V2.0

2024-02-26 13:22:09 +08:00
parent 0ad592325e
commit 9596a13c17
573 changed files with 36301 additions and 23003 deletions
@@ -0,0 +1,99 @@
+/********************************** (C) COPYRIGHT *******************************
+* File Name          : main.c
+* Author             : WCH
+* Version            : V1.0.0
+* Date               : 2024/02/21
+* Description        : Main program body.
+*********************************************************************************
+* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
+* Attention: This software (modified or not) and binary are used for 
+* microcontroller manufactured by Nanjing Qinheng Microelectronics.
+*******************************************************************************/
+
+/*
+ * @note
+ * The code initializes the power voltage detector (PVD) and enters low-power stop mode, waking up when
+ * the PVD interrupt is triggered.
+ */
+#include "debug.h"
+
+/* Global define */
+
+/* Global Variable */
+
+void PVD_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
+void PVD_IRQHandler(void)
+{
+    if (EXTI_GetITStatus(EXTI_Line16) != RESET)
+    {
+        SystemInit();
+        printf("Run at EXTI\r\n");
+        EXTI_ClearITPendingBit(EXTI_Line16);
+    }
+}
+
+/*********************************************************************
+ * @fn       PVD_Init
+ *
+ * @brief    The function initializes the power voltage detector (PVD) by configuring the necessary registers and
+ *          enabling the PVD interrupt.
+ *
+ * @return   none
+ */
+void PVD_Init(void)
+{
+    RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
+    RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
+
+    EXTI_InitTypeDef EXIT_InitStructure = {0};
+    NVIC_InitTypeDef NVIC_InitStructure = {0};
+
+    EXIT_InitStructure.EXTI_Line = EXTI_Line16;
+    EXIT_InitStructure.EXTI_LineCmd = ENABLE;
+    EXIT_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
+    EXIT_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
+    EXTI_Init(&EXIT_InitStructure);
+
+    NVIC_InitStructure.NVIC_IRQChannel = PVD_IRQn;
+    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
+    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
+    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+    NVIC_Init(&NVIC_InitStructure);
+
+    PWR_PVDLevelConfig(PWR_PVDLevel_2V2);
+
+    PWR_PVDCmd(ENABLE);
+}
+
+/*********************************************************************
+ * @fn      main
+ *
+ * @brief   Main program.
+ *
+ * @return  none
+ */
+int main(void)
+{
+    NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
+    SystemCoreClockUpdate();
+    Delay_Init();
+    USART_Printf_Init(115200);
+    printf("SystemClk:%d\r\n", SystemCoreClock);
+    printf("ChipID:%08x\r\n", DBGMCU_GetCHIPID());
+
+    printf("PVD wakeup TEST\r\n");
+    /*Leave 1s for user to debug the chip*/
+    Delay_Ms(1000);
+    /* The code is initializing the power voltage detector (PVD) and then entering the low-power stop
+    mode. */
+    PVD_Init();
+    printf("Fall asleep...\r\n");
+    Delay_Ms(100);
+    PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI);
+    printf("Woke up!!\r\n");
+
+    while (1)
+    {
+        Delay_Ms(250);
+    }
+}