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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file app_threadx.c
* @author MCD Application Team
* @brief ThreadX applicative file
******************************************************************************
* @attention
*
* Copyright (c) 2021 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 "app_threadx.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
/* 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 PV */
TX_THREAD MainThread;
TX_THREAD ThreadOne;
TX_THREAD ThreadTwo;
TX_EVENT_FLAGS_GROUP EventFlag;
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
/* USER CODE BEGIN PFP */
void ThreadOne_Entry(ULONG thread_input);
void ThreadTwo_Entry(ULONG thread_input);
void MainThread_Entry(ULONG thread_input);
void App_Delay(uint32_t Delay);
/* USER CODE END PFP */
/**
* @brief Application ThreadX Initialization.
* @param memory_ptr: memory pointer
* @retval int
*/
UINT App_ThreadX_Init(VOID *memory_ptr)
{
UINT ret = TX_SUCCESS;
TX_BYTE_POOL *byte_pool = (TX_BYTE_POOL*)memory_ptr;
/* USER CODE BEGIN App_ThreadX_Init */
CHAR *pointer;
/* Allocate the stack for MainThread. */
if (tx_byte_allocate(byte_pool, (VOID **) &pointer,
APP_STACK_SIZE, TX_NO_WAIT) != TX_SUCCESS)
{
ret = TX_POOL_ERROR;
}
/* Create MainThread. */
if (tx_thread_create(&MainThread, "Main Thread", MainThread_Entry, 0,
pointer, APP_STACK_SIZE,
MAIN_THREAD_PRIO, MAIN_THREAD_PREEMPTION_THRESHOLD,
TX_NO_TIME_SLICE, TX_AUTO_START) != TX_SUCCESS)
{
ret = TX_THREAD_ERROR;
}
/* Allocate the stack for ThreadOne. */
if (tx_byte_allocate(byte_pool, (VOID **) &pointer,
APP_STACK_SIZE, TX_NO_WAIT) != TX_SUCCESS)
{
ret = TX_POOL_ERROR;
}
/* Create ThreadOne. */
if (tx_thread_create(&ThreadOne, "Thread One", ThreadOne_Entry, 0,
pointer, APP_STACK_SIZE,
THREAD_ONE_PRIO, THREAD_ONE_PREEMPTION_THRESHOLD,
TX_NO_TIME_SLICE, TX_AUTO_START) != TX_SUCCESS)
{
ret = TX_THREAD_ERROR;
}
/* Allocate the stack for ThreadTwo. */
if (tx_byte_allocate(byte_pool, (VOID **) &pointer,
APP_STACK_SIZE, TX_NO_WAIT) != TX_SUCCESS)
{
ret = TX_POOL_ERROR;
}
/* Create ThreadTwo. */
if (tx_thread_create(&ThreadTwo, "Thread Two", ThreadTwo_Entry, 0,
pointer, APP_STACK_SIZE,
THREAD_TWO_PRIO, THREAD_TWO_PREEMPTION_THRESHOLD,
TX_NO_TIME_SLICE, TX_AUTO_START) != TX_SUCCESS)
{
ret = TX_THREAD_ERROR;
}
/* Create the event flags group. */
if (tx_event_flags_create(&EventFlag, "Event Flag") != TX_SUCCESS)
{
ret = TX_GROUP_ERROR;
}
/* USER CODE END App_ThreadX_Init */
return ret;
}
/**
* @brief MX_ThreadX_Init
* @param None
* @retval None
*/
void MX_ThreadX_Init(void)
{
/* USER CODE BEGIN Before_Kernel_Start */
/* USER CODE END Before_Kernel_Start */
tx_kernel_enter();
/* USER CODE BEGIN Kernel_Start_Error */
/* USER CODE END Kernel_Start_Error */
}
/* USER CODE BEGIN 1 */
/**
* @brief Function implementing the MainThread thread.
* @param thread_input: Not used
* @retval None
*/
void MainThread_Entry(ULONG thread_input)
{
UINT old_prio = 0;
UINT old_pre_threshold = 0;
ULONG actual_flags = 0;
uint8_t count = 0;
(void) thread_input;
while (count < 3)
{
count++;
if (tx_event_flags_get(&EventFlag, THREAD_ONE_EVT, TX_OR_CLEAR,
&actual_flags, TX_WAIT_FOREVER) != TX_SUCCESS)
{
Error_Handler();
}
else
{
/* Update the priority and preemption threshold of ThreadTwo
to allow the preemption of ThreadOne */
tx_thread_priority_change(&ThreadTwo, NEW_THREAD_TWO_PRIO, &old_prio);
tx_thread_preemption_change(&ThreadTwo, NEW_THREAD_TWO_PREEMPTION_THRESHOLD, &old_pre_threshold);
if (tx_event_flags_get(&EventFlag, THREAD_TWO_EVT, TX_OR_CLEAR,
&actual_flags, TX_WAIT_FOREVER) != TX_SUCCESS)
{
Error_Handler();
}
else
{
/* Reset the priority and preemption threshold of ThreadTwo */
tx_thread_priority_change(&ThreadTwo, THREAD_TWO_PRIO, &old_prio);
tx_thread_preemption_change(&ThreadTwo, THREAD_TWO_PREEMPTION_THRESHOLD, &old_pre_threshold);
}
}
}
/* Destroy ThreadOne and ThreadTwo */
tx_thread_terminate(&ThreadOne);
tx_thread_terminate(&ThreadTwo);
/* Infinite loop */
while(1)
{
BSP_LED_Toggle(LED_GREEN);
/* Thread sleep for 1s */
tx_thread_sleep(100);
}
}
/**
* @brief Function implementing the ThreadOne thread.
* @param thread_input: Not used
* @retval None
*/
void ThreadOne_Entry(ULONG thread_input)
{
(void) thread_input;
uint8_t count = 0;
/* Infinite loop */
while(1)
{
BSP_LED_Toggle(LED_GREEN);
/* Delay for 500ms (App_Delay is used to avoid context change). */
App_Delay(50);
count ++;
if (count == 10)
{
count = 0;
if (tx_event_flags_set(&EventFlag, THREAD_ONE_EVT, TX_OR) != TX_SUCCESS)
{
Error_Handler();
}
}
}
}
/**
* @brief Function implementing the ThreadTwo thread.
* @param thread_input: Not used
* @retval None
*/
void ThreadTwo_Entry(ULONG thread_input)
{
(void) thread_input;
uint8_t count = 0;
/* Infinite loop */
while (1)
{
BSP_LED_Toggle(LED_GREEN);
/* Delay for 200ms (App_Delay is used to avoid context change). */
App_Delay(20);
count ++;
if (count == 25)
{
count = 0;
if (tx_event_flags_set(&EventFlag, THREAD_TWO_EVT, TX_OR) != TX_SUCCESS)
{
Error_Handler();
}
}
}
}
/**
* @brief Application Delay function.
* @param Delay : number of ticks to wait
* @retval None
*/
void App_Delay(uint32_t Delay)
{
UINT initial_time = tx_time_get();
while ((tx_time_get() - initial_time) < Delay);
}
/* USER CODE END 1 */
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