testPVD.cpp

00001 #include "mbed.h"
00002 #include "stm32l1xx_hal_pwr.h"
00003 #include "../../config.h"
00004 
00005 #ifdef __TEST_PVD__
00006 
00007 Serial pc(USBTX, USBRX); // Externally defined
00008 
00009 extern void Error_Handler(void);
00010 
00011 volatile uint8_t pvdIntCnt;
00012 DigitalOut gpio0(GPIO0);
00013 
00014 void HAL_PWR_PVDCallback(void) {
00015     gpio0 = 1;
00016     pvdIntCnt++;
00017     /* Clear PWR Exti pending bit */
00018     __HAL_PWR_PVD_EXTI_CLEAR_FLAG();  // Just to be extra sure
00019 }
00020 int main ()
00021 {
00022     HAL_MspInit();
00023     pvdIntCnt = 0;
00024 
00025     pc.baud(115200);
00026 
00027     while (true) {
00028         pc.printf("PVD_INT_CNT %d, EXTI_GET_FLAG %d\r\n", pvdIntCnt, __HAL_PWR_PVD_EXTI_GET_FLAG());
00029         wait(0.1);
00030     }
00031     return 0;
00032 }
00033 void HAL_MspInit(void)
00034 {
00035   /* USER CODE BEGIN MspInit 0 */
00036   /* USER CODE END MspInit 0 */
00037   PWR_PVDTypeDef sConfigPVD;
00038   __HAL_RCC_COMP_CLK_ENABLE();
00039   __HAL_RCC_SYSCFG_CLK_ENABLE();
00040   __HAL_RCC_PWR_CLK_ENABLE();
00041   HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);
00042   /* System interrupt init*/
00043   /* MemoryManagement_IRQn interrupt configuration */
00044   HAL_NVIC_SetPriority(MemoryManagement_IRQn, 0, 0);
00045   /* BusFault_IRQn interrupt configuration */
00046   HAL_NVIC_SetPriority(BusFault_IRQn, 0, 0);
00047   /* UsageFault_IRQn interrupt configuration */
00048   HAL_NVIC_SetPriority(UsageFault_IRQn, 0, 0);
00049   /* SVC_IRQn interrupt configuration */
00050   HAL_NVIC_SetPriority(SVC_IRQn, 0, 0);
00051   /* DebugMonitor_IRQn interrupt configuration */
00052   HAL_NVIC_SetPriority(DebugMonitor_IRQn, 0, 0);
00053   /* PendSV_IRQn interrupt configuration */
00054   HAL_NVIC_SetPriority(PendSV_IRQn, 0, 0);
00055   /* SysTick_IRQn interrupt configuration */
00056   HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
00057   /* Peripheral interrupt init*/
00058   /* PVD_IRQn interrupt configuration */
00059   HAL_NVIC_SetPriority(PVD_IRQn, 1, 0);
00060   HAL_NVIC_EnableIRQ(PVD_IRQn);  // If not commented out program will hard fault but does not interrupt
00061     /**PVD Configuration
00062     */
00063   sConfigPVD.PVDLevel = PWR_PVDLEVEL_5;
00064   sConfigPVD.Mode = PWR_PVD_MODE_IT_RISING_FALLING;
00065 //  sConfigPVD.Mode = PWR_PVD_MODE_EVENT_RISING;
00066   HAL_PWR_ConfigPVD(&sConfigPVD);
00067     /**Enable the PVD Output
00068     */
00069   HAL_PWR_EnablePVD();
00070   /* USER CODE BEGIN MspInit 1 */
00071   /* USER CODE END MspInit 1 */
00072 }
00073 
00074 #endif