/******************************************************************************
Controlling Three pins by Task Management using FreeRTOS
*******************************************************************************/
//
// Define Thread IDs
//
osThreadId_t LEDSTaskHandle; // Slow LED
osThreadId_t LEDMTaskHandle; // Medium LED
osThreadId_t LEDFTaskHandle; // Fast LED
//
// Slow LED task. Flash every second
//
void
StartLEDSTask (void *argument)
{
for (;;)
{
HAL_GPIO_TogglePin (GPIOC, LEDSLOW_Pin);
osDelay (1000);
}
}
//
// Medium LED task. Flash every 500ms
//
void
StartLEDMTask (void *argument)
{
for (;;)
{
HAL_GPIO_TogglePin (GPIOC, LEDMEDIUM_Pin);
osDelay (500);
}
}
//
// Fast LED task. Flash every 250ms
//
void
StartLEDFTask (void *argument)
{
for (;;)
{
HAL_GPIO_TogglePin (GPIOC, LEDFAST_Pin);
osDelay (250);
}
}
void SystemClock_Config (void);
static void MX_GPIO_Init (void);
void StartDefaultTask (void *argument);
//
// Start of main program
//
int
main (void)
{
HAL_Init ();
SystemClock_Config ();
MX_GPIO_Init ();
//
//Slow LED Task attributes
//
const osThreadAttr_t ESTask_attributes = {
.name = <<LEDSTask >>.priority = (osPriority_t) osPriorityNormal,
.stack_size = 128 * 4
};
//
// Medium LED Task Attributes
//
const osThreadAttr_t LEDMTask_attributes = {
.name = <<LEDMTask >>,
.priority = (osPriority_t) osPriorityNormal,
.stack_size = 128 * 4
};
//
// Fast LED Task Attribute
//
Const osThreadAttr_t LEDFTask_Attributes = {
.name = <<LEDFTask >>,
.priority = (osPriority_t) osPriorityNormal,
.stack_size = 128 * 4
};
/*Init Scheduler */
osKernelInitialize ();
/*Creation of Tasks */
LEDSTaskHandle = osThreadNew (StartLEDSTask, NULL, &LEDSTask_Attributes);
LEDMTaskHandle = osThreadNew (StartLEDMTask, NULL, &LEDMTask_Attributes);
LEDFTaskHandle = osThreadNew (StartLEDFTask, NULL, &LEDFTask_Attributes);
/* Start scheduler */
osKernelStart ();
while (1)
{
}
}
void
SystemClock_Config (void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {
0
};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {
0
};
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HST;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 2;
RCC_OscInitStruct.PLL.PLLN = 20;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV7;
RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2;
RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;
if (HAL_RCC_OscConfig (&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler ();
}
RCC_ClLkInitStruct.ClockType =
RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_PCL1 |
RCC_CLOCKTYPE_PCLK2;
RCC_ClUkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_CLkInitStruct.APBICLKDivider = RCC_HCLK_DIV1;
RCC_CLkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig (&RCC_ClkInitStruct, FLASH_LATENCY_4) != HAL_OK)
{
Error_Handler ();
}
if (HAL_PWREx_ControlVoltageScaling (PWR_REGULATOR_VOLTAGE_SCALE1) !=
HAL_OK)
{
Error_Handler ();
}
}
static void
MX_GPIO_Init (void)
{
GPIO_InitTypeDef GPIO_InitStruct = { 0 };
/* GPIO Ports Clock Enable */
__HAL _RCC_GPIOC_CLK_ENABLE ();
/*Configure GPIO pin output Level */
HAL_GPIO_WritePin (GPIOC, LEDSLOW_Pin | LEDMEDIUM_Pin;
LEDFAST_Pin | GPIO_PIN_RESET);
/* Configure GPIO pins : LEDSLOW_Pin LEDMEDIUM_pin LEDFAST_pin */
GPIO_InitStruct.Pin = LEDSLOW_Pin | LEDMEDIUM_Pin | LEDFAST_Pin;
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);
void Error_Handler (void)
{
}
#ifdef USE_FULL_ASSERT
void assert_failed (uint8_t * file, uint32_t line)
{
}
#endif
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