPDDR5>(memSpec);
     }
diff --git a/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_5.cpp b/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_5.cpp
index 445b44c0..be1dc715 100644
--- a/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_5.cpp
+++ b/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_5.cpp
@@ -35,15 +35,8 @@ class DramPowerTest_LPDDR5_5 : public ::testing::Test {
 
     virtual void SetUp()
     {
-        std::ifstream f(std::string(TEST_RESOURCE_DIR) + "lpddr5.json");
-
-        if(!f.is_open()){
-            std::cout << "Error: Could not open memory specification" << std::endl;
-            exit(1);
-        }
-        json data = json::parse(f);
-        DRAMPower::MemSpecContainer memspeccontainer = data;
-        MemSpecLPDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(memspeccontainer.memspec.getVariant()));
+        auto data = DRAMUtils::parse_memspec_from_file(std::filesystem::path(TEST_RESOURCE_DIR) / "lpddr5.json");
+        auto memSpec = DRAMPower::MemSpecLPDDR5::from_memspec(*data);
 
         ddr = std::make_unique<LPDDR5>(memSpec);
     }
diff --git a/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_6.cpp b/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_6.cpp
index 99b3614c..c1eeba9b 100644
--- a/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_6.cpp
+++ b/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_6.cpp
@@ -34,15 +34,8 @@ class DramPowerTest_LPDDR5_6 : public ::testing::Test {
 
     virtual void SetUp()
     {
-        std::ifstream f(std::string(TEST_RESOURCE_DIR) + "lpddr5.json");
-
-        if(!f.is_open()){
-            std::cout << "Error: Could not open memory specification" << std::endl;
-            exit(1);
-        }
-        json data = json::parse(f);
-        DRAMPower::MemSpecContainer memspeccontainer = data;
-        MemSpecLPDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(memspeccontainer.memspec.getVariant()));
+        auto data = DRAMUtils::parse_memspec_from_file(std::filesystem::path(TEST_RESOURCE_DIR) / "lpddr5.json");
+        auto memSpec = DRAMPower::MemSpecLPDDR5::from_memspec(*data);
 
         ddr = std::make_unique<LPDDR5>(memSpec);
     }
diff --git a/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_7.cpp b/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_7.cpp
index dae127ec..1f8b5e5a 100644
--- a/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_7.cpp
+++ b/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_7.cpp
@@ -30,15 +30,8 @@ class DramPowerTest_LPDDR5_7 : public ::testing::Test {
 
     virtual void SetUp()
     {
-        std::ifstream f(std::string(TEST_RESOURCE_DIR) + "lpddr5.json");
-
-        if(!f.is_open()){
-            std::cout << "Error: Could not open memory specification" << std::endl;
-            exit(1);
-        }
-        json data = json::parse(f);
-        DRAMPower::MemSpecContainer memspeccontainer = data;
-        MemSpecLPDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(memspeccontainer.memspec.getVariant()));
+        auto data = DRAMUtils::parse_memspec_from_file(std::filesystem::path(TEST_RESOURCE_DIR) / "lpddr5.json");
+        auto memSpec = DRAMPower::MemSpecLPDDR5::from_memspec(*data);
 
         ddr = std::make_unique<LPDDR5>(memSpec);
     }
diff --git a/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_8.cpp b/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_8.cpp
index 760a5539..3c5ff7ce 100644
--- a/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_8.cpp
+++ b/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_8.cpp
@@ -32,15 +32,8 @@ class DramPowerTest_LPDDR5_8 : public ::testing::Test {
 
     virtual void SetUp()
     {
-        std::ifstream f(std::string(TEST_RESOURCE_DIR) + "lpddr5.json");
-
-        if(!f.is_open()){
-            std::cout << "Error: Could not open memory specification" << std::endl;
-            exit(1);
-        }
-        json data = json::parse(f);
-        DRAMPower::MemSpecContainer memspeccontainer = data;
-        MemSpecLPDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(memspeccontainer.memspec.getVariant()));
+        auto data = DRAMUtils::parse_memspec_from_file(std::filesystem::path(TEST_RESOURCE_DIR) / "lpddr5.json");
+        auto memSpec = DRAMPower::MemSpecLPDDR5::from_memspec(*data);
 
         ddr = std::make_unique<LPDDR5>(memSpec);
     }
diff --git a/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_9.cpp b/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_9.cpp
index 1692db25..6c50729c 100644
--- a/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_9.cpp
+++ b/tests/tests_drampower/core/LPDDR5/lpddr5_test_pattern_9.cpp
@@ -38,15 +38,8 @@ class DramPowerTest_LPDDR5_9 : public ::testing::Test {
 
     virtual void SetUp()
     {
-        std::ifstream f(std::string(TEST_RESOURCE_DIR) + "lpddr5.json");
-
-        if(!f.is_open()){
-            std::cout << "Error: Could not open memory specification" << std::endl;
-            exit(1);
-        }
-        json data = json::parse(f);
-        DRAMPower::MemSpecContainer memspeccontainer = data;
-        MemSpecLPDDR5 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(memspeccontainer.memspec.getVariant()));
+        auto data = DRAMUtils::parse_memspec_from_file(std::filesystem::path(TEST_RESOURCE_DIR) / "lpddr5.json");
+        auto memSpec = DRAMPower::MemSpecLPDDR5::from_memspec(*data);
 
         ddr = std::make_unique<LPDDR5>(memSpec);
     }
diff --git a/tests/tests_drampower/interface/test_interface_ddr4.cpp b/tests/tests_drampower/interface/test_interface_ddr4.cpp
index 32a317a6..3d3406b3 100644
--- a/tests/tests_drampower/interface/test_interface_ddr4.cpp
+++ b/tests/tests_drampower/interface/test_interface_ddr4.cpp
@@ -87,7 +87,7 @@ class DDR4_WindowStats_Tests : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         DRAMPower::MemSpecContainer memspeccontainer = data;
         spec = std::make_unique<MemSpecDDR4>(std::get<DRAMUtils::MemSpec::MemSpecDDR4>(memspeccontainer.memspec.getVariant()));
     }
@@ -412,7 +412,7 @@ class DDR4_Energy_Tests : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         DRAMPower::MemSpecContainer memspeccontainer = data;
         spec = std::make_unique<MemSpecDDR4>(std::get<DRAMUtils::MemSpec::MemSpecDDR4>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/interface/test_interface_ddr5.cpp b/tests/tests_drampower/interface/test_interface_ddr5.cpp
index 8cee791e..ceafba35 100644
--- a/tests/tests_drampower/interface/test_interface_ddr5.cpp
+++ b/tests/tests_drampower/interface/test_interface_ddr5.cpp
@@ -71,7 +71,7 @@ class DDR5_WindowStats_Tests : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         DRAMPower::MemSpecContainer memspeccontainer = data;
         spec = std::make_unique<MemSpecDDR5>(std::get<DRAMUtils::MemSpec::MemSpecDDR5>(memspeccontainer.memspec.getVariant()));
         spec->bitWidth = 16;
@@ -188,7 +188,7 @@ class DDR5_Energy_Tests : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         DRAMPower::MemSpecContainer memspeccontainer = data;
         spec = std::make_unique<MemSpecDDR5>(std::get<DRAMUtils::MemSpec::MemSpecDDR5>(memspeccontainer.memspec.getVariant()));
 
diff --git a/tests/tests_drampower/interface/test_interface_lpddr4.cpp b/tests/tests_drampower/interface/test_interface_lpddr4.cpp
index b332bfaf..62624129 100644
--- a/tests/tests_drampower/interface/test_interface_lpddr4.cpp
+++ b/tests/tests_drampower/interface/test_interface_lpddr4.cpp
@@ -76,7 +76,7 @@ class DramPowerTest_Interface_LPDDR4 : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         DRAMPower::MemSpecContainer memspeccontainer = data;
         MemSpecLPDDR4 memSpec(std::get<DRAMUtils::MemSpec::MemSpecLPDDR4>(memspeccontainer.memspec.getVariant()));
 		memSpec.numberOfRanks = 1;
diff --git a/tests/tests_drampower/interface/test_interface_lpddr5.cpp b/tests/tests_drampower/interface/test_interface_lpddr5.cpp
index 7f75b294..49b88f24 100644
--- a/tests/tests_drampower/interface/test_interface_lpddr5.cpp
+++ b/tests/tests_drampower/interface/test_interface_lpddr5.cpp
@@ -82,7 +82,7 @@ class LPDDR5_WindowStats_Tests : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         spec = std::make_unique<MemSpecLPDDR5>(std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(memspeccontainer.memspec.getVariant()));
 
@@ -339,7 +339,7 @@ class LPDDR5_Energy_Tests : public ::testing::Test {
             std::cout << "Error: Could not open memory specification" << std::endl;
             exit(1);
         }
-        json data = json::parse(f);
+        json_t data = json_t::parse(f);
         MemSpecContainer memspeccontainer = data;
         spec = std::make_unique<MemSpecLPDDR5>(std::get<DRAMUtils::MemSpec::MemSpecLPDDR5>(memspeccontainer.memspec.getVariant()));