[The ninth week of embedded system basics]--embedded real-time operating system uc/OS

1.CubeMX build project

1.1 Configure RCC (open external clock), SYS (select debug interface)

1.2 Configure GPIO (PC13 is used to light up LED lights)

1.3 Configure USART1 (serial port output)

1.4 Save, generate project file

Since the above steps are relatively simple and not shown, if you forget, you can refer to my other articles:

https://blog.csdn.net/weixin_52166467/article/details/127463707?spm=1001.2014.3001.5502

2. Transplant uCOS

2.1 uC-OS3 source code download

Officially provided uc-os3 source code repository (too troublesome): https://github.com/weston-embedded/uC-OS3

Finished uc-os3 source code: https://pan.baidu.com/s/10RqsDRecbmVteWmDv2oUNQ Extraction code: 1234

2.2 Copy the uC/OS-III file to the project folder

2.2.1 Explanation of network disk files

The files organized by the network disk are as follows, but uC-BSP and uC-CONFIG need to be added by themselves. These two files are not included in the official source code.

The bsp.c and bsp.h files are newly created in the uC-BSP folder, both of which are empty files, and the code is written later

uC-CONFIG needs to add the following files

The added files come from the EvalBoards folder, just copy the files in the EvalBoards folder to uC-CONFIG, the search path is as follows

The above operations only need to be understood, the network disk files have been sorted out

2.2.2 Copy files

Copy the following uC/OS-III files to the MDK of the HAL project- ARM under the folder


2.3 Start porting uC-OS3

2.3.1 Add engineering components

Click on Manage Project Items and add the following folders

Click the LIB folder, and then click Add Files to add files. The specific files to be added are as follows

The remaining files need to be added

PORT file is added as follows

CONIFG file is added as follows

BSP file is added as follows

The CPU file is added as follows

SOURCE file is added as follows

2.3.2 Add header file path


Manually add the missing path

2.4 Modify the content of the file

Find the bsp.c and bsp.h files under BSP

bsp.h

// bsp.h
#ifndef  __BSP_H__
#define  __BSP_H__

#include "stm32f1xx_hal.h"

void BSP_Init(void);

#endif

bsp.c

// bsp.c
#include "includes.h"

#define  DWT_CR      *(CPU_REG32 *)0xE0001000
#define  DWT_CYCCNT  *(CPU_REG32 *)0xE0001004
#define  DEM_CR      *(CPU_REG32 *)0xE000EDFC
#define  DBGMCU_CR   *(CPU_REG32 *)0xE0042004

#define  DEM_CR_TRCENA                   (1 << 24)
#define  DWT_CR_CYCCNTENA                (1 <<  0)

CPU_INT32U  BSP_CPU_ClkFreq (void)
{
    return HAL_RCC_GetHCLKFreq();
}

void BSP_Tick_Init(void)
{
	CPU_INT32U cpu_clk_freq;
	CPU_INT32U cnts;
	cpu_clk_freq = BSP_CPU_ClkFreq();
	
	#if(OS_VERSION>=3000u)
		cnts = cpu_clk_freq/(CPU_INT32U)OSCfg_TickRate_Hz;
	#else
		cnts = cpu_clk_freq/(CPU_INT32U)OS_TICKS_PER_SEC;
	#endif
	OS_CPU_SysTickInit(cnts);
}



void BSP_Init(void)
{
	BSP_Tick_Init();
	MX_GPIO_Init();
}


#if (CPU_CFG_TS_TMR_EN == DEF_ENABLED)
void  CPU_TS_TmrInit (void)
{
    CPU_INT32U  cpu_clk_freq_hz;


    DEM_CR         |= (CPU_INT32U)DEM_CR_TRCENA;                /* Enable Cortex-M3's DWT CYCCNT reg.                   */
    DWT_CYCCNT      = (CPU_INT32U)0u;
    DWT_CR         |= (CPU_INT32U)DWT_CR_CYCCNTENA;

    cpu_clk_freq_hz = BSP_CPU_ClkFreq();
    CPU_TS_TmrFreqSet(cpu_clk_freq_hz);
}
#endif


#if (CPU_CFG_TS_TMR_EN == DEF_ENABLED)
CPU_TS_TMR  CPU_TS_TmrRd (void)
{
    return ((CPU_TS_TMR)DWT_CYCCNT);
}
#endif


#if (CPU_CFG_TS_32_EN == DEF_ENABLED)
CPU_INT64U  CPU_TS32_to_uSec (CPU_TS32  ts_cnts)
{
	CPU_INT64U  ts_us;
  CPU_INT64U  fclk_freq;

 
  fclk_freq = BSP_CPU_ClkFreq();
  ts_us     = ts_cnts / (fclk_freq / DEF_TIME_NBR_uS_PER_SEC);

  return (ts_us);
}
#endif
 
 
#if (CPU_CFG_TS_64_EN == DEF_ENABLED)
CPU_INT64U  CPU_TS64_to_uSec (CPU_TS64  ts_cnts)
{
	CPU_INT64U  ts_us;
	CPU_INT64U  fclk_freq;


  fclk_freq = BSP_CPU_ClkFreq();
  ts_us     = ts_cnts / (fclk_freq / DEF_TIME_NBR_uS_PER_SEC);
	
  return (ts_us);
}
#endif

mian.c

/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "gpio.h"
#include "usart.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include <includes.h>
#include "stm32f1xx_hal.h"
/* USER CODE END Includes */

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

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* task priority */
#define START_TASK_PRIO		3
#define LED0_TASK_PRIO		4
#define MSG_TASK_PRIO		5

/* task stack size	*/
#define START_STK_SIZE 		64
#define LED0_STK_SIZE 		64
#define MSG_STK_SIZE 64//If the size of the task heap is too large, an error will be reported, you can try to make it smaller

/* task stack */	
CPU_STK START_TASK_STK[START_STK_SIZE];
CPU_STK LED0_TASK_STK[LED0_STK_SIZE];
CPU_STK MSG_TASK_STK[MSG_STK_SIZE];
/* mission control block */
OS_TCB StartTaskTCB;
OS_TCB Led0TaskTCB;
OS_TCB MsgTaskTCB;
/* USER CODE END PD */

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

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

/* USER CODE BEGIN PV */

/* Task function definition */
void start_task(void *p_arg);
static  void  AppTaskCreate(void);
static  void  AppObjCreate(void);
static  void  led_pc13(void *p_arg);
static  void  send_msg(void *p_arg);
/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  /**Initializes the CPU, AHB and APB busses clocks 
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }
  /**Initializes the CPU, AHB and APB busses clocks 
  */
  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_DIV2;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
  {
    Error_Handler();
  }
}

/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{
	OS_ERR  err;
	OSInit(&err);
  HAL_Init();
	SystemClock_Config();
	//MX_GPIO_Init(); This is also initialized in the initialization of BSP
  MX_USART1_UART_Init();	
	/* Create a task */
	OSTaskCreate((OS_TCB     *)&StartTaskTCB,                /* Create the start task                                */
				 (CPU_CHAR   *)"start task",
				 (OS_TASK_PTR ) start_task,
				 (void       *) 0,
				 (OS_PRIO     ) START_TASK_PRIO,
				 (CPU_STK    *)&START_TASK_STK[0],
				 (CPU_STK_SIZE) START_STK_SIZE/10,
				 (CPU_STK_SIZE) START_STK_SIZE,
				 (OS_MSG_QTY  ) 0,
				 (OS_TICK     ) 0,
				 (void       *) 0,
				 (OS_OPT      )(OS_OPT_TASK_STK_CHK | OS_OPT_TASK_STK_CLR),
				 (OS_ERR     *)&err);
	/* Start the multitasking system and hand over control to uC/OS-III */
	OSStart(&err);            /* Start multitasking (i.e. give control to uC/OS-III). */
               
}


void start_task(void *p_arg)
{
	OS_ERR err;
	CPU_SR_ALLOC();
	p_arg = p_arg;
	
	/* YangJie add 2021.05.20*/
  BSP_Init();                                                   /* Initialize BSP functions */
  //CPU_Init();
  //Mem_Init();                                                 /* Initialize Memory Management Module */

#if OS_CFG_STAT_TASK_EN > 0u
   OSStatTaskCPUUsageInit(&err);  		//Statistical tasks                
#endif
	
#ifdef CPU_CFG_INT_DIS_MEAS_EN //If measurement interrupt off time is enabled
    CPU_IntDisMeasMaxCurReset();	
#endif

#if OS_CFG_SCHED_ROUND_ROBIN_EN //When using time slice rotation
	 //Enable the time slice round robin scheduling function, the length of the time slice is 1 system clock tick, that is, 1*5=5ms
	OSSchedRoundRobinCfg(DEF_ENABLED,1,&err);  
#endif		
	
	OS_CRITICAL_ENTER();	//enter the critical section
	/* Create LED0 task */
	OSTaskCreate((OS_TCB 	* )&Led0TaskTCB,		
				 (CPU_CHAR	* )"led_pc13", 		
                 (OS_TASK_PTR )led_pc13, 			
                 (void		* )0,					
                 (OS_PRIO	  )LED0_TASK_PRIO,     
                 (CPU_STK   * )&LED0_TASK_STK[0],	
                 (CPU_STK_SIZE)LED0_STK_SIZE/10,	
                 (CPU_STK_SIZE)LED0_STK_SIZE,		
                 (OS_MSG_QTY  )0,					
                 (OS_TICK	  )0,					
                 (void   	* )0,					
                 (OS_OPT      )OS_OPT_TASK_STK_CHK|OS_OPT_TASK_STK_CLR,
                 (OS_ERR 	* )&err);				
				 
	/* Create LED1 task */
	OSTaskCreate((OS_TCB 	* )&MsgTaskTCB,		
				 (CPU_CHAR	* )"send_msg", 		
                 (OS_TASK_PTR )send_msg, 			
                 (void		* )0,					
                 (OS_PRIO	  )MSG_TASK_PRIO,     	
                 (CPU_STK   * )&MSG_TASK_STK[0],	
                 (CPU_STK_SIZE)MSG_STK_SIZE/10,	
                 (CPU_STK_SIZE)MSG_STK_SIZE,		
                 (OS_MSG_QTY  )0,					
                 (OS_TICK	  )0,					
                 (void   	* )0,				
                 (OS_OPT      )OS_OPT_TASK_STK_CHK|OS_OPT_TASK_STK_CLR, 
                 (OS_ERR 	* )&err);
				 
	OS_TaskSuspend((OS_TCB*)&StartTaskTCB,&err);		//Suspend start task			 
	OS_CRITICAL_EXIT();	//enter the critical section
}
/**
  * Function: Start the task function body.
  * Input parameters: p_arg is the formal parameter passed when the task was created
  * Return value: None
  * Description: none
  */
static  void  led_pc13 (void *p_arg)
{
  OS_ERR      err;

  (void)p_arg;

  BSP_Init();                                                 /* Initialize BSP functions                             */
  CPU_Init();

  Mem_Init();                                                 /* Initialize Memory Management Module                  */

#if OS_CFG_STAT_TASK_EN > 0u
  OSStatTaskCPUUsageInit(&err);                               /* Compute CPU capacity with no task running            */
#endif

  CPU_IntDisMeasMaxCurReset();

  AppTaskCreate();                                            /* Create Application Tasks                             */

  AppObjCreate();                                             /* Create Application Objects                           */

  while (DEF_TRUE)
  {
		HAL_GPIO_WritePin(GPIOC,GPIO_PIN_13,GPIO_PIN_RESET);
		OSTimeDlyHMSM(0, 0, 0, 500,OS_OPT_TIME_HMSM_STRICT,&err);
		HAL_GPIO_WritePin(GPIOC,GPIO_PIN_13,GPIO_PIN_SET);
		OSTimeDlyHMSM(0, 0, 0, 500,OS_OPT_TIME_HMSM_STRICT,&err);
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}
static  void  send_msg (void *p_arg)
{
  OS_ERR      err;

  (void)p_arg;

  BSP_Init();                                                 /* Initialize BSP functions                             */
  CPU_Init();

  Mem_Init();                                                 /* Initialize Memory Management Module                  */

#if OS_CFG_STAT_TASK_EN > 0u
  OSStatTaskCPUUsageInit(&err);                               /* Compute CPU capacity with no task running            */
#endif

  CPU_IntDisMeasMaxCurReset();

  AppTaskCreate();                                            /* Create Application Tasks                             */

  AppObjCreate();                                             /* Create Application Objects                           */

  while (DEF_TRUE)
  {
			printf("hello world \r\n");
		OSTimeDlyHMSM(0, 0, 0, 500,OS_OPT_TIME_HMSM_STRICT,&err);
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}


/* USER CODE BEGIN 4 */
/**
  * Function: Create application tasks
  * Input parameters: p_arg is the formal parameter passed when the task was created
  * Return value: None
  * Description: none
  */
static  void  AppTaskCreate (void)
{
  
}


/**
  * Function: uCOSIII kernel object creation
  * Input parameters: none
  * Return value: None
  * Description: none
  */
static  void  AppObjCreate (void)
{

}

/* USER CODE END 4 */

/**
  * @brief  This function is executed in case of error occurrence.
  * @retval None
  */
void Error_Handler(void)
{
  /* USER CODE BEGIN Error_Handler_Debug */
  /* User can add his own implementation to report the HAL error return state */

  /* USER CODE END Error_Handler_Debug */
}

#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,
     tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

The .s file as shown in the figure below (if it is not added, it will be modified if it is different)

The .h file as shown in the figure below (add it if it is not available, modify it if it is different)



Since we use the printf function, we need to add the following code to the usart.c file to complete the printf redirection, remember to add #include "stdio.h"

/* USER CODE BEGIN 1 */
int fputc(int ch,FILE *f){
	HAL_UART_Transmit(&huart1,(uint8_t *)&ch,1,0xffff);
	return ch;
}
/* USER CODE END 1 */

Do some parameter configuration

3. According to the actual task, test the transplant effect

3.1 Task introduction

Build at least 3 tasks (tasks): two of them control the LED on and off in 1s and 3s cycles respectively; the other task sends "hello uc/OS! Welcome to RTOS" through the serial port in 2s cycles Mission environment!"

3.2 Write the code and complete the test

Add initialization PA3

void MX_GPIO_Init(void)
{

  GPIO_InitTypeDef GPIO_InitStruct = {0};

  /* GPIO Ports Clock Enable */
  __HAL_RCC_GPIOC_CLK_ENABLE();
  __HAL_RCC_GPIOD_CLK_ENABLE();
  __HAL_RCC_GPIOA_CLK_ENABLE();

  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(GPIOC, GPIO_PIN_13, GPIO_PIN_RESET);
	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_3, GPIO_PIN_RESET);


  /*Configure GPIO pin : PC13|PA3 */
  GPIO_InitStruct.Pin = GPIO_PIN_13|GPIO_PIN_3;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
	HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

}

Modify main.c

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* task priority */
#define START_TASK_PRIO		3
#define LED0_TASK_PRIO		4
#define MSG_TASK_PRIO		5
#define LED1_TASK_PRIO		6

/* task stack size	*/
#define START_STK_SIZE 		96
#define LED0_STK_SIZE 		64
#define MSG_STK_SIZE 		64
#define LED1_STK_SIZE 		64

/* task stack */	
CPU_STK START_TASK_STK[START_STK_SIZE];
CPU_STK LED0_TASK_STK[LED0_STK_SIZE];
CPU_STK MSG_TASK_STK[MSG_STK_SIZE];
CPU_STK LED1_TASK_STK[LED1_STK_SIZE];

/* mission control block */
OS_TCB StartTaskTCB;
OS_TCB Led0TaskTCB;
OS_TCB MsgTaskTCB;
OS_TCB Led1TaskTCB;

/* USER CODE END PD */

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

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

/* USER CODE BEGIN PV */

/* Task function definition */
void start_task(void *p_arg);
static  void  AppTaskCreate(void);
static  void  AppObjCreate(void);
static  void  led_pc13(void *p_arg);
static  void  send_msg(void *p_arg);
static  void  led_pa3(void *p_arg);
/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  /**Initializes the CPU, AHB and APB busses clocks 
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }
  /**Initializes the CPU, AHB and APB busses clocks 
  */
  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_DIV2;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
  {
    Error_Handler();
  }
}

/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{
	OS_ERR  err;
	OSInit(&err);
  HAL_Init();
	SystemClock_Config();
	//MX_GPIO_Init(); This is also initialized in the initialization of BSP
  MX_USART1_UART_Init();	
	/* Create a task */
	OSTaskCreate((OS_TCB     *)&StartTaskTCB,                /* Create the start task                                */
				 (CPU_CHAR   *)"start task",
				 (OS_TASK_PTR ) start_task,
				 (void       *) 0,
				 (OS_PRIO     ) START_TASK_PRIO,
				 (CPU_STK    *)&START_TASK_STK[0],
				 (CPU_STK_SIZE) START_STK_SIZE/10,
				 (CPU_STK_SIZE) START_STK_SIZE,
				 (OS_MSG_QTY  ) 0,
				 (OS_TICK     ) 0,
				 (void       *) 0,
				 (OS_OPT      )(OS_OPT_TASK_STK_CHK | OS_OPT_TASK_STK_CLR),
				 (OS_ERR     *)&err);
	/* Start the multitasking system and hand over control to uC/OS-III */
	OSStart(&err);            /* Start multitasking (i.e. give control to uC/OS-III). */
               
}


void start_task(void *p_arg)
{
	OS_ERR err;
	CPU_SR_ALLOC();
	p_arg = p_arg;
	
	/* YangJie add 2021.05.20*/
  BSP_Init();                                                   /* Initialize BSP functions */
  //CPU_Init();
  //Mem_Init();                                                 /* Initialize Memory Management Module */

#if OS_CFG_STAT_TASK_EN > 0u
   OSStatTaskCPUUsageInit(&err);  		//Statistical tasks                
#endif
	
#ifdef CPU_CFG_INT_DIS_MEAS_EN //If measurement interrupt off time is enabled
    CPU_IntDisMeasMaxCurReset();	
#endif

#if OS_CFG_SCHED_ROUND_ROBIN_EN //When using time slice rotation
	 //Enable the time slice round robin scheduling function, the length of the time slice is 1 system clock tick, that is, 1*5=5ms
	OSSchedRoundRobinCfg(DEF_ENABLED,1,&err);  
#endif		
	
	OS_CRITICAL_ENTER();	//enter the critical section
	/* Create LED0 task */
	OSTaskCreate((OS_TCB 	* )&Led0TaskTCB,		
				 (CPU_CHAR	* )"led_pc13", 		
                 (OS_TASK_PTR )led_pc13, 			
                 (void		* )0,					
                 (OS_PRIO	  )LED0_TASK_PRIO,     
                 (CPU_STK   * )&LED0_TASK_STK[0],	
                 (CPU_STK_SIZE)LED0_STK_SIZE/10,	
                 (CPU_STK_SIZE)LED0_STK_SIZE,		
                 (OS_MSG_QTY  )0,					
                 (OS_TICK	  )0,					
                 (void   	* )0,					
                 (OS_OPT      )OS_OPT_TASK_STK_CHK|OS_OPT_TASK_STK_CLR,
                 (OS_ERR 	* )&err);		

/* Create LED1 task */
	OSTaskCreate((OS_TCB 	* )&Led1TaskTCB,		
				 (CPU_CHAR	* )"led_pa3", 		
                 (OS_TASK_PTR )led_pa3, 			
                 (void		* )0,					
                 (OS_PRIO	  )LED1_TASK_PRIO,     
                 (CPU_STK   * )&LED1_TASK_STK[0],	
                 (CPU_STK_SIZE)LED1_STK_SIZE/10,	
                 (CPU_STK_SIZE)LED1_STK_SIZE,		
                 (OS_MSG_QTY  )0,					
                 (OS_TICK	  )0,					
                 (void   	* )0,					
                 (OS_OPT      )OS_OPT_TASK_STK_CHK|OS_OPT_TASK_STK_CLR,
                 (OS_ERR 	* )&err);										 
				 
	/* Create MSG task */
	OSTaskCreate((OS_TCB 	* )&MsgTaskTCB,		
				 (CPU_CHAR	* )"send_msg", 		
                 (OS_TASK_PTR )send_msg, 			
                 (void		* )0,					
                 (OS_PRIO	  )MSG_TASK_PRIO,     	
                 (CPU_STK   * )&MSG_TASK_STK[0],	
                 (CPU_STK_SIZE)MSG_STK_SIZE/10,	
                 (CPU_STK_SIZE)MSG_STK_SIZE,		
                 (OS_MSG_QTY  )0,					
                 (OS_TICK	  )0,					
                 (void   	* )0,				
                 (OS_OPT      )OS_OPT_TASK_STK_CHK|OS_OPT_TASK_STK_CLR, 
                 (OS_ERR 	* )&err);
				 
	OS_TaskSuspend((OS_TCB*)&StartTaskTCB,&err);		//Suspend start task			 
	OS_CRITICAL_EXIT();	//enter the critical section
}
/**
  * Function: Start the task function body.
  * Input parameters: p_arg is the formal parameter passed when the task was created
  * Return value: None
  * Description: none
  */
static  void  led_pc13 (void *p_arg)
{
  OS_ERR      err;

  (void)p_arg;

  BSP_Init();                                                 /* Initialize BSP functions                             */
  CPU_Init();

  Mem_Init();                                                 /* Initialize Memory Management Module                  */

#if OS_CFG_STAT_TASK_EN > 0u
  OSStatTaskCPUUsageInit(&err);                               /* Compute CPU capacity with no task running            */
#endif

  CPU_IntDisMeasMaxCurReset();

  AppTaskCreate();                                            /* Create Application Tasks                             */

  AppObjCreate();                                             /* Create Application Objects                           */

  while (DEF_TRUE)
  {
		HAL_GPIO_WritePin(GPIOC,GPIO_PIN_13,GPIO_PIN_RESET);
		OSTimeDlyHMSM(0, 0, 1, 0,OS_OPT_TIME_HMSM_STRICT,&err);
		HAL_GPIO_WritePin(GPIOC,GPIO_PIN_13,GPIO_PIN_SET);
		OSTimeDlyHMSM(0, 0, 1, 0,OS_OPT_TIME_HMSM_STRICT,&err);
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}

static  void  led_pa3 (void *p_arg)
{
  OS_ERR      err;

  (void)p_arg;

  BSP_Init();                                                 /* Initialize BSP functions                             */
  CPU_Init();

  Mem_Init();                                                 /* Initialize Memory Management Module                  */

#if OS_CFG_STAT_TASK_EN > 0u
  OSStatTaskCPUUsageInit(&err);                               /* Compute CPU capacity with no task running            */
#endif

  CPU_IntDisMeasMaxCurReset();

  AppTaskCreate();                                            /* Create Application Tasks                             */

  AppObjCreate();                                             /* Create Application Objects                           */

  while (DEF_TRUE)
  {
		HAL_GPIO_WritePin(GPIOA,GPIO_PIN_3,GPIO_PIN_RESET);
		OSTimeDlyHMSM(0, 0, 3, 0,OS_OPT_TIME_HMSM_STRICT,&err);
		HAL_GPIO_WritePin(GPIOA,GPIO_PIN_3,GPIO_PIN_SET);
		OSTimeDlyHMSM(0, 0, 3, 0,OS_OPT_TIME_HMSM_STRICT,&err);
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}

static  void  send_msg (void *p_arg)
{
  OS_ERR      err;

  (void)p_arg;

  BSP_Init();                                                 /* Initialize BSP functions                             */
  CPU_Init();

  Mem_Init();                                                 /* Initialize Memory Management Module                  */

#if OS_CFG_STAT_TASK_EN > 0u
  OSStatTaskCPUUsageInit(&err);                               /* Compute CPU capacity with no task running            */
#endif

  CPU_IntDisMeasMaxCurReset();

  AppTaskCreate();                                            /* Create Application Tasks                             */

  AppObjCreate();                                             /* Create Application Objects                           */

  while (DEF_TRUE)
  {
			printf("hello uc/OS \r\n");
		OSTimeDlyHMSM(0, 0, 2, 0,OS_OPT_TIME_HMSM_STRICT,&err);
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}


/* USER CODE BEGIN 4 */
/**
  * Function: Create application tasks
  * Input parameters: p_arg is the formal parameter passed when the task was created
  * Return value: None
  * Description: none
  */
static  void  AppTaskCreate (void)
{
  
}


/**
  * Function: uCOSIII kernel object creation
  * Input parameters: none
  * Return value: None
  * Description: none
  */
static  void  AppObjCreate (void)
{

}

/* USER CODE END 4 */

/**
  * @brief  This function is executed in case of error occurrence.
  * @retval None
  */
void Error_Handler(void)
{
  /* USER CODE BEGIN Error_Handler_Debug */
  /* User can add his own implementation to report the HAL error return state */

  /* USER CODE END Error_Handler_Debug */
}

#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,
     tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

Effect display (gif):

4. Summary

The actual process of porting the system looks cumbersome, but as long as you are careful, it is still very simple to do. The key point is not only to port the system, but to adapt to the way of writing new tasks in this system, because this is often the best way to write new tasks. practical way

5. Reference

http://t.csdn.cn/8BsDX

Tags: Java programming language

Posted by dunnsearch on Sun, 13 Nov 2022 12:09:00 +0300