DVT

A5H_9225_8108_SPIV3.0/APP/pvd/PvdApi.c

@@ -0,0 +1,68 @@
+#include "hy9225.h"
+#include "stdio.h"
+#include "PvdApi.h"
+#include "xtal.h"
+
+uint8_t pvd_flag = 0;
+
+void PVD_Init(void)
+{
+		EXTI_InitType EXTI_InitSt;
+    RCC_APB1_Peripheral_Clock_Enable(RCC_APB1_PERIPH_PWR);
+		
+		EXTI_Structure_Initializes(&EXTI_InitSt);
+    EXTI_Flag_Status_Clear(EXTI_LINE16);
+    EXTI_InitSt.EXTI_Line    = EXTI_LINE16;
+    EXTI_InitSt.EXTI_Mode    = EXTI_Mode_Interrupt;
+    EXTI_InitSt.EXTI_Trigger = EXTI_Trigger_Rising_Falling;
+    EXTI_InitSt.EXTI_LineCmd = ENABLE;
+    EXTI_Peripheral_Initializes(&EXTI_InitSt);
+
+
+    PWR_PVD_Level_Config(PWR_PVD_LEVEL_2V88);
+    PWR->CTRL |= 0x10;
+}
+
+
+void PVD_IRQHandler(void)
+{
+    if (EXTI_Interrupt_Status_Get(EXTI_LINE16) != RESET)
+    {
+        pvd_flag = 1;
+        printf("p\n");
+        EXTI_Flag_Status_Clear(EXTI_LINE16);
+    }
+}
+
+
+void PvdApi_Process(void)
+{
+    if(pvd_flag)
+    {
+        pvd_flag=0;
+        printf("occur VCC less than 2V9\n");
+        printf("occur VCC less than 2V9\n");
+        printf("occur VCC less than 2V9\n");
+        printf("ready to restart bcon\n");
+        delay_ms(50);
+        NVIC_SystemReset();//<2F><>λ<EFBFBD><CEBB><EFBFBD><EFBFBD>
+    }
+}
+
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A5H_9225_8108_SPIV3.0/APP/pvd/PvdApi.h

@@ -0,0 +1,10 @@
+#ifndef __PVDAPI_H__
+#define __PVDAPI_H__
+
+#include "stdint.h"
+
+extern void PVD_Init(void);
+extern void PvdApi_Process(void);
+
+#endif
+