From 73c65839c44d0281ea45c769701d0f9d126f5ea6 Mon Sep 17 00:00:00 2001
From: Hiroyuki Yamasaki <yam@yam.jp>
Date: Mon, 5 Oct 2020 23:27:40 +0900
Subject: [PATCH] M5.Axp.PowerOff ().

I implemented M5.Axp.PowerOff ().
---
 src/AXP192.cpp | 8 +++++++-
 src/AXP192.h   | 3 +++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/AXP192.cpp b/src/AXP192.cpp
index bccfe0c..449d627 100644
--- a/src/AXP192.cpp
+++ b/src/AXP192.cpp
@@ -467,4 +467,10 @@ void AXP192::SetLDO2( bool State )
 	else 
 		buf = ~(1<<2) & buf;
 	Write1Byte( 0x12 , buf );
-}
\ No newline at end of file
+}
+
+// Cut all power, except for LDO1 (RTC)
+void AXP192::PowerOff()
+{
+    Write1Byte(0x32, Read8bit(0x32) | 0x80);     // MSB for Power Off
+}
diff --git a/src/AXP192.h b/src/AXP192.h
index 07078ef..081dd00 100644
--- a/src/AXP192.h
+++ b/src/AXP192.h
@@ -62,6 +62,9 @@ class AXP192 {
     void SetCoulombClear();
 	void SetLDO2( bool State );
 
+    // -- Power Off
+    void PowerOff();
+
 public:
 	void Write1Byte( uint8_t Addr ,  uint8_t Data );
 	uint8_t Read8bit( uint8_t Addr );