HA freertos 从powerdown模式下唤醒异常

[gaoSheng]

使用YCT的生成的HA freertos增加gpio wku唤醒powerdown，发现程序并没有进入复位流程重新执行main程序.没有打印Build信息

void prvPrintTaskB(void *pvParameters)
{
    (void)pvParameters;
    while (1)
    {
        PRINTF("POWERDOWN_MODE \r\n");

	POWER_SYS_SetMode(POWERDOWN_MODE, POWER_MANAGER_POLICY_AGREEMENT);

        vTaskDelay(2000UL);
    }
}

int main(void)
{
    /* USER CODE BEGIN 1 */
    status_t status = STATUS_SUCCESS;
	  volatile uint32_t temp = 0xFFFFFF;
    /* USER CODE END 1 */ 
    Board_Init();
    PRINTF("1\r\n");
    /* USER CODE BEGIN 2 */
    PRINTF("main Build %s %s\r\n", __DATE__, __TIME__);
    WKU_DRV_SetPinIsolation(false);	
    WKU_DRV_InitReset(WKU_INST, &wkup_resetConfig0);
    WKU_DRV_InitPinWakeup(WKU_INST, WKP_PIN_CH_NUM0, wkup_pinsConfig0);
  	PRINTF("2\r\n");
    while(temp--);
		WKU_DRV_SetPinIsolation(true);
  	PRINTF("Freertos GPIO wku form pd Demo!\r\n");
  	PRINTF("3\r\n");
    xTaskCreate(prvPrintTaskA, "TaskA", configMINIMAL_STACK_SIZE, NULL, mainQUEUE_RECEIVE_TASK_PRIORITY, NULL);
    xTaskCreate(prvPrintTaskB, "TaskB", configMINIMAL_STACK_SIZE, NULL, mainQUEUE_SEND_TASK_PRIORITY, NULL);

    /* Create the software timer that is responsible for turning off the LED
  if the button is not pushed within 5000ms, as described at the top of
  this file. */
    xPrintTimer = xTimerCreate("PrintTimer",         /* A text name, purely to help debugging. */
                               5000UL,               /* The timer period, in this case 5000ms (5s). */
                               pdTRUE,               /* This is a one shot timer, so xAutoReload is set to pdFALSE. */
                               (void *)0,            /* The ID is not used, so can be set to anything. */
                               prvPrintTimerCallback /* The callback function that switches the LED off. */
    );
    xTimerStart(xPrintTimer, 0);
    /* Start the tasks and timer running. */
    vTaskStartScheduler();
    /* USER CODE END 2 */

    /* Infinite loop */
    /* USER CODE BEGIN WHILE */
    while (1)
    {
        if (status != STATUS_SUCCESS)
        {
            break;
        }
        /* USER CODE END WHILE */
        /* USER CODE BEGIN 3 */
    }
    return status;
    /* USER CODE END 3 */
}

后面测试发现如果我注释掉WKU_DRV_SetPinIsolation的两句配置后能正常从main进入，如果我把WKU_DRV_SetPinIsolation(true); 加到 POWER_SYS_SetMode前面现象同上

    //WKU_DRV_SetPinIsolation(false);	

    //WKU_DRV_SetPinIsolation(true);	

看到Power_Pin_Wakeup_From_Powerdown_Mode_Demo也有这个操作

WKU_DRV_SetPinIsolation API我的理解是保持引脚状态，为啥会影响从PD唤醒的程序的执行的位置

[gaoSheng]

gaoSheng 下面是我的工程，在HA EVB Q176 Rev.B上面也能复现08e41432-d06e-40fa-9891-e77f6dfa5638-Freertos_powerdown_wku_Demo (2).zip

[major]

WKU_DRV_SetPinIsolation API确实是用来保持引脚状态的，并不会影响程序执行，测试效果上影响程序执行是因为UART的引脚在隔离状态并不会输出，也就表现为没有打印状态，因为处于唤醒隔离状态IO是保持原有状态的，必须解除隔离才能有正常的功能。

[gaoSheng]

major 感谢您的回复，我调整了一下 WKU_DRV_SetPinIsolation(false); 的位置（放到打印之前），程序运行确实与预期相符了