SPI on STM32F4 + example

examples/spi_stm32f4/Cargo.toml

@@ -0,0 +1,12 @@
+[package]
+name = "spi_stm32f4"
+version = "0.0.1"
+
+[features]
+default = ["mcu_stm32f4"]
+mcu_stm32f4 = ["zinc/mcu_stm32f4"]
+
+[dependencies]
+zinc = { path =  "../.." }
+macro_zinc = { path = "../../macro_zinc" }
+core = { git = "https://github.com/hackndev/rust-libcore" }

examples/spi_stm32f4/src/main.rs

@@ -0,0 +1,82 @@
+#![feature(core_intrinsics)]
+#![feature(plugin, no_std)]
+#![no_std]
+#![plugin(macro_zinc)]
+
+
+extern crate zinc;
+
+use zinc::hal::timer::Timer;
+use zinc::hal::pin::Gpio;
+use zinc::hal::stm32f4::{pin, timer, spi};
+use zinc::hal::spi::Spi;
+use core::intrinsics::abort;
+
+#[zinc_main]
+pub fn main() {
+  zinc::hal::mem_init::init_stack();
+  zinc::hal::mem_init::init_data();
+
+  let led1 = pin::Pin::new (
+      pin::Port::PortD,
+      13u8,
+      pin::Mode::GpioOut(pin::OutputType::OutPushPull, pin::Speed::VeryLow),
+      pin::PullType::PullNone
+  );
+
+  let spi1Sck = pin::Pin::new (
+      pin::Port::PortA,
+      5u8,
+      pin::Mode::AltFunction(pin::AltMode::AfSpi1_Spi2, pin::OutputType::OutPushPull, pin::Speed::High),
+      pin::PullType::PullNone
+  );
+
+  let spi1Miso = pin::Pin::new (
+      pin::Port::PortA,
+      6u8,
+      pin::Mode::AltFunction(pin::AltMode::AfSpi1_Spi2, pin::OutputType::OutPushPull, pin::Speed::High),
+      pin::PullType::PullNone
+  );
+
+  let spi1Mosi = pin::Pin::new (
+      pin::Port::PortA,
+      7u8,
+      pin::Mode::AltFunction(pin::AltMode::AfSpi1_Spi2, pin::OutputType::OutPushPull, pin::Speed::High),
+      pin::PullType::PullNone
+  );
+
+  let spi1Ss = pin::Pin::new(
+      pin::Port::PortA,
+      4u8,
+      pin::Mode::GpioOut(pin::OutputType::OutPushPull, pin::Speed::VeryLow),
+      pin::PullType::PullNone
+  );
+
+  let timer = timer::Timer::new(timer::TimerPeripheral::Timer2, 25u32);
+
+  let spi1 = match spi::Spi::new(
+      spi::Peripheral::Spi1,
+      spi::Direction::FullDuplex,
+      spi::Role::Master,
+      spi::DataSize::U8,
+      spi::DataFormat::MsbFirst,
+      6) {
+          Ok(e) => e,
+          _ => unsafe {abort ()},
+      };
+
+  spi1Ss.set_high();
+
+  loop {
+    led1.set_high();
+    spi1Ss.set_low();
+    spi1.write('H' as u8);
+    spi1.write('e' as u8);
+    spi1.write('l' as u8);
+    spi1.write('l' as u8);
+    spi1.write('o' as u8);
+    spi1.write('!' as u8);
+    //led1.set_low();
+    //spi1Ss.set_high();
+  }
+}

src/hal/layout_common.ld

@@ -2,6 +2,8 @@
 __aeabi_unwind_cpp_pr0 = abort;
 __aeabi_unwind_cpp_pr1 = abort;
 __aeabi_unwind_cpp_pr2 = abort;
+__exidx_start          = abort;
+__exidx_end            = abort;
 
 __aeabi_memclr4 = __aeabi_memclr;
 
@@ -60,6 +62,6 @@ SECTIONS
         *(.rel.*)  /* dynamic relocations */
         *(.ARM.exidx*) /* index entries for section unwinding */
         *(.ARM.extab*) /* exception unwinding information */
-        *(.debug_gdb_scripts)
+        /**(.debug_gdb_scripts)*/
     }
 }

src/hal/stm32f4/iomem.ld

@@ -14,3 +14,10 @@ stm32f4_iomem_GPIOF = 0x40021400;
 stm32f4_iomem_GPIOG = 0x40021800;
 stm32f4_iomem_GPIOH = 0x40021c00;
 stm32f4_iomem_GPIOI = 0x40022000;
+
+stm32f4_iomem_SPI1 = 0x40013000;
+stm32f4_iomem_SPI2 = 0x40003800;
+stm32f4_iomem_SPI3 = 0x40003C00;
+stm32f4_iomem_SPI4 = 0x40013400;
+stm32f4_iomem_SPI5 = 0x40015000;
+stm32f4_iomem_SPI6 = 0x40015400;

src/hal/stm32f4/mod.rs

@@ -19,3 +19,5 @@ pub mod init;
 pub mod peripheral_clock;
 pub mod pin;
 pub mod timer;
+#[allow(missing_docs)]
+pub mod spi;

src/hal/stm32f4/peripheral_clock.rs

@@ -219,7 +219,7 @@ impl PeripheralClock {
       SDIOClock|SPI1Clock|SYSCFGClock|TIM9Clock|TIM10Clock|
       TIM11Clock => {
         let val = reg::RCC.APB2ENR();
-        reg::RCC.set_AHB1ENR((val & mask) | bit);
+        reg::RCC.set_APB2ENR((val & mask) | bit);
       },
     }