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删除RTC，改用TIM进行非中断定时时间戳

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不吃油炸鸡
2026-02-02 10:37:50 +08:00
parent 68d900e3ea
commit 508718358a
22 changed files with 25405 additions and 35195 deletions
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8
Power_Pico/Core/Src/main.c
View File

@@ -22,7 +22,6 @@
#include "adc.h"
#include "dma.h"
#include "i2c.h"
#include "rtc.h"
#include "spi.h"
#include "tim.h"
#include "usart.h"
@@ -75,7 +74,7 @@ int main(void)
/* USER CODE BEGIN 1 */
//this must set same as keil setting
SCB->VTOR = FLASH_BASE + 0x0000C000U;
SCB->VTOR = FLASH_BASE + 0x00000000U;
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
@@ -104,7 +103,7 @@ int main(void)
MX_SPI2_Init();
MX_I2C1_Init();
MX_TIM2_Init();
MX_RTC_Init();
MX_TIM5_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
@@ -148,10 +147,9 @@ void SystemClock_Config(void)
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI|RCC_OSCILLATORTYPE_LSI;
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.LSIState = RCC_LSI_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;

160
Power_Pico/Core/Src/rtc.c
View File

@@ -1,160 +0,0 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file rtc.c
* @brief This file provides code for the configuration
* of the RTC instances.
******************************************************************************
* @attention
*
* Copyright (c) 2025 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 "rtc.h"
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
RTC_HandleTypeDef hrtc;
/* RTC init function */
void MX_RTC_Init(void)
{
/* USER CODE BEGIN RTC_Init 0 */
/* USER CODE END RTC_Init 0 */
/* USER CODE BEGIN RTC_Init 1 */
/* USER CODE END RTC_Init 1 */
/** Initialize RTC Only
*/
hrtc.Instance = RTC;
hrtc.Init.HourFormat = RTC_HOURFORMAT_24;
hrtc.Init.AsynchPrediv = 127;
hrtc.Init.SynchPrediv = 255;
hrtc.Init.OutPut = RTC_OUTPUT_DISABLE;
hrtc.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;
hrtc.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN;
if (HAL_RTC_Init(&hrtc) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN RTC_Init 2 */
/* USER CODE END RTC_Init 2 */
}
void HAL_RTC_MspInit(RTC_HandleTypeDef* rtcHandle)
{
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
if(rtcHandle->Instance==RTC)
{
/* USER CODE BEGIN RTC_MspInit 0 */
/* USER CODE END RTC_MspInit 0 */
/** Initializes the peripherals clock
*/
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_RTC;
PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSI;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
{
Error_Handler();
}
/* RTC clock enable */
__HAL_RCC_RTC_ENABLE();
/* USER CODE BEGIN RTC_MspInit 1 */
/* USER CODE END RTC_MspInit 1 */
}
}
void HAL_RTC_MspDeInit(RTC_HandleTypeDef* rtcHandle)
{
if(rtcHandle->Instance==RTC)
{
/* USER CODE BEGIN RTC_MspDeInit 0 */
/* USER CODE END RTC_MspDeInit 0 */
/* Peripheral clock disable */
__HAL_RCC_RTC_DISABLE();
/* USER CODE BEGIN RTC_MspDeInit 1 */
/* USER CODE END RTC_MspDeInit 1 */
}
}
/* USER CODE BEGIN 1 */
// 存储参考时间的时间戳（秒数）
static uint32_t s_ReferenceTimestamp = 0;
/**
* @brief 设定参考时间：从现在开始计时
* 调用此函数后，计时器清零，重新开始
*/
void SetReferenceTime(void)
{
RTC_TimeTypeDef sTime = {0};
RTC_DateTypeDef sDate = {0};
// 获取当前RTC时间
HAL_RTC_GetTime(&hrtc, &sTime, RTC_FORMAT_BIN);
HAL_RTC_GetDate(&hrtc, &sDate, RTC_FORMAT_BIN);
// 转换为总秒数（简化计算，仅用于计时差）
s_ReferenceTimestamp =
(sDate.Year * 365 + sDate.Month * 31 + sDate.Date) * 24 * 3600 +
sTime.Hours * 3600 +
sTime.Minutes * 60 +
sTime.Seconds;
}
/**
* @brief 获取从参考时间到现在经过的时间（时:分:秒）
* @param hours [out] 经过的小时数
* @param minutes [out] 经过的分钟数
* @param seconds [out] 经过的秒数
*/
void GetElapsedTime_HMS(uint8_t *hours, uint8_t *minutes, uint8_t *seconds)
{
RTC_TimeTypeDef sTime = {0};
RTC_DateTypeDef sDate = {0};
uint32_t currentTimestamp, elapsed;
// 获取当前时间并转为秒数
HAL_RTC_GetTime(&hrtc, &sTime, RTC_FORMAT_BIN);
HAL_RTC_GetDate(&hrtc, &sDate, RTC_FORMAT_BIN);
uint32_t nowSeconds =
(sDate.Year * 365 + sDate.Month * 31 + sDate.Date) * 24 * 3600 +
sTime.Hours * 3600 +
sTime.Minutes * 60 +
sTime.Seconds;
// 计算经过的秒数
elapsed = nowSeconds - s_ReferenceTimestamp;
// 转换为 时:分:秒
*seconds = elapsed % 60;
*minutes = (elapsed / 60) % 60;
*hours = (elapsed / 3600);
}
/* USER CODE END 1 */

116
Power_Pico/Core/Src/tim.c
View File

@@ -22,11 +22,17 @@
/* USER CODE BEGIN 0 */
// 64位总微秒计数器
static volatile uint64_t g_total_microseconds = 0;
// 上一次读取的TIM5计数值
static volatile uint32_t g_last_tim_value = 0;
/* USER CODE END 0 */
TIM_HandleTypeDef htim1;
TIM_HandleTypeDef htim2;
TIM_HandleTypeDef htim4;
TIM_HandleTypeDef htim5;
/* TIM1 init function */
void MX_TIM1_Init(void)
@@ -172,6 +178,49 @@ void MX_TIM4_Init(void)
/* USER CODE END TIM4_Init 2 */
HAL_TIM_MspPostInit(&htim4);
}
/* TIM5 init function */
void MX_TIM5_Init(void)
{
/* USER CODE BEGIN TIM5_Init 0 */
/* USER CODE END TIM5_Init 0 */
TIM_MasterConfigTypeDef sMasterConfig = {0};
TIM_OC_InitTypeDef sConfigOC = {0};
/* USER CODE BEGIN TIM5_Init 1 */
/* USER CODE END TIM5_Init 1 */
htim5.Instance = TIM5;
htim5.Init.Prescaler = 95;
htim5.Init.CounterMode = TIM_COUNTERMODE_UP;
htim5.Init.Period = 4294967295;
htim5.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim5.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_PWM_Init(&htim5) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim5, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
sConfigOC.OCMode = TIM_OCMODE_PWM1;
sConfigOC.Pulse = 0;
sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
if (HAL_TIM_PWM_ConfigChannel(&htim5, &sConfigOC, TIM_CHANNEL_1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM5_Init 2 */
/* USER CODE END TIM5_Init 2 */
}
void HAL_TIM_PWM_MspInit(TIM_HandleTypeDef* tim_pwmHandle)
@@ -203,6 +252,17 @@ void HAL_TIM_PWM_MspInit(TIM_HandleTypeDef* tim_pwmHandle)
/* USER CODE END TIM4_MspInit 1 */
}
else if(tim_pwmHandle->Instance==TIM5)
{
/* USER CODE BEGIN TIM5_MspInit 0 */
/* USER CODE END TIM5_MspInit 0 */
/* TIM5 clock enable */
__HAL_RCC_TIM5_CLK_ENABLE();
/* USER CODE BEGIN TIM5_MspInit 1 */
/* USER CODE END TIM5_MspInit 1 */
}
}
void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* tim_baseHandle)
@@ -296,6 +356,17 @@ void HAL_TIM_PWM_MspDeInit(TIM_HandleTypeDef* tim_pwmHandle)
/* USER CODE END TIM4_MspDeInit 1 */
}
else if(tim_pwmHandle->Instance==TIM5)
{
/* USER CODE BEGIN TIM5_MspDeInit 0 */
/* USER CODE END TIM5_MspDeInit 0 */
/* Peripheral clock disable */
__HAL_RCC_TIM5_CLK_DISABLE();
/* USER CODE BEGIN TIM5_MspDeInit 1 */
/* USER CODE END TIM5_MspDeInit 1 */
}
}
void HAL_TIM_Base_MspDeInit(TIM_HandleTypeDef* tim_baseHandle)
@@ -316,4 +387,49 @@ void HAL_TIM_Base_MspDeInit(TIM_HandleTypeDef* tim_baseHandle)
/* USER CODE BEGIN 1 */
/**
* @brief 更新并获取64位的总微秒数 (核心函数)
* @note 此函数应该被周期性调用（例如在UI的500ms定时器中）
* 来处理32位计数器的溢出并累加到64位变量中。
*/
void UpdateMicrosecondCounter(void)
{
uint32_t current_tim_value = __HAL_TIM_GET_COUNTER(&htim5);
uint32_t diff;
if (current_tim_value >= g_last_tim_value) {
// 没有溢出
diff = current_tim_value - g_last_tim_value;
} else {
// 32位计数器已经溢出
// diff = (最大值 - 上一次的值) + 当前值 + 1
diff = (0xFFFFFFFF - g_last_tim_value) + current_tim_value + 1;
}
g_total_microseconds += diff;
g_last_tim_value = current_tim_value;
}
/**
* @brief 获取累计的64位微秒数
* @retval 64位的总微秒数
*/
uint64_t GetMicrosecondCounter(void)
{
// 在读取前先更新一次，以获取最精确的值
UpdateMicrosecondCounter();
return g_total_microseconds;
}
/**
* @brief 清除累计的微秒计数器
*/
void ClearMicrosecondCounter(void)
{
g_total_microseconds = 0;
// 同时重置TIM5的硬件计数器和软件记录值
__HAL_TIM_SET_COUNTER(&htim5, 0);
g_last_tim_value = 0;
}
/* USER CODE END 1 */