mirror of
https://github.com/STMicroelectronics/STM32CubeF4.git
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273 lines
8.6 KiB
C
273 lines
8.6 KiB
C
/**
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******************************************************************************
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* @file FreeRTOS/FreeRTOS_Mail/Src/main.c
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* @author MCD Application Team
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* @brief Main program body
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2017 STMicroelectronics.
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* All rights reserved.</center></h2>
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*
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* This software component is licensed by ST under Ultimate Liberty license
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* SLA0044, the "License"; You may not use this file except in compliance with
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* the License. You may obtain a copy of the License at:
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* www.st.com/SLA0044
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "main.h"
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#include "cmsis_os.h"
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/* Private typedef -----------------------------------------------------------*/
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typedef struct
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{ /* Mail object structure */
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uint32_t var1; /* var1 is a uint32_t */
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uint32_t var2; /* var2 is a uint32_t */
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uint8_t var3; /* var3 is a uint8_t */
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} Amail_TypeDef;
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/* Private define ------------------------------------------------------------*/
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#define blckqSTACK_SIZE configMINIMAL_STACK_SIZE
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#define MAIL_SIZE (uint32_t) 1
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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osMailQId mailId;
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uint32_t ProducerValue1 = 0, ProducerValue2 = 0;
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uint8_t ProducerValue3 = 0;
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uint32_t ConsumerValue1 = 0, ConsumerValue2 = 0;
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uint8_t ConsumerValue3 = 0;
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/* Private function prototypes -----------------------------------------------*/
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/* Thread function that creates a mail and posts it on a mail queue. */
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static void MailQueueProducer (const void *argument);
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/* Thread function that receives mail , remove it from a mail queue and checks that
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it is the expected mail. */
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static void MailQueueConsumer (const void *argument);
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static void SystemClock_Config(void);
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/* Private functions ---------------------------------------------------------*/
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/**
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* @brief Main program
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* @param None
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* @retval None
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*/
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int main(void)
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{
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/* STM32F4xx HAL library initialization:
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- Configure the Flash prefetch
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- Systick timer is configured by default as source of time base, but user
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can eventually implement his proper time base source (a general purpose
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timer for example or other time source), keeping in mind that Time base
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duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
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handled in milliseconds basis.
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- Set NVIC Group Priority to 4
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- Low Level Initialization
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*/
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HAL_Init();
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/* Configure the System clock to 100 MHz */
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SystemClock_Config();
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/* Initialize LED1 and LED3 */
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BSP_LED_Init(LED1);
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BSP_LED_Init(LED3);
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/* Create the mail queue used by the two tasks to pass the struct Amail_TypeDef */
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osMailQDef(mail, MAIL_SIZE, Amail_TypeDef); /* Define mail queue */
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mailId = osMailCreate(osMailQ(mail), NULL); /* create mail queue */
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/* Note the producer has a lower priority than the consumer when the tasks are
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spawned. */
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osThreadDef(QCons, MailQueueConsumer, osPriorityBelowNormal, 0, blckqSTACK_SIZE);
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osThreadCreate(osThread(QCons), NULL);
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osThreadDef(QProd, MailQueueProducer, osPriorityBelowNormal, 0, blckqSTACK_SIZE);
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osThreadCreate(osThread(QProd), NULL);
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/* Start scheduler */
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osKernelStart ();
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/* We should never get here as control is now taken by the scheduler */
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for(;;);
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}
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/**
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* @brief Mail Producer Thread.
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* @param argument: Not used
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* @retval None
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*/
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static void MailQueueProducer(const void *argument)
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{
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Amail_TypeDef *pTMail;
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for(;;)
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{
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pTMail = osMailAlloc(mailId, osWaitForever); /* Allocate memory */
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pTMail->var1 = ProducerValue1; /* Set the mail content */
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pTMail->var2 = ProducerValue2;
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pTMail->var3 = ProducerValue3;
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if(osMailPut(mailId, pTMail) != osOK) /* Send Mail */
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{
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/* Toggle LED3 to indicate error */
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BSP_LED_Toggle(LED3);
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}
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else
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{
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/* Increment the variables we are going to post next time round. The
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consumer will expect the numbers to follow in numerical order. */
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++ProducerValue1;
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ProducerValue2 += 2;
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ProducerValue3 += 3;
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/* Toggle LED1 to indicate a correct number received */
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BSP_LED_Toggle(LED1);
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osDelay(250);
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}
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}
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}
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/**
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* @brief Mail Consumer Thread.
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* @param argument: Not used
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* @retval None
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*/
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static void MailQueueConsumer (const void *argument)
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{
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osEvent event;
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Amail_TypeDef *pRMail;
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for(;;)
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{
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/* Get the message from the queue */
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event = osMailGet(mailId, osWaitForever); /* wait for mail */
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if(event.status == osEventMail)
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{
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pRMail = event.value.p;
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if((pRMail->var1 != ConsumerValue1) || (pRMail->var2 != ConsumerValue2) || (pRMail->var3 != ConsumerValue3))
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{
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/* Catch-up. */
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ConsumerValue1 = pRMail->var1;
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ConsumerValue2 = pRMail->var2;
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ConsumerValue3 = pRMail->var3;
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/* Toggle LED3 to indicate error */
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BSP_LED_Toggle(LED3);
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}
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else
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{
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/* Calculate values we expect to remove from the mail queue next time
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round. */
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++ConsumerValue1;
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ConsumerValue2 += 2;
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ConsumerValue3 += 3;
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}
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osMailFree(mailId, pRMail); /* free memory allocated for mail */
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}
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}
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}
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/**
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* @brief System Clock Configuration
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* The system Clock is configured as follow :
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* System Clock source = PLL (HSE)
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* SYSCLK(Hz) = 100000000
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* HCLK(Hz) = 100000000
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* AHB Prescaler = 1
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* APB1 Prescaler = 2
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* APB2 Prescaler = 1
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* HSE Frequency(Hz) = 8000000
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* PLL_M = 8
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* PLL_N = 200
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* PLL_P = 2
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* PLL_Q = 7
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* PLL_R = 2
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* VDD(V) = 3.3
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* Main regulator output voltage = Scale1 mode
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* Flash Latency(WS) = 3
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* @param None
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* @retval None
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*/
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static void SystemClock_Config(void)
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{
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RCC_ClkInitTypeDef RCC_ClkInitStruct;
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RCC_OscInitTypeDef RCC_OscInitStruct;
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HAL_StatusTypeDef ret = HAL_OK;
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/* Enable Power Control clock */
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__HAL_RCC_PWR_CLK_ENABLE();
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/* The voltage scaling allows optimizing the power consumption when the device is
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clocked below the maximum system frequency, to update the voltage scaling value
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regarding system frequency refer to product datasheet. */
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__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
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/* Enable HSE Oscillator and activate PLL with HSE as source */
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
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RCC_OscInitStruct.HSEState = RCC_HSE_ON;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
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RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
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RCC_OscInitStruct.PLL.PLLM = 8;
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RCC_OscInitStruct.PLL.PLLN = 200;
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RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
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RCC_OscInitStruct.PLL.PLLQ = 7;
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RCC_OscInitStruct.PLL.PLLR = 2;
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ret = HAL_RCC_OscConfig(&RCC_OscInitStruct);
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if(ret != HAL_OK)
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{
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while(1) { ; }
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}
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/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
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clocks dividers */
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RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
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RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
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ret = HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_3);
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if(ret != HAL_OK)
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{
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while(1) { ; }
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}
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}
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#ifdef USE_FULL_ASSERT
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/**
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* @brief Reports the name of the source file and the source line number
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* where the assert_param error has occurred.
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* @param file: pointer to the source file name
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* @param line: assert_param error line source number
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* @retval None
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*/
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void assert_failed(uint8_t* file, uint32_t line)
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{
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/* User can add his own implementation to report the file name and line number,
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ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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/* Infinite loop */
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while (1)
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{}
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}
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#endif
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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