STM32CUBEIDE 滴答定时器->延时函数编写

jiangyy · 发表于 2020-11-3 13:59:19

本帖最后由 jiangyy 于 2021-3-25 13:29 编辑

1.滴答定时器中断配置，默认在HAL_Init(void)初始化了

HAL_StatusTypeDef HAL_Init(void)
{
/* Configure Flash prefetch, Instruction cache, Data cache */
#if (INSTRUCTION_CACHE_ENABLE != 0U)
__HAL_FLASH_INSTRUCTION_CACHE_ENABLE();
#endif /* INSTRUCTION_CACHE_ENABLE */
#if (DATA_CACHE_ENABLE != 0U)
__HAL_FLASH_DATA_CACHE_ENABLE();
#endif /* DATA_CACHE_ENABLE */
#if (PREFETCH_ENABLE != 0U)
__HAL_FLASH_PREFETCH_BUFFER_ENABLE();
#endif /* PREFETCH_ENABLE */
/* Set Interrupt Group Priority */
HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);
/* Use systick as time base source and configure 1ms tick (default clock after Reset is HSI) */
HAL_InitTick(TICK_INT_PRIORITY);//中断配置，最高
/* Init the low level hardware */
HAL_MspInit();
/* Return function status */
return HAL_OK;
}

复制代码

2.初始化系统时钟：

void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 4;
RCC_OscInitStruct.PLL.PLLN = 168;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 7;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses 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_DIV4;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK)
{
Error_Handler();
}
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_RTC;
PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_HSE_DIV8;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
{
Error_Handler();
}
}

复制代码

3.自定义一个延时函数：
3.1 bsp_delay.c

/*
* bsp_delay.c
*
* Created on: Aug 19, 2020
* Author: jiangyuanyuan
*/
#include "bsp_delay.h"
//初始化延迟函数
//当使用ucos的时候,此函数会初始化ucos的时钟节拍
//SYSTICK的时钟固定为AHB时钟
//SYSCLK:系统时钟频率
void delay_init(void)
{
HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000000); // 配置并启动系统滴答定时器
HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
}
//延时nus
void delay_us(uint32_t nus)
{
HAL_Delay(nus);
}
//延时nms
//nms:要延时的ms数
void delay_ms(uint16_t nms)
{
uint32_t i;
for(i=0;i<nms;i++) HAL_Delay(1000);
}
/****************************************************************************
* 名称: void Delay_us(u32 nus)
* 功能:延时nus
* 入口参数:药延时的微秒数
* 返回参数:无
* 说明:nus得值,不要大于798915us
****************************************************************************/
void Delay_us(uint32_t nus)
{
uint32_t i,j;
for(i = 0; i < nus; i++)
{
j=10; //change it for timing adjustment
while(j--)
{
__NOP(); // nop's may be added or removed for timing
}
}
}
void Delay_ms(uint16_t nms)
{
uint16_t i,j,k;
for(i = 0; i < nms; i++)
{
for(j = 0; j < 1000; j++)
{
k=10; //change it for timing adjustment
while(k--)
{
__NOP(); // nop's may be added or removed for timing
}
}
}
}
void delay_Xms(uint16_t nms,uint8_t Cnt)
{
uint8_t ucCnt = 0;
for(;ucCnt<Cnt;ucCnt++)
delay_ms(nms);
}

复制代码

3.2 bsp_delay.h

/*
* bsp_delay.h
*
* Created on: Aug 19, 2020
* Author: jiangyuanyuan
*/
#ifndef INC_BSP_DELAY_H_
#define INC_BSP_DELAY_H_
#include "gpio.h"
#include "stm32f4xx_hal.h"
#include "bsp_delay.h"
void delay_init(void);
void delay_ms(uint16_t nms);
void delay_us(uint32_t nus);
void Delay_us(uint32_t nus);
void Delay_ms(uint16_t nms);
#endif /* INC_BSP_delay_H_ */

复制代码

4.主函数main初始化

/* USER CODE BEGIN Header */
/**
******************************************************************************
* [url=home.php?mod=space&uid=175224]@file[/url] : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2020 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "adc.h"
#include "dac.h"
#include "dma.h"
#include "fatfs.h"
#include "rng.h"
#include "rtc.h"
#include "sdio.h"
#include "spi.h"
#include "tim.h"
#include "usart.h"
#include "usb_device.h"
#include "gpio.h"
#include "fsmc.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "stdio.h"
#include "bsp_sys.h"
#include "bsp_led.h"
#include "bsp_key.h"
#include "bsp_delay.h"
#include "bsp_tim3.h"
#include "bsp_errom.h"
#include "bsp_adc.h"
#include "bsp_dac.h"
#include "bsp_pwm.h"
#include "bsp_rtc.h"
#include "bsp_stmflash.h"
#include "bsp_w25q.h"
#include "bsp_fsmc.h"
#include "bsp_malloc.h"
#include "bsp_fatfs.h"
#include "rng.h"
#include "parameter.h"
/* 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 */
/* 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 */
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
int cnt = 0;
u16 dacval=0;
u8 key;
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
delay_init();
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_DMA_Init();
MX_TIM3_Init();
MX_USART1_UART_Init();
MX_RNG_Init();
MX_TIM4_Init();
MX_ADC1_Init();
MX_RTC_Init();
MX_DAC_Init();
MX_SPI1_Init();
MX_FSMC_Init();
MX_SDIO_SD_Init();
MX_FATFS_Init();
MX_USB_DEVICE_Init();
/* USER CODE BEGIN 2 */
W25QXX_Init();
HAL_TIM_Base_Start_IT(&htim3);
HAL_UART_Receive_DMA(&huart1, UsartType1.usartDMA_rxBuf, RECEIVELEN);
__HAL_UART_ENABLE_IT(&huart1, UART_IT_IDLE);
HAL_TIM_PWM_Start(&htim4,TIM_CHANNEL_1);
HAL_DAC_Start(&hdac,DAC_CHANNEL_1);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
handle_Param();
HAL_DAC_SetValue(&hdac,DAC_CHANNEL_1,DAC_ALIGN_12B_R,0);//初始值为0
W25QXX_Test();
fsmc_sram_test();
// stmflash_test();
my_mem_init(SRAMEX); //初始化外部内存池
Malloc_Test();
SD_Auto_NewFolder();
while (1)
{
cnt = RNG_Get_RandomRange(1,10);
// MRTC_Get();
Pwm_Test();
key=KEY_Scan(0);
if(key==KEY0_PRES)
{
if(dacval<3300)dacval+=300;
DAC1_Set_Vol(dacval);
}else if(key==KEY2_PRES)
{
if(dacval>=300)dacval-=300;
else dacval=0;
DAC1_Set_Vol(dacval);
}
Adc_printf();
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
delay_ms(1000);
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 4;
RCC_OscInitStruct.PLL.PLLN = 168;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 7;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses 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_DIV4;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK)
{
Error_Handler();
}
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_RTC;
PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_HSE_DIV8;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
{
Error_Handler();
}
}
/* USER CODE BEGIN 4 */
/* 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 */
printf("HAL error!\r\n");
/* 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.
* [url=home.php?mod=space&uid=271674]@param[/url] 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****/