136 lines
5.5 KiB
C
136 lines
5.5 KiB
C
#ifndef __DMA_H__
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#define __DMA_H__
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/**
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* @brief 清除DMA传输完成标志
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* @param {DMA_HandleTypeDef} *DMAX DMA总线句柄
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* @param {uint32_t} CHx DMA通道号
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* @return {*} 操作结果
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* @note: 该宏用于清除DMA总线的传输完成标志。它首先检查DMA总线的传输完成标志是否已置位，如果已置位，则清除该标志。
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*/
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#define DMA_ClEAR_FLAG_TC(DMAX, CHx) \
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do \
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{ \
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if (LL_DMA_IsActiveFlag_TC##CHx(DMAX)) \
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{ \
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LL_DMA_ClearFlag_TC##CHx(DMAX); \
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} \
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} while (__LINE__ == -1)
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/**
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* @brief 清除DMA传输错误标志
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* @param {DMA_HandleTypeDef} *DMAX DMA总线句柄
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* @param {uint32_t} CHx DMA通道号
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* @return {*} 操作结果
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* @note: 该宏用于清除DMA总线的传输错误标志。它首先检查DMA总线的传输错误标志是否已置位，如果已置位，则清除该标志。
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*/
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#define DMA_ClEAR_FLAG_TE(DMAX, CHx) \
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do \
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{ \
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if (LL_DMA_IsActiveFlag_TE##CHx(DMAX)) \
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{ \
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LL_DMA_ClearFlag_TE##CHx(DMAX); \
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} \
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} while (__LINE__ == -1)
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/**
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* @file uarts.c
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* @brief This file contains the implementation of DMA_CLEAR_FLAG_TC_CHANNEL macro.
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*/
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/**
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* @brief Clear the Transfer Complete (TC) flag of a specific DMA channel.
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*
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* @param dma The DMA peripheral.
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* @param channel The DMA channel number.
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*/
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#define DMA_CLEAR_FLAG_TC_CHANNEL(dma, channel) \
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switch (channel) \
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{ \
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case LL_DMA_CHANNEL_1: \
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DMA_ClEAR_FLAG_TC(dma, 1); \
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break; \
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case LL_DMA_CHANNEL_2: \
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DMA_ClEAR_FLAG_TC(dma, 2); \
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break; \
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case LL_DMA_CHANNEL_3: \
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DMA_ClEAR_FLAG_TC(dma, 3); \
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break; \
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case LL_DMA_CHANNEL_4: \
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DMA_ClEAR_FLAG_TC(dma, 4); \
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break; \
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case LL_DMA_CHANNEL_5: \
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DMA_ClEAR_FLAG_TC(dma, 5); \
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break; \
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case LL_DMA_CHANNEL_6: \
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DMA_ClEAR_FLAG_TC(dma, 6); \
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break; \
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case LL_DMA_CHANNEL_7: \
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DMA_ClEAR_FLAG_TC(dma, 7); \
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break; \
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default: \
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break; \
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}
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/**
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* @brief Clear the Transfer Error (TE) flag for the specified DMA channel.
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*
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* @param dma The DMA peripheral.
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* @param channel The DMA channel number.
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*/
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#define DMA_CLEAR_FLAG_TE_CHANNEL(dma, channel) \
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switch (channel) \
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{ \
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case 1: \
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DMA_ClEAR_FLAG_TE(dma, 1); \
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break; \
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case 2: \
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DMA_ClEAR_FLAG_TE(dma, 2); \
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break; \
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case 3: \
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DMA_ClEAR_FLAG_TE(dma, 3); \
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break; \
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case 4: \
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DMA_ClEAR_FLAG_TE(dma, 4); \
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break; \
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case 5: \
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DMA_ClEAR_FLAG_TE(dma, 5); \
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break; \
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case 6: \
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DMA_ClEAR_FLAG_TE(dma, 6); \
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break; \
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case 7: \
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DMA_ClEAR_FLAG_TE(dma, 7); \
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break; \
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default: \
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break; \
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}
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/**
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* @brief Clears the flags of a DMA channel
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* @param DMAX DMAx register base
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* @param CHx DMA channel number
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* @param Flag a boolean variable that indicates if the transfer is complete
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* @note This function should be called within the interrupt service routine of the DMA channel
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*/
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#define DMA_ClEAR_FLAG(DMAX, CHx, Flag) \
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do \
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{ \
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if (LL_DMA_IsActiveFlag_TC##CHx(DMAX)) \
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{ \
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LL_DMA_ClearFlag_TC##CHx(DMAX); \
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LL_DMA_ClearFlag_GI##CHx(DMAX); \
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Flag = TRUE; \
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} \
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if (LL_DMA_IsActiveFlag_TE##CHx(DMAX)) \
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{ \
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LL_DMA_ClearFlag_TE##CHx(DMAX); \
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} \
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if (LL_DMA_IsActiveFlag_GI##CHx(DMAX)) \
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{ \
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LL_DMA_ClearFlag_GI##CHx(DMAX); \
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} \
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} while (__LINE__ == -1)
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#endif // __DMA_H__
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