152 lines
5.6 KiB
C
152 lines
5.6 KiB
C
#include "../main/SystemInclude.h"
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/**------------------------------------------------------------------------
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* @brief 低功耗时钟初始化函数
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* @note 初始化结构体-选择时钟源
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* @param
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**/
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static void LPTIM_Init(LPTIM_TypeDef *lptimer)
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{
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LPTIM_InitTypeDef LPTIM_InitStructure; /* 1. 初始化LPTimer Base */
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LPTIM_InitStructure.Mode = LPTIM_MODE_TIMER_COUNTER; // 定时器模式
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#if LPTIM_CLK_ENABLE_LSE
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LHL_RCC_LSEConfig(ENABLE);
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LPTIM_InitStructure.Clock = LPTIM_CLOCKSOURCE_LSE; // LPTIM时钟源LSE
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#else
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LHL_RCC_LSEConfig(DISABLE);
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LPTIM_InitStructure.Clock = LPTIM_CLOCKSOURCE_LSI; // LPTIM时钟源LSI
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#endif
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LPTIM_InitStructure.Prescaler = LPTIM_PRESCALER_DIV1; // 预分频系数2
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LPTIM_InitStructure.FreeRunning = DISABLE; // 禁用自由运行模式
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LHL_LPTIM_Init(lptimer, &LPTIM_InitStructure);
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}
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/*==================================================================================*/
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/*LPTimer1==========================================================================*/
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/*==================================================================================*/
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/**------------------------------------------------------------------------
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* @brief 低功耗时钟初始化函数
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* @note LPTimer 时钟频率32768Hz
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* @param uploadCounter : 计算方法(uploadCounter=32.768 ->t=1ms)
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**/
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void StartLPTimer1(u16 uploadCounter)//125ms 250ms ......
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{
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/* 1. 初始化LPTimer Base */
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LHL_LPTIM_DeInit(LPTIM1);
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LPTIM_Init(LPTIM1);
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/* 2. 开启LPTimer中断 */
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LHL_LPTIM_ITConfig(LPTIM1, ENABLE);
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NVIC_EnableIRQ(LPTIM1_IRQn);
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/* 3. 启动LPTimer1 */
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LHL_LPTIM_Start(LPTIM1, uploadCounter); // LPTIMER1 = (Period+1)/Clock = 32768/32768 = 1S
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}
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/**------------------------------------------------------------------------
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* @brief 低功耗时钟重置函数（改变定时器周期）
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* @note LPTimer 时钟频率32768Hz
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* @param uploadCounter : 计算方法(uploadCounter=32.768 ->t=1ms)
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**/
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void ResetLPTimer1(u16 uploadCounter)
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{
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LPTIM1->CSR &= ~LPTIM_CSR_TEN_Msk;// 1. 禁用定时器
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LPTIM1->CSR |= LPTIM_CSR_TCF_Msk; // 2. 清除比较中断标志
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LPTIM1->CMR = uploadCounter; // 3. 设置新的比较值
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LPTIM1->CSR |= LPTIM_CSR_TEN_Msk; // 4. 重新使能 → 计数器从 0 开始
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}
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/*==================================================================================*/
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/*LPTimer1==========================================================================*/
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/*==================================================================================*/
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/**------------------------------------------------------------------------
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* @brief 低功耗时钟初始化函数
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* @note LPTimer 时钟频率32768Hz
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* @param uploadCounter : 计算方法(uploadCounter=32.768 ->t=1ms)
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**/
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void StartLPTimer2(u16 uploadCounter)//125ms 250ms ......
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{
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LPTIM_InitTypeDef LPTIM_InitStructure;
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/* 1. 初始化LPTimer Base */
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LPTIM_InitStructure.Mode = LPTIM_MODE_TIMER_COUNTER; // 定时器模式
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#if 1
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LHL_RCC_LSEConfig(ENABLE);
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LPTIM_InitStructure.Clock = LPTIM_CLOCKSOURCE_LSI; // LPTIM0时钟源LSI
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#else
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LPTIM_InitStructure.Clock = LPTIM_CLOCKSOURCE_LSI; // LPTIM0时钟源LSI
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#endif
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LPTIM_InitStructure.Prescaler = LPTIM_PRESCALER_DIV1; // 预分频系数2
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LPTIM_InitStructure.FreeRunning = DISABLE; // 禁用自由运行模式
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LHL_LPTIM_Init(pLPTIM2, &LPTIM_InitStructure);
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/* 2. 开启LPTimer中断 */
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LHL_LPTIM_ITConfig(pLPTIM2, ENABLE);
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NVIC_EnableIRQ(LPTIM2_IRQn);
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/* 3. 启动LPTimer1和2 */
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LHL_LPTIM_Start(pLPTIM2, uploadCounter); // LPTIMER1 = (Period+1)/Clock = 32768/32768 = 1S
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}
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/**------------------------------------------------------------------------
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* @brief 低功耗时钟重置函数
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* @note LPTimer 时钟频率32768Hz
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* @param uploadCounter : 计算方法(uploadCounter=32.768 ->t=1ms)
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**/
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void ResetLPTimer2(u16 uploadCounter)
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{
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LPTIM2->CSR &= ~LPTIM_CSR_TEN_Msk;// 1. 禁用定时器
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LPTIM2->CSR |= LPTIM_CSR_TCF_Msk; // 2. 清除比较中断标志
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LPTIM2->CMR = uploadCounter; // 3. 设置新的比较值
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LPTIM2->CSR |= LPTIM_CSR_TEN_Msk; // 4. 重新使能 → 计数器从 0 开始
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}
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/*==================================================================================*/
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/*低功耗回调函数====================================================================*/
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/*==================================================================================*/
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/**------------------------------------------------------------------------
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* @brief 定时器回调函数注册
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* @note
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* @param LPTIM_TypeDef *lptimer：LPTIM1 LPTIM2 ； lptimer_irq_callback_t lptim_irq_callback ：自定义回调函数名
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* @example: SHAL_timer_register_irq_callback(pTIM1,callback1);
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**/
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static lptimer_irq_callback_t lptim1_irq_callback,lptim2_irq_callback ;
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void lptimer_register_irq_callback(LPTIM_TypeDef *lptimer ,lptimer_irq_callback_t lptim_irq_callback)
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{
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if(lptimer == LPTIM1)
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{
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lptim1_irq_callback = lptim_irq_callback;//赋值回调函数
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LHL_LPTIM_ClearPending(LPTIM1);// 清除中断标志
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NVIC_EnableIRQ(LPTIM1_IRQn);//开启中断
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}
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else if(lptimer == LPTIM2)
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{
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lptim2_irq_callback = lptim_irq_callback;
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LHL_LPTIM_ClearPending(LPTIM2);// 清除中断标志
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NVIC_EnableIRQ(LPTIM2_IRQn);
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}
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}
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/**
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* @brief
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* @param
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* @retval
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*/
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void LPTIM1_IRQHandler(void)
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{
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// 如果有中断发生且注册了回调函数
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if (lptim1_irq_callback != NULL) lptim1_irq_callback();// 调用用户注册的回调函数
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LHL_LPTIM_ClearPending(LPTIM1); // 清除中断标志
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}
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/**
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* @brief
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* @param
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* @retval
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*/
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void LPTIM2_IRQHandler(void)
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{
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// 如果有中断发生且注册了回调函数
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if (lptim2_irq_callback != NULL) lptim2_irq_callback();// 调用用户注册的回调函数
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LHL_LPTIM_ClearPending(LPTIM2); // 清除中断标志
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}
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