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rt-thread-official/bsp/wch/arm/ch579m/libraries/StdPeriphDriver/CH57x_int.c

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/********************************** (C) COPYRIGHT *******************************
* File Name : CH57x_int.c
* Author : WCH
* Version : V1.0
* Date : 2020/03/18
* Description
*******************************************************************************/
#include "CH57x_common.h"
/*******************************************************************************
* Function Name : NMI_Handler
* Description : NMI中断函数
* Input : None
* Return : None
*******************************************************************************/
//__attribute__((section("NMICode")))
void NMI_Handler( void )
{
UINT32 i=0;
if( (R8_HFCK_PWR_CTRL & RB_CLK_INT32M_PON) == 0 )
{
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
R8_HFCK_PWR_CTRL |= RB_CLK_INT32M_PON; // 打开内部32M
}
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
R16_CLK_SYS_CFG = 5; // 降频 HSI/5=6.4M
R16_POWER_PLAN &= ~(RB_PWR_DCDC_EN|RB_PWR_DCDC_PRE); // 旁路 DC/DC
R8_HFCK_PWR_CTRL |= RB_CLK_PLL_PON; // 打开PLL
R8_SAFE_ACCESS_SIG = 0;
while(1)
{
if(R8_BAT_STATUS & RB_BAT_STAT_LOWER) i = 0;
else i++;
if( i>2000 )
{
/* 执行系统复位 */
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
R8_RST_WDOG_CTRL = RB_SOFTWARE_RESET;
R8_SAFE_ACCESS_SIG = 0;
}
}
}
/*******************************************************************************
* Function Name : LowPower_Halt_1
* Description : 低功耗-Halt_1模式。
此低功耗切到HSI/5时钟运行，唤醒后需要用户自己重新选择系统时钟源
* Input : None
* Return : None
*******************************************************************************/
//__attribute__((section("NMICode")))
void LowPower_Halt_1( void )
{
UINT8 x32Kpw, x32Mpw;
x32Kpw = R8_XT32K_TUNE;
x32Mpw = R8_XT32M_TUNE;
x32Mpw = (x32Mpw&0xfc)|0x03; // 150%额定电流
if(R16_RTC_CNT_32K>0x3fff){ // 超过500ms
x32Kpw = (x32Kpw&0xfc)|0x01; // LSE驱动电流降低到额定电流
}
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
R8_SLP_POWER_CTRL &= ~RB_SLP_ROM_PWR_DN; // flash待机
R8_BAT_DET_CTRL = 0; // 关闭电压监控
R8_XT32K_TUNE = x32Kpw;
R8_XT32M_TUNE = x32Mpw;
R16_CLK_SYS_CFG = 5; // 降频 HSI/5=6.4M
R8_SAFE_ACCESS_SIG = 0;
SCB -> SCR |= SCB_SCR_SLEEPDEEP_Msk; //deep sleep
__WFI();
R8_SAFE_ACCESS_SIG = 0;
/* 开启电压监控 */
PowerMonitor( ENABLE );
}
/*******************************************************************************
* Function Name : LowPower_Halt_2
* Description : 低功耗-Halt_2模式。
此低功耗切到HSI/5时钟运行，唤醒后需要用户自己重新选择系统时钟源
* Input : None
* Return : None
*******************************************************************************/
//__attribute__((section("NMICode")))
void LowPower_Halt_2( void )
{
UINT8 x32Kpw, x32Mpw;
x32Kpw = R8_XT32K_TUNE;
x32Mpw = R8_XT32M_TUNE;
x32Mpw = (x32Mpw&0xfc)|0x03; // 150%额定电流
if(R16_RTC_CNT_32K>0x3fff){ // 超过500ms
x32Kpw = (x32Kpw&0xfc)|0x01; // LSE驱动电流降低到额定电流
}
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
R8_SLP_POWER_CTRL |= RB_SLP_ROM_PWR_DN; // flash停机
R8_BAT_DET_CTRL = 0; // 关闭电压监控
R8_XT32K_TUNE = x32Kpw;
R8_XT32M_TUNE = x32Mpw;
R16_CLK_SYS_CFG = 5; // 降频 HSI/5=6.4M
R8_SAFE_ACCESS_SIG = 0;
SCB -> SCR |= SCB_SCR_SLEEPDEEP_Msk; //deep sleep
__WFI();
R8_SAFE_ACCESS_SIG = 0;
/* 开启电压监控 */
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
R8_BAT_DET_CFG = 1; // 2.05V - 2.33V
R8_BAT_DET_CTRL = RB_BAT_DET_EN;
R8_SAFE_ACCESS_SIG = 0;
__nop(); __nop();
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
R8_BAT_DET_CTRL = RB_BAT_LOW_IE|RB_BAT_LOWER_IE|RB_BAT_DET_EN;
R8_SAFE_ACCESS_SIG = 0;
}
/*******************************************************************************
* Function Name : LowPower_Sleep
* Description : 低功耗-Sleep模式。
此低功耗切到HSI/5时钟运行，唤醒后需要用户自己重新选择系统时钟源
注意调用此函数，DCDC功能强制关闭，唤醒后可以手动再次打开
* Input : rm:
RB_PWR_RAM2K - 最后2K SRAM 供电
RB_PWR_RAM14K - 0x20004000 - 0x20007800 14K SRAM 供电
RB_PWR_EXTEND - USB和RF 单元保留区域供电
NULL - 以上单元都断电
* Return : None
*******************************************************************************/
//__attribute__((section("NMICode")))
void LowPower_Sleep( UINT8 rm )
{
UINT8 x32Kpw, x32Mpw;
x32Kpw = R8_XT32K_TUNE;
x32Mpw = R8_XT32M_TUNE;
x32Mpw = (x32Mpw&0xfc)|0x03; // 150%额定电流
if(R16_RTC_CNT_32K>0x3fff){ // 超过500ms
x32Kpw = (x32Kpw&0xfc)|0x01; // LSE驱动电流降低到额定电流
}
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
R16_POWER_PLAN = RB_PWR_PLAN_EN \
|RB_PWR_MUST_0010 \
|RB_PWR_CORE \
|rm;
R8_SAFE_ACCESS_SIG = 0;
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
R8_BAT_DET_CTRL = 0; // 关闭电压监控
R8_XT32K_TUNE = x32Kpw;
R8_XT32M_TUNE = x32Mpw;
R16_CLK_SYS_CFG = 5; // 降频 HSI/5=6.4M
R8_SAFE_ACCESS_SIG = 0;
SCB -> SCR |= SCB_SCR_SLEEPDEEP_Msk; //deep sleep
__WFI();
R8_SAFE_ACCESS_SIG = 0;
/* 开启电压监控 */
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
R8_BAT_DET_CFG = 1; // 2.05V - 2.33V
R8_BAT_DET_CTRL = RB_BAT_DET_EN;
R8_SAFE_ACCESS_SIG = 0;
__nop(); __nop();
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
R8_BAT_DET_CTRL = RB_BAT_LOW_IE|RB_BAT_LOWER_IE|RB_BAT_DET_EN;
R8_SAFE_ACCESS_SIG = 0;
}
/*******************************************************************************
* Function Name : LowPower_Shutdown
* Description : 低功耗-Shutdown模式。
此低功耗切到HSI/5时钟运行，唤醒后需要用户自己重新选择系统时钟源
注意调用此函数，DCDC功能强制关闭，唤醒后可以手动再次打开
* Input : rm:
RB_PWR_RAM2K - 最后2K SRAM 供电
NULL - 以上单元都断电
* Return : None
*******************************************************************************/
//__attribute__((section("NMICode")))
void LowPower_Shutdown( UINT8 rm )
{
UINT8 x32Kpw, x32Mpw;
x32Kpw = R8_XT32K_TUNE;
x32Mpw = R8_XT32M_TUNE;
x32Mpw = (x32Mpw&0xfc)|0x03; // 150%额定电流
if(R16_RTC_CNT_32K>0x3fff){ // 超过500ms
x32Kpw = (x32Kpw&0xfc)|0x01; // LSE驱动电流降低到额定电流
}
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
R16_POWER_PLAN = RB_PWR_PLAN_EN \
|RB_PWR_MUST_0010 \
|rm;
R8_SAFE_ACCESS_SIG = 0;
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
R8_BAT_DET_CTRL = 0; // 关闭电压监控
R8_XT32K_TUNE = x32Kpw;
R8_XT32M_TUNE = x32Mpw;
R16_CLK_SYS_CFG = 5; // 降频 HSI/5=6.4M
R8_SAFE_ACCESS_SIG = 0;
SCB -> SCR |= SCB_SCR_SLEEPDEEP_Msk; //deep sleep
__WFI();
R8_SAFE_ACCESS_SIG = 0;
/* 开启电压监控 */
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
R8_BAT_DET_CFG = 1; // 2.05V - 2.33V
R8_BAT_DET_CTRL = RB_BAT_DET_EN;
R8_SAFE_ACCESS_SIG = 0;
__nop(); __nop();
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG1;
R8_SAFE_ACCESS_SIG = SAFE_ACCESS_SIG2;
R8_BAT_DET_CTRL = RB_BAT_LOW_IE|RB_BAT_LOWER_IE|RB_BAT_DET_EN;
R8_RST_WDOG_CTRL |= RB_SOFTWARE_RESET;
R8_SAFE_ACCESS_SIG = 0;
}
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