Question

我试图在Eclipse上实现一个小的freeRTOS项目，使用gnuarmeclipse和openstm32插件以及STM32F411RE核板。当主要功能内部使用GPIO设置和复位功能时，项目正在构建并且LED连接到PORT A引脚5闪烁。但是在使用线程时，它不起作用。我在这里添加代码。感谢您宝贵的时间。

    #include "stm32f4xx.h"
#include "cmsis_os.h"
#include "stdio.h"
#include "stm32f4xx_gpio.h"
#include "stm32f4xx_rcc.h"


static void StartThread(void const * argument);
static void SecondThread(void const * argument);
static void GPIO_Init2(void);

void Delay2(int);

#ifdef __GNUC__
  #define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#else
  #define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
#endif /* __GNUC__ */

int main(void)
{

    GPIO_Init2();

    /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
    osThreadDef(USER_Thread1, StartThread, osPriorityNormal, 0, configMINIMAL_STACK_SIZE);
    osThreadDef(USER_Thread2, SecondThread, osPriorityNormal, 0, configMINIMAL_STACK_SIZE);
    osThreadCreate (osThread(USER_Thread1), NULL);
    osThreadCreate (osThread(USER_Thread2), NULL);

    /* Start scheduler */
    osKernelStart();
  while (1){

  }

}
void Delay2(int nCount)

{

while(nCount--){
int a=5000;

while(a--){

}

}

}

void GPIO_Init2(void)
{
    RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA ,ENABLE);
        GPIO_InitTypeDef GPIO_InitDef;
        GPIO_InitDef.GPIO_Pin = GPIO_Pin_5;
        GPIO_InitDef.GPIO_Mode=GPIO_Mode_OUT;
        GPIO_InitDef.GPIO_OType=GPIO_OType_PP;
        GPIO_InitDef.GPIO_PuPd=GPIO_PuPd_NOPULL;
        GPIO_InitDef.GPIO_Speed=GPIO_Speed_50MHz;
        GPIO_Init(GPIOA, &GPIO_InitDef);


            GPIO_SetBits(GPIOA,GPIO_Pin_5);
            osDelay(50);
            GPIO_ResetBits(GPIOA,GPIO_Pin_5);
            osDelay(100);


}

/* USER CODE BEGIN 4 */

/* USER CODE END 4 */

/* StartDefaultTask function */
static void StartThread(void const * argument)
{
  while(1) {
      GPIO_SetBits(GPIOA,GPIO_Pin_5);
      osDelay(500);
      GPIO_ResetBits(GPIOA,GPIO_Pin_5);
      osDelay(100);
      }

}

static void SecondThread(void const * argument)
{

        while(1) {

        }

}

#ifdef USE_FULL_ASSERT

/**
   * @brief Reports the name of the source file and the source line number
   * where the assert_param error has occurred.
   * @param file: pointer to the source file name
   * @param line: assert_param error line source number
   * @retval None
   */
void assert_failed(uint8_t* file, uint32_t line)
{
  /* USER CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
    ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */

}

#endif

Answer 1

您无法在osDelay()函数中使用GPIO_Init2()，因为调度程序尚未启动（osKernelStart()）。

STM32 freertos线程无法正常工作

1 个答案: