keil5,直接烧录可以运行，编译后无法运行

Question

用别人的代码，别人编译好的，测试freertos的按键触发，直接烧录，进行按键测试，按下复位按键，key1 key2，都可以触发printf打印串口。
但是，用别人的代码，什么都不动，就再编译了一下，也没有bug，然后烧录，进行按键测试，复位按钮按下5-6下，才能触发一次printf，按下key1 key2，无反应。

求解答

#include "stdio.h"
#include "stm32f4xx.h"
#include "stm32f4xx_hal.h"

#include "freeRTOS.h"
#include "task.h"


/*--------------------------------------------------------------------*/



TaskHandle_t task1_handle;
TaskHandle_t task2_handle;
TaskHandle_t key_handle;

volatile uint32_t key1_flag,key2_flag;



//初始化系统时钟配置
void SystemClock_Config(void)
{
    RCC_OscInitTypeDef RCC_OscInitStruct = {0};
    RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

    __HAL_RCC_PWR_CLK_ENABLE();
    __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);

    RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
    RCC_OscInitStruct.HSEState = RCC_HSE_ON;
    RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
    RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
    RCC_OscInitStruct.PLL.PLLM = 25;
    RCC_OscInitStruct.PLL.PLLN = 336;
    RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
    RCC_OscInitStruct.PLL.PLLQ = 4;
    if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
    {
//    Error_Handler();
    }

    RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
    RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
    RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
    RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
    RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;

    if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK)
    {
//    Error_Handler();
    }
}

void LED_Init(void)
{
    GPIO_InitTypeDef GPIO_InitStruct = {0};

    __HAL_RCC_GPIOE_CLK_ENABLE();
    __HAL_RCC_GPIOF_CLK_ENABLE();
    HAL_GPIO_WritePin(GPIOF, GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10, GPIO_PIN_SET);
    HAL_GPIO_WritePin(GPIOE, GPIO_PIN_2, GPIO_PIN_SET);

    GPIO_InitStruct.Pin = GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10;
    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    HAL_GPIO_Init(GPIOF, &GPIO_InitStruct);
    
    GPIO_InitStruct.Pin = GPIO_PIN_2;
    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
    
}



void USART1_Init(void)
{
    //串口引脚初始化
    GPIO_InitTypeDef GPIO_InitStruct = {0};

    __HAL_RCC_USART1_CLK_ENABLE();
    __HAL_RCC_GPIOA_CLK_ENABLE();

    GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
    
    //串口配置初始化
    UART_HandleTypeDef huart1;
    huart1.Instance = USART1;
    huart1.Init.BaudRate = 115200;
    huart1.Init.WordLength = UART_WORDLENGTH_8B;
    huart1.Init.StopBits = UART_STOPBITS_1;
    huart1.Init.Parity = UART_PARITY_NONE;
    huart1.Init.Mode = UART_MODE_TX_RX;

  if (HAL_UART_Init(&huart1) != HAL_OK)
  {
//    Error_Handler();
  }
}

void Key_Init(void)
{
    GPIO_InitTypeDef GPIO_InitStruct = {0};

    __HAL_RCC_GPIOI_CLK_ENABLE();
    __HAL_RCC_GPIOF_CLK_ENABLE();

    /*Configure GPIO pin : PI9 */
    GPIO_InitStruct.Pin = GPIO_PIN_9;
    GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    HAL_GPIO_Init(GPIOI, &GPIO_InitStruct);

    /*Configure GPIO pin : PF11 */
    GPIO_InitStruct.Pin = GPIO_PIN_11;
    GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    HAL_GPIO_Init(GPIOF, &GPIO_InitStruct);

    /* EXTI interrupt init*/
    HAL_NVIC_SetPriority(EXTI9_5_IRQn, 5, 0);
    HAL_NVIC_EnableIRQ(EXTI9_5_IRQn);

    HAL_NVIC_SetPriority(EXTI15_10_IRQn, 5, 0);
    HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
    
}

//printf重定向
int fputc(int ch,FILE* F)
{
    while(!(USART1->SR&(1<<7)));
    USART1->DR = (uint8_t)ch;
    
    return ch;
}



void task_1(void * arg)
{
    while(1)
    {
        //空任务
        vTaskDelay(1000);
    }
}

void task_2(void * arg)
{
    while(1)
    {
        vTaskDelay(1000);
    }
}

void key_task(void * arg)
{
    while(1)
    {
        if(key1_flag == 1)
        {
            if(HAL_GPIO_ReadPin(GPIOI, GPIO_PIN_9) == GPIO_PIN_RESET)
            {
                vTaskDelay(30);
                if(HAL_GPIO_ReadPin(GPIOI, GPIO_PIN_9) == GPIO_PIN_RESET)
                {
                    printf("key1 trigger \r\n");
                    
                }
                key1_flag = 0;
            }
        }
        else if(key2_flag == 1)
        {
            if(HAL_GPIO_ReadPin(GPIOF, GPIO_PIN_11) == GPIO_PIN_RESET)
            {
                vTaskDelay(30);
                if(HAL_GPIO_ReadPin(GPIOF, GPIO_PIN_11) == GPIO_PIN_RESET)
                {
                    printf("key2 trigger \r\n");
                }
                key2_flag = 0;
            }            
        }
        vTaskDelay(10);
    }
}

int main(void)
{

    HAL_Init();

    SystemClock_Config();        
    LED_Init();
    USART1_Init();
    Key_Init();
    printf("task init \r\n");
    //创建任务
    xTaskCreate(task_1,"task1",128,NULL,2,&task1_handle);
    xTaskCreate(task_2,"task2",128,NULL,2,&task2_handle);
  xTaskCreate(key_task,"key_task",128,NULL,2,&key_handle);
    
    
    //开启调度
    vTaskStartScheduler();
    
    
    
    while(1)
    {

        
    }
}


void EXTI9_5_IRQHandler(void)
{
    HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_9);
}

void EXTI15_10_IRQHandler(void)
{
    HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_11);
}

void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
    if(GPIO_Pin == GPIO_PIN_9)
    {
        if(HAL_GPIO_ReadPin(GPIOI, GPIO_PIN_9) == GPIO_PIN_RESET)
        {
            key1_flag = 1;
        }
    }
    else if(GPIO_Pin == GPIO_PIN_11)
    {
        if(HAL_GPIO_ReadPin(GPIOF, GPIO_PIN_11) == GPIO_PIN_RESET)
        {
            key2_flag = 1;
        }
    }
}

Answer 1

解决了，printf里面\r\n之前不能有空格[看][捂脸]有空格就卡死在那了