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April 11, 2024
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FreeRtos not all tasks are running

  • April 11, 2024
  • 1 reply
  • 1179 views

Hello,

 

I have a problem with threads. All of them are of same priority, with osDelay(300), except the uartThread which has osDelay(1). Everything else is the same for all threads. I have allocated 20k of HEAP and in ioc file it says im using only 3.5k so that should be fine i guess. However, only one of the threads is running (I2C_temp works fine besides the uartDATA), others never even enter the for(;;) loop. Any ideas?

So this is the freertos.c file where I create the tasks 

 

 

 

/* USER CODE BEGIN Header */
/**
 ******************************************************************************
 * File Name : freertos.c
 * Description : Code for freertos applications
 ******************************************************************************
 * @attention
 *
 * Copyright (c) 2024 STMicroelectronics.
 * All rights reserved.
 *
 * This software is licensed under terms that can be found in the LICENSE file
 * in the root directory of this software component.
 * If no LICENSE file comes with this software, it is provided AS-IS.
 *
 ******************************************************************************
 */
/* USER CODE END Header */

/* Includes ------------------------------------------------------------------*/
#include "FreeRTOS.h"
#include "task.h"
#include "main.h"
#include "cmsis_os.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "usart.h"
#include "i2c.h"
#include "spi.h"
#include "string.h"
#include "stepper.h"
#include <stdlib.h>
#include <stdio.h>
#include "stm32l4xx_it.h"

/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */

/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN Variables */
volatile char received_data;
volatile uint8_t commands;
e_UART_Status uartStatus = undefined;
/* USER CODE END Variables */
/* Definitions for stepper */
osThreadId_t stepperHandle;
const osThreadAttr_t stepper_attributes = {
 .name = "stepper",
 .stack_size = 128 * 4,
 .priority = (osPriority_t)osPriorityNormal,
};
/* Definitions for I2C_TempSens */
osThreadId_t I2C_TempSensHandle;
const osThreadAttr_t I2C_TempSens_attributes = {
 .name = "I2C_TempSens",
 .stack_size = 128 * 4,
 .priority = (osPriority_t)osPriorityNormal,
};
/* Definitions for SPI_TempSens */
osThreadId_t SPI_TempSensHandle;
const osThreadAttr_t SPI_TempSens_attributes = {
 .name = "SPI_TempSens",
 .stack_size = 128 * 4,
 .priority = (osPriority_t)osPriorityNormal,
};
/* Definitions for uart */
osThreadId_t uartHandle;
const osThreadAttr_t uart_attributes = {
 .name = "uart",
 .stack_size = 128 * 4,
 .priority = (osPriority_t)osPriorityNormal,
};
/* Definitions for uartQueue */
osMessageQueueId_t uartQueueHandle;
const osMessageQueueAttr_t uartQueue_attributes = {
 .name = "uartQueue"};
/* Definitions for Mutex1 */
osMutexId_t Mutex1Handle;
const osMutexAttr_t Mutex1_attributes = {
 .name = "Mutex1"};
/* Definitions for mutexStepper */
osMutexId_t mutexStepperHandle;
const osMutexAttr_t mutexStepper_attributes = {
 .name = "mutexStepper"};
/* Definitions for mutexUart */
osMutexId_t mutexUartHandle;
const osMutexAttr_t mutexUart_attributes = {
 .name = "mutexUart"};

/* Private function prototypes -----------------------------------------------*/
/* USER CODE BEGIN FunctionPrototypes */

/* USER CODE END FunctionPrototypes */

void StepperMotor(void *argument);
void I2C_temp(void *argument);
void SPI_temp(void *argument);
void uartDATA(void *argument);

void MX_FREERTOS_Init(void); /* (MISRA C 2004 rule 8.1) */

/**
 * @brief FreeRTOS initialization
 * None
 * @retval None
 */
void MX_FREERTOS_Init(void)
{
 /* USER CODE BEGIN Init */

 /* USER CODE END Init */
 /* Create the mutex(es) */
 /* creation of Mutex1 */
 Mutex1Handle = osMutexNew(&Mutex1_attributes);

 /* creation of mutexStepper */
 mutexStepperHandle = osMutexNew(&mutexStepper_attributes);

 /* creation of mutexUart */
 mutexUartHandle = osMutexNew(&mutexUart_attributes);

 /* USER CODE BEGIN RTOS_MUTEX */
 /* add mutexes, ... */
 /* USER CODE END RTOS_MUTEX */

 /* USER CODE BEGIN RTOS_SEMAPHORES */
 /* add semaphores, ... */
 /* USER CODE END RTOS_SEMAPHORES */

 /* USER CODE BEGIN RTOS_TIMERS */
 /* start timers, add new ones, ... */
 /* USER CODE END RTOS_TIMERS */

 /* Create the queue(s) */
 /* creation of uartQueue */
 uartQueueHandle = osMessageQueueNew(16, sizeof(uint16_t), &uartQueue_attributes);

 /* USER CODE BEGIN RTOS_QUEUES */
 /* add queues, ... */
 /* USER CODE END RTOS_QUEUES */

 /* Create the thread(s) */
 /* creation of stepper */
 stepperHandle = osThreadNew(StepperMotor, NULL, &stepper_attributes);

 /* creation of I2C_TempSens */
 I2C_TempSensHandle = osThreadNew(I2C_temp, NULL, &I2C_TempSens_attributes);

 /* creation of SPI_TempSens */
 SPI_TempSensHandle = osThreadNew(SPI_temp, NULL, &SPI_TempSens_attributes);

 /* creation of uart */
 uartHandle = osThreadNew(uartDATA, NULL, &uart_attributes);

 /* USER CODE BEGIN RTOS_THREADS */
 /* add threads, ... */
 /* USER CODE END RTOS_THREADS */

 /* USER CODE BEGIN RTOS_EVENTS */
 /* add events, ... */
 /* USER CODE END RTOS_EVENTS */
}

 

 

 

 

And this are the tasks. 

 

 

 

/* USER CODE END Header_StepperMotor */
void StepperMotor(void *argument)
{
 /* USER CODE BEGIN StepperMotor */
 char buffer[50];
 /* Infinite loop */
 for (;;)
 {
 if (commandCheck() == set_stepper_OK)
 {

 if (osMutexAcquire(mutexStepperHandle, portMAX_DELAY) == osOK)
 {
 HAL_UART_Transmit(&huart1, "BUSY SET_STEPPER\n", 18, HAL_MAX_DELAY);
 motorRotation(motorInfo.motorNum, motorInfo.numOfSteps);
 HAL_UART_Transmit(&huart1, "OK SET_STEPPER\n", 16, HAL_MAX_DELAY);
 osMutexRelease(mutexStepperHandle);
 }
 else
 {
 HAL_UART_Transmit(&huart1, "ERR\n", 5, HAL_MAX_DELAY);
 }
 }

 osDelay(300);
 }

 /* USER CODE END StepperMotor */
}

/* USER CODE BEGIN Header_I2C_temp */
/**
 * @brief Function implementing the mojTask thread.
 * argument: Not used
 * @retval None
 */
/* USER CODE END Header_I2C_temp */
void I2C_temp(void *argument)
{
 /* USER CODE BEGIN I2C_temp */
 float temp1;
 char buffer[12] = {0};
 char bufferTemp[10] = {0};
 UBaseType_t testtest;
 testtest = uxTaskGetNumberOfTasks();
 for (;;)
 {


 if (uartStatus == get_temp_1_OK)
 {
 temp1 = read_I2C();
 floatToString(temp1, buffer);
 HAL_UART_Transmit(&huart1, buffer, sizeof(buffer), HAL_MAX_DELAY);
 uartStatus = undefined;
 }

 osDelay(300);
 }

 /* USER CODE END I2C_temp */
}

/* USER CODE BEGIN Header_SPI_temp */
/**
 * @brief Function implementing the SPI_TempSens thread.
 * argument: Not used
 * @retval None
 */
/* USER CODE END Header_SPI_temp */
void SPI_temp(void *argument)
{
 /* USER CODE BEGIN SPI_temp */
 float temp1, temp2;
 char buffer[12] = {0};
 /* Infinite loop */
 for (;;)
 {
 if (uartStatus == get_temp_2_OK)
 {
 temp1 = read_SPI1();
 floatToString(temp1, buffer);
 HAL_UART_Transmit(&huart1, buffer, sizeof(buffer), HAL_MAX_DELAY);
 uartStatus = undefined;
 }
 else if (uartStatus == get_temp_3_OK)
 {
 temp2 = read_SPI2();
 floatToString(temp2, buffer);
 HAL_UART_Transmit(&huart1, buffer, sizeof(buffer), HAL_MAX_DELAY);
 uartStatus = undefined;
 }

 osDelay(300);
 }
 /* USER CODE END SPI_temp */
}

/* USER CODE BEGIN Header_uartDATA */
/**
 * @brief Function implementing the uart thread.
 * argument: Not used
 * @retval None
 */
/* USER CODE END Header_uartDATA */
void uartDATA(void *argument)
{
 /* USER CODE BEGIN uartDATA */

 uint8_t cnt = 0;
 uint8_t temp;
 char buffer[50] = {'\0'};
 char msg = {0};
 char firstByte;
 __HAL_UART_CLEAR_FLAG(&huart1, UART_CLEAR_OREF);
 HAL_UART_Receive_IT(&huart1, (char *)&received_data, sizeof(received_data));
 /* Infinite loop */
 for (;;)
 {

 if (osMessageQueueGet(uartQueueHandle, &msg, NULL, osWaitForever) == osOK)
 {

 if (msg == '\r')
 {

 buffer[0] = firstByte;
 parse_UART(buffer);
 memset(buffer, 0, sizeof(buffer));
 cnt = 0;
 uartStatus = commandCheck();
 osMessageQueueReset(uartQueueHandle);
 // commands = commandCheck();
 }
 else if (msg == '\n')
 {
 }
 else if (cnt < (sizeof(buffer) - 1))
 {
 buffer[cnt] = msg;
 cnt++;
 }
 if (cnt == 1)
 {
 firstByte = buffer[0];
 }
 }

 osDelay(1);
 }

 /* USER CODE END uartDATA */
}

 

 

Threads and addresses:

PPopo1_0-1712832411372.png

 

 

 

    This topic has been closed for replies.
    Best answer by PPopo.1

    So i found the solution. Even tho I used .ioc file to change the overall HEAP size, i did not allocate more heap to the threads. When I was using sprintf() the stack overflow happened. I manually increased stack size of the threads: 

    osThreadId_t stepperHandle;
    const osThreadAttr_t stepper_attributes = {
        .name = "stepper",
        .stack_size = 256 * 4,
        .priority = (osPriority_t)osPriorityNormal,
    };

    and now it works.

    1 reply

    PPopo.1AuthorAnswer
    Graduate
    April 11, 2024

    So i found the solution. Even tho I used .ioc file to change the overall HEAP size, i did not allocate more heap to the threads. When I was using sprintf() the stack overflow happened. I manually increased stack size of the threads: 

    osThreadId_t stepperHandle;
    const osThreadAttr_t stepper_attributes = {
        .name = "stepper",
        .stack_size = 256 * 4,
        .priority = (osPriority_t)osPriorityNormal,
    };

    and now it works.