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https://gitee.com/dlmu-cone/bf_original_balance_chassis
synced 2026-07-24 03:27:45 +08:00
添加了编译参数提示,完成了bmi088阻塞周期访问版本的实现,添加了zeromalloc
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@@ -2,6 +2,7 @@
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******************************************************************************
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* @file bsp_dwt.c
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* @author Wang Hongxi
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* @author modified by Neo with annotation
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* @version V1.1.0
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* @date 2022/3/8
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* @brief
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@@ -17,7 +18,21 @@ static uint32_t CPU_FREQ_Hz, CPU_FREQ_Hz_ms, CPU_FREQ_Hz_us;
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static uint32_t CYCCNT_RountCount;
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static uint32_t CYCCNT_LAST;
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uint64_t CYCCNT64;
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static void DWT_CNT_Update(void);
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/**
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* @brief 私有函数,用于检查DWT CYCCNT寄存器是否溢出,并更新CYCCNT_RountCount
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* @attention 此函数假设两次调用之间的时间间隔不超过一次溢出
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*
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*/
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static void DWT_CNT_Update(void)
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{
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volatile uint32_t cnt_now = DWT->CYCCNT;
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if (cnt_now < CYCCNT_LAST)
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CYCCNT_RountCount++;
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CYCCNT_LAST = cnt_now;
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}
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void DWT_Init(uint32_t CPU_Freq_mHz)
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{
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@@ -101,15 +116,6 @@ uint64_t DWT_GetTimeline_us(void)
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return DWT_Timelinef32;
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}
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static void DWT_CNT_Update(void)
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{
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volatile uint32_t cnt_now = DWT->CYCCNT;
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if (cnt_now < CYCCNT_LAST)
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CYCCNT_RountCount++;
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CYCCNT_LAST = cnt_now;
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}
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void DWT_Delay(float Delay)
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{
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@@ -25,13 +25,63 @@ typedef struct
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extern DWT_Time_t SysTime;
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/**
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* @brief 初始化DWT,传入参数为CPU频率,单位MHz
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*
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* @param CPU_Freq_mHz c板为168MHz,A板为180MHz
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*/
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void DWT_Init(uint32_t CPU_Freq_mHz);
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/**
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* @brief 获取两次调用之间的时间间隔,单位为秒/s
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*
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* @param cnt_last 上一次调用的时间戳
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* @return float 时间间隔,单位为秒/s
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*/
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float DWT_GetDeltaT(uint32_t *cnt_last);
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/**
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* @brief 获取两次调用之间的时间间隔,单位为秒/s,高精度
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*
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* @param cnt_last 上一次调用的时间戳
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* @return double 时间间隔,单位为秒/s
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*/
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double DWT_GetDeltaT64(uint32_t *cnt_last);
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/**
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* @brief 获取当前时间,单位为秒/s,即初始化后的时间
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*
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* @return float 时间轴
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*/
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float DWT_GetTimeline_s(void);
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/**
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* @brief 获取当前时间,单位为毫秒/ms,即初始化后的时间
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*
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* @return float
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*/
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float DWT_GetTimeline_ms(void);
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/**
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* @brief 获取当前时间,单位为微秒/us,即初始化后的时间
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*
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* @return uint64_t
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*/
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uint64_t DWT_GetTimeline_us(void);
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/**
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* @brief DWT延时函数,单位为秒/s
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* @attention 该函数不受中断是否开启的影响,可以在临界区和关闭中断时使用
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* @note 禁止在__disable_irq()和__enable_irq()之间使用HAL_Delay()函数,应使用本函数
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*
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* @param Delay 延时时间,单位为秒/s
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*/
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void DWT_Delay(float Delay);
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/**
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* @brief DWT更新时间轴函数,会被三个timeline函数调用
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* @attention 如果长时间不调用timeline函数,则需要手动调用该函数更新时间轴,否则CYCCNT溢出后定时和时间轴不准确
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*/
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void DWT_SysTimeUpdate(void);
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