mirror of
https://github.com/STMicroelectronics/STM32CubeF3.git
synced 2025-05-03 22:17:07 +08:00
298 lines
9.8 KiB
C
298 lines
9.8 KiB
C
/**
|
|
******************************************************************************
|
|
* @file FreeRTOS\FreeRTOS_LowPower\Src\main.c
|
|
* @author MCD Application Team
|
|
* @brief Main program body
|
|
******************************************************************************
|
|
* @attention
|
|
*
|
|
* <h2><center>© Copyright (c) 2016 STMicroelectronics.
|
|
* All rights reserved.</center></h2>
|
|
*
|
|
* This software component is licensed by ST under Ultimate Liberty license
|
|
* SLA0044, the "License"; You may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at:
|
|
* www.st.com/SLA0044
|
|
*
|
|
******************************************************************************
|
|
*/
|
|
|
|
/* Includes ------------------------------------------------------------------*/
|
|
#include "main.h"
|
|
#include "cmsis_os.h"
|
|
|
|
/* Private typedef -----------------------------------------------------------*/
|
|
/* Private define ------------------------------------------------------------*/
|
|
/* Private macro -------------------------------------------------------------*/
|
|
#define blckqSTACK_SIZE configMINIMAL_STACK_SIZE
|
|
#define QUEUE_SIZE (uint32_t) 1
|
|
/* Private variables ---------------------------------------------------------*/
|
|
osMessageQId osQueue;
|
|
|
|
/* The number of items the queue can hold. This is 1 as the Rx task will
|
|
remove items as they are added so the Tx task should always find the queue
|
|
empty. */
|
|
#define QUEUE_LENGTH (1)
|
|
|
|
/* The rate at which the Tx task sends to the queue. */
|
|
#define TX_DELAY (500)
|
|
|
|
/* The value that is sent from the Tx task to the Rx task on the queue. */
|
|
#define QUEUED_VALUE (100)
|
|
|
|
/* The length of time the LED will remain on for. It is on just long enough
|
|
to be able to see with the human eye so as not to distort the power readings too
|
|
much. */
|
|
#define LED_TOGGLE_DELAY (20)
|
|
|
|
/* Private function prototypes -----------------------------------------------*/
|
|
static void QueueReceiveThread(const void *argument);
|
|
static void QueueSendThread(const void *argument);
|
|
static void GPIO_ConfigAN(void);
|
|
void SystemClock_Config(void);
|
|
|
|
/* Private functions ---------------------------------------------------------*/
|
|
|
|
/**
|
|
* @brief Main program.
|
|
* @param None
|
|
* @retval None
|
|
*/
|
|
int main(void)
|
|
{
|
|
/* STM32F3xx HAL library initialization:
|
|
- Configure the Flash prefetch
|
|
- Systick timer is configured by default as source of time base, but user
|
|
can eventually implement his proper time base source (a general purpose
|
|
timer for example or other time source), keeping in mind that Time base
|
|
duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
|
|
handled in milliseconds basis.
|
|
- Set NVIC Group Priority to 4
|
|
- Low Level Initialization
|
|
*/
|
|
HAL_Init();
|
|
|
|
/* Configure the System clock to 72 MHz */
|
|
SystemClock_Config();
|
|
|
|
/* Configure GPIO's to AN to reduce power consumption */
|
|
GPIO_ConfigAN();
|
|
|
|
/* Initialize LED */
|
|
BSP_LED_Init(LED1);
|
|
|
|
/* Create the queue used by the two threads */
|
|
osMessageQDef(osqueue, QUEUE_LENGTH, uint16_t);
|
|
osQueue = osMessageCreate(osMessageQ(osqueue), NULL);
|
|
|
|
/* Note the Tx has a lower priority than the Rx when the threads are
|
|
spawned. */
|
|
osThreadDef(RxThread, QueueReceiveThread, osPriorityNormal, 0, configMINIMAL_STACK_SIZE);
|
|
osThreadCreate(osThread(RxThread), NULL);
|
|
|
|
osThreadDef(TxThread, QueueSendThread, osPriorityBelowNormal, 0, configMINIMAL_STACK_SIZE);
|
|
osThreadCreate(osThread(TxThread), NULL);
|
|
|
|
/* Start scheduler */
|
|
osKernelStart();
|
|
|
|
/* We should never get here as control is now taken by the scheduler */
|
|
for (;;);
|
|
|
|
}
|
|
|
|
/**
|
|
* @brief Message Queue Producer Thread.
|
|
* @param argument: Not used
|
|
* @retval None
|
|
*/
|
|
static void QueueSendThread(const void *argument)
|
|
{
|
|
for (;;)
|
|
{
|
|
/* Place this thread into the blocked state until it is time to run again.
|
|
The kernel will place the MCU into the Retention low power sleep state
|
|
when the idle thread next runs. */
|
|
osDelay(TX_DELAY);
|
|
|
|
/* Send to the queue - causing the queue receive thread to flash its LED.
|
|
It should not be necessary to block on the queue send because the Rx
|
|
thread will already have removed the last queued item. */
|
|
osMessagePut(osQueue, (uint32_t)QUEUED_VALUE, 0);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Message Queue Consumer Thread.
|
|
* @param argument: Not used
|
|
* @retval None
|
|
*/
|
|
static void QueueReceiveThread(const void *argument)
|
|
{
|
|
osEvent event;
|
|
|
|
for (;;)
|
|
{
|
|
/* Wait until something arrives in the queue. */
|
|
event = osMessageGet(osQueue, osWaitForever);
|
|
|
|
/* To get here something must have arrived, but is it the expected
|
|
value? If it is, turn the LED on for a short while. */
|
|
if (event.status == osEventMessage)
|
|
{
|
|
if (event.value.v == QUEUED_VALUE)
|
|
{
|
|
BSP_LED_On(LED1);
|
|
osDelay(LED_TOGGLE_DELAY);
|
|
BSP_LED_Off(LED1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Pre Sleep Processing
|
|
* @param ulExpectedIdleTime: Expected time in idle state
|
|
* @retval None
|
|
*/
|
|
void PreSleepProcessing(uint32_t * ulExpectedIdleTime)
|
|
{
|
|
/* Called by the kernel before it places the MCU into a sleep mode because
|
|
configPRE_SLEEP_PROCESSING() is #defined to PreSleepProcessing().
|
|
|
|
NOTE: Additional actions can be taken here to get the power consumption
|
|
even lower. For example, peripherals can be turned off here, and then back
|
|
on again in the post sleep processing function. For maximum power saving
|
|
ensure all unused pins are in their lowest power state. */
|
|
|
|
/*
|
|
(*ulExpectedIdleTime) is set to 0 to indicate that PreSleepProcessing contains
|
|
its own wait for interrupt or wait for event instruction and so the kernel vPortSuppressTicksAndSleep
|
|
function does not need to execute the wfi instruction
|
|
*/
|
|
*ulExpectedIdleTime = 0;
|
|
|
|
/*Enter to sleep Mode using the HAL function HAL_PWR_EnterSLEEPMode with WFI instruction*/
|
|
HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI);
|
|
}
|
|
|
|
/**
|
|
* @brief Post Sleep Processing
|
|
* @param ulExpectedIdleTime: Not used
|
|
* @retval None
|
|
*/
|
|
void PostSleepProcessing(uint32_t * ulExpectedIdleTime)
|
|
{
|
|
/* Called by the kernel when the MCU exits a sleep mode because
|
|
configPOST_SLEEP_PROCESSING is #defined to PostSleepProcessing(). */
|
|
|
|
/* Avoid compiler warnings about the unused parameter. */
|
|
(void) ulExpectedIdleTime;
|
|
}
|
|
|
|
/**
|
|
* @brief Configure all GPIO's to AN to reduce the power consumption
|
|
* @param None
|
|
* @retval None
|
|
*/
|
|
static void GPIO_ConfigAN(void)
|
|
{
|
|
GPIO_InitTypeDef GPIO_InitStruct;
|
|
|
|
/* Configure all GPIO as analog to reduce current consumption on non used IOs */
|
|
/* Enable GPIOs clock */
|
|
__HAL_RCC_GPIOA_CLK_ENABLE();
|
|
__HAL_RCC_GPIOB_CLK_ENABLE();
|
|
__HAL_RCC_GPIOC_CLK_ENABLE();
|
|
__HAL_RCC_GPIOD_CLK_ENABLE();
|
|
__HAL_RCC_GPIOE_CLK_ENABLE();
|
|
__HAL_RCC_GPIOF_CLK_ENABLE();
|
|
|
|
GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
|
|
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
|
GPIO_InitStruct.Pin = GPIO_PIN_All;
|
|
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
|
|
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
|
|
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
|
|
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
|
|
HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
|
|
HAL_GPIO_Init(GPIOF, &GPIO_InitStruct);
|
|
|
|
/* Disable GPIOs clock */
|
|
__HAL_RCC_GPIOA_CLK_DISABLE();
|
|
__HAL_RCC_GPIOB_CLK_DISABLE();
|
|
__HAL_RCC_GPIOC_CLK_DISABLE();
|
|
__HAL_RCC_GPIOD_CLK_DISABLE();
|
|
__HAL_RCC_GPIOE_CLK_DISABLE();
|
|
__HAL_RCC_GPIOF_CLK_DISABLE();
|
|
}
|
|
|
|
/**
|
|
* @brief System Clock Configuration
|
|
* The system Clock is configured as follow :
|
|
* System Clock source = PLL (HSE)
|
|
* SYSCLK(Hz) = 72000000
|
|
* HCLK(Hz) = 72000000
|
|
* AHB Prescaler = 1
|
|
* APB1 Prescaler = 2
|
|
* APB2 Prescaler = 1
|
|
* HSE Frequency(Hz) = 8000000
|
|
* HSE PREDIV = 1
|
|
* PLLMUL = RCC_PLL_MUL9 (9)
|
|
* Flash Latency(WS) = 2
|
|
* @param None
|
|
* @retval None
|
|
*/
|
|
void SystemClock_Config(void)
|
|
{
|
|
RCC_ClkInitTypeDef RCC_ClkInitStruct;
|
|
RCC_OscInitTypeDef RCC_OscInitStruct;
|
|
|
|
/* Enable HSE Oscillator and activate PLL with HSE as source */
|
|
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
|
|
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
|
|
RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
|
|
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)
|
|
{
|
|
/* Initialization Error */
|
|
while(1);
|
|
}
|
|
|
|
/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
|
|
clocks dividers */
|
|
RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | 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)
|
|
{
|
|
/* Initialization Error */
|
|
while(1);
|
|
}
|
|
}
|
|
#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 can add his own implementation to report the file name and line number,
|
|
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
|
|
|
|
/* Infinite loop */
|
|
while (1)
|
|
{}
|
|
}
|
|
#endif
|
|
|
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|