625 lines
23 KiB
C
625 lines
23 KiB
C
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/******************************************************************************
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* Copyright (C) 2016, Huada Semiconductor Co.,Ltd All rights reserved.
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*
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* This software is owned and published by:
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* Huada Semiconductor Co.,Ltd ("HDSC").
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*
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* BY DOWNLOADING, INSTALLING OR USING THIS SOFTWARE, YOU AGREE TO BE BOUND
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* BY ALL THE TERMS AND CONDITIONS OF THIS AGREEMENT.
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*
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* This software contains source code for use with HDSC
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* components. This software is licensed by HDSC to be adapted only
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* for use in systems utilizing HDSC components. HDSC shall not be
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* responsible for misuse or illegal use of this software for devices not
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* supported herein. HDSC is providing this software "AS IS" and will
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* not be responsible for issues arising from incorrect user implementation
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* of the software.
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*
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* Disclaimer:
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* HDSC MAKES NO WARRANTY, EXPRESS OR IMPLIED, ARISING BY LAW OR OTHERWISE,
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* REGARDING THE SOFTWARE (INCLUDING ANY ACOOMPANYING WRITTEN MATERIALS),
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* ITS PERFORMANCE OR SUITABILITY FOR YOUR INTENDED USE, INCLUDING,
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* WITHOUT LIMITATION, THE IMPLIED WARRANTY OF MERCHANTABILITY, THE IMPLIED
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* WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE OR USE, AND THE IMPLIED
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* WARRANTY OF NONINFRINGEMENT.
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* HDSC SHALL HAVE NO LIABILITY (WHETHER IN CONTRACT, WARRANTY, TORT,
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* NEGLIGENCE OR OTHERWISE) FOR ANY DAMAGES WHATSOEVER (INCLUDING, WITHOUT
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* LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION,
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* LOSS OF BUSINESS INFORMATION, OR OTHER PECUNIARY LOSS) ARISING FROM USE OR
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* INABILITY TO USE THE SOFTWARE, INCLUDING, WITHOUT LIMITATION, ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES OR LOSS OF DATA,
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* SAVINGS OR PROFITS,
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* EVEN IF Disclaimer HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
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* YOU ASSUME ALL RESPONSIBILITIES FOR SELECTION OF THE SOFTWARE TO ACHIEVE YOUR
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* INTENDED RESULTS, AND FOR THE INSTALLATION OF, USE OF, AND RESULTS OBTAINED
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* FROM, THE SOFTWARE.
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*
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* This software may be replicated in part or whole for the licensed use,
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* with the restriction that this Disclaimer and Copyright notice must be
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* included with each copy of this software, whether used in part or whole,
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* at all times.
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*/
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/******************************************************************************/
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/** \file dmac.c
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**
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** A detailed description is available at
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** @link DmacGroup Dmac description @endlink
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**
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** - 2018-03-09 1.0 Hongjh First version for Device Driver Library of Dmac.
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**
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******************************************************************************/
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/*******************************************************************************
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* Include files
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******************************************************************************/
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#include "hc32l196_dmac.h"
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/**
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*******************************************************************************
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** \addtogroup DmacGroup
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******************************************************************************/
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//@{
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/*******************************************************************************
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* Local type definitions ('typedef')
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******************************************************************************/
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/*******************************************************************************
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* Local pre-processor symbols/macros ('#define')
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******************************************************************************/
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/******************************************************************************/
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/* DMA */
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/******************************************************************************/
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/************** Bits definition for DMA_CONFBx(x=0~1) register *************/
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#define DMA_TRANSFER_WIDTH_Pos (26U) /*!< DMAC_CONFBx: ERR_IE Position */
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#define DMA_TRANSFER_WIDTH_Msk (0x03U << DMA_TRANSFER_WIDTH_Pos) /*!< DMAC_CONFBx: ERR_IE Mask 0x0C000000 */
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/************** Bits definition for DMA_CONFBx(x=0~1) register *************/
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#define DMA_ERR_IE_Pos (20U) /*!< DMAC_CONFBx: ERR_IE Position */
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#define DMA_ERR_IE_Msk (0x01U << DMA_ERR_IE_Pos) /*!< DMAC_CONFBx: ERR_IE Mask 0x00000010 */
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/************** Bits definition for DMA_CONFBx(x=0~1) register *************/
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#define DMA_FIS_IE_Pos (19U) /*!< DMAC_CONFBx: FIS_IE Position */
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#define DMA_FIS_IE_Msk (0x01U << DMA_FIS_IE_Pos) /*!< DMAC_CONFBx: FIS_IE Mask 0x00000010 */
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/************** Bits definition for DMA_CONFBx(x=0~1) register *************/
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#define DMA_STAT_Pos (16U) /*!< DMAC_CONFBx: STAT Position */
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#define DMA_STAT_Msk (0x07U << DMA_STAT_Pos) /*!< DMAC_CONFBx: STAT Mask 0x00070000 */
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/************** Bits definition for DMA_CONFBx(x=0~1) register *************/
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#define DMA_TRANSFER_RELOAD_Pos (0U) /*!< DMAC_CONFBx: MSK Position */
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#define DMA_TRANSFER_RELOAD_Msk (0x01U << DMA_TRANSFER_RELOAD_Pos) /*!< DMAC_CONFBx: MSK Mask 0x00000010 */
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/************** Bits definition for DMA_CONFAx(x=0~1) register *************/
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#define DMA_CH_ENABLE_Pos (31U) /*!< DMAC_CONFAx: ENS Position */
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#define DMA_CH_ENABLE_Msk (0x01U << DMA_CH_ENABLE_Pos) /*!< DMAC_CONFAx: ENS Mask 0x80000000 */
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/************** Bits definition for DMA_CONFAx(x=0~1) register *************/
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#define DMA_CH_PAUSE_Pos (30U) /*!< DMAC_CONFAx: PAS Position */
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#define DMA_CH_PAUSE_Msk (0x01U << DMA_CH_PAUSE_Pos) /*!< DMAC_CONFAx: PAS Mask 0x40000000 */
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/************** Bits definition for DMA_CONFAx(x=0~1) register *************/
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#define DMA_SOFTWARE_START_Pos (29U) /*!< DMAC_CONFAx: ENS Position */
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#define DMA_SOFTWARE_START_Msk (0x01U << DMA_SOFTWARE_START_Pos) /*!< DMAC_CONFAx: ENS Mask 0x20000000 */
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/************** Bits definition for DMA_CONFAx(x=0~1) register *************/
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#define DMA_TRI_SEL_Pos (22U) /*!< DMAC_CONFAx: TRISEL Position */
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#define DMA_TRI_SEL_Msk (0x7FU << DMA_TRI_SEL_Pos) /*!< DMAC_CONFAx: TRISEL Mask 0x1FC00000 */
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/************** Bits definition for DMA_CONFAx(x=0~1) register *************/
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#define DMA_BC_SEL_Pos (16U) /*!< DMAC_CONFAx: TRISEL Position */
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#define DMA_BC_SEL_Msk (0x0FU << DMA_BC_SEL_Pos) /*!< DMAC_CONFAx: TRISEL Mask 0x000F0000 */
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/************** Bits definition for DMA_CONFAx(x=0~1) register *************/
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#define DMA_TC_SEL_Pos (0U) /*!< DMAC_CONFAx: TRISEL Position */
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#define DMA_TC_SEL_Msk (0xFFFFU << DMA_TC_SEL_Pos) /*!< DMAC_CONFAx: TRISEL Mask 0x0000FFFF */
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/************** Bits definition for DMA_CONF register *************/
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#define DMA_ENABLE_Pos (31U) /*!< DMAC_CONF: TRISEL Position */
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#define DMA_ENABLE_Msk (0x01U << DMA_ENABLE_Pos) /*!< DMAC_CONF: TRISEL Mask 0x80000000 */
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/************** Bits definition for DMA_CONF register *************/
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#define DMA_PRIORITY_Pos (28U) /*!< DMAC_CONF: TRISEL Position */
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#define DMA_PRIORITY_Msk (0x01U << DMA_PRIORITY_Pos) /*!< DMAC_CONF: TRISEL Mask 0x10000000 */
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/*! Dmac通道参数有效性检查. */
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#define IS_VALID_CH(x) \
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( (DmaCh0 == (x)) || \
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(DmaCh1 == (x)))
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/*! DMA 传输数据宽度，参数有效性检查. */
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#define IS_VALID_TRN_WIDTH(x) \
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( (DmaMsk8Bit == (x)) || \
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(DmaMsk16Bit == (x)) || \
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(DmaMsk32Bit == (x)))
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/*! DMA源地址控制模式，参数有效性检查. */
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#define IS_VALID_SRC_ADDR_MODE(x) \
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( (DmaMskSrcAddrFix == (x)) || \
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(DmaMskSrcAddrInc == (x)))
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/*! DMA目的地址控制模式，参数有效性检查. */
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#define IS_VALID_DST_ADDR_MODE(x) \
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( (DmaMskDstAddrFix == (x)) || \
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(DmaMskDstAddrInc == (x)))
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/*! DMA 优先级, 参数有效性检查. */
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#define IS_VALID_PRIO_MODE(x) \
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( (DmaMskPriorityFix == (x)) || \
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(DmaMskPriorityLoop == (x)))
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/*! DMA 传输模式，参数有效性检查. */
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#define IS_VALID_TRANSFER_MODE(x) \
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( (DmaMskOneTransfer == (x)) || \
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(DmaMskContinuousTransfer == (x)))
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/*! 块传输大小，参数有效性检查. */
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#define IS_VALID_BLKSIZE(x) ((!((x) & ~(DMA_BC_SEL_Msk >> DMA_BC_SEL_Pos)))&&((x)>0))
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/*! 块传输次数，参数有效性检查. */
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#define IS_VALID_TRNCNT(x) (!((x) & ~(DMA_TC_SEL_Msk >> DMA_TC_SEL_Pos)))
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/*******************************************************************************
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* Global variable definitions (declared in header file with 'extern')
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******************************************************************************/
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/*******************************************************************************
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* Local function prototypes ('static')
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******************************************************************************/
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/*******************************************************************************
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* Local variable definitions ('static')
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******************************************************************************/
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/*******************************************************************************
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* Function implementation - global ('extern') and local ('static')
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******************************************************************************/
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/**
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*******************************************************************************
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** \brief 初始化DMAC通道
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**
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** \param [in] enCh 指定通道.
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** \param [in] pstcCfg DMAC通道初始化配置结构体指针.
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**
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** \retval Ok 初始化成功.
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** \retval ErrorInvalidParameter pstcCfg是空指针.
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**
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** \note None
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**
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******************************************************************************/
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en_result_t Dma_InitChannel(en_dma_channel_t enCh, stc_dma_cfg_t* pstcCfg)
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{
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ASSERT(IS_VALID_CH(enCh));
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ASSERT(NULL != pstcCfg);
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ASSERT(IS_VALID_BLKSIZE(pstcCfg->u16BlockSize));
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ASSERT(IS_VALID_TRNCNT(pstcCfg->u16TransferCnt));
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ASSERT(IS_VALID_TRN_WIDTH(pstcCfg->enTransferWidth));
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ASSERT(IS_VALID_SRC_ADDR_MODE(pstcCfg->enSrcAddrMode));
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ASSERT(IS_VALID_DST_ADDR_MODE(pstcCfg->enDstAddrMode));
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ASSERT(IS_VALID_PRIO_MODE(pstcCfg->enPriority));
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ASSERT(IS_VALID_TRANSFER_MODE(pstcCfg->enTransferMode));
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/* 检查通道值有效性和pstcCfg是否空指针 */
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if (NULL == pstcCfg)
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{
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return ErrorInvalidParameter;
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}
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*(&M0P_DMAC->CONFB0+enCh) = 0;
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*(&M0P_DMAC->CONFB0+enCh) = (uint32_t)pstcCfg->enMode |
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(uint32_t)pstcCfg->enTransferWidth |
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(uint32_t)pstcCfg->enSrcAddrMode |
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(uint32_t)pstcCfg->enDstAddrMode |
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(uint32_t)pstcCfg->enSrcAddrReloadCtl |
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(uint32_t)pstcCfg->enDestAddrReloadCtl|
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(uint32_t)pstcCfg->enSrcBcTcReloadCtl |
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(uint32_t)pstcCfg->enTransferMode;
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/*首先把TRI_SEL[6:0] BC[3:0] TC[15:0]这些位清零，然后再赋值*/
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*(&M0P_DMAC->CONFA0+enCh) &= ((uint32_t)~(DMA_TRI_SEL_Msk | DMA_BC_SEL_Msk | DMA_TC_SEL_Msk));
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*(&M0P_DMAC->CONFA0+enCh) |= (uint32_t)(pstcCfg->u16TransferCnt - 1) |
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((uint32_t)(pstcCfg->u16BlockSize - 1)<<16)|
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(uint32_t)(pstcCfg->enRequestNum<<22);
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M0P_DMAC->CONF |= (uint32_t)(pstcCfg->enPriority);
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*(&M0P_DMAC->SRCADR0+enCh) = (uint32_t)(pstcCfg->u32SrcAddress);
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*(&M0P_DMAC->DSTADR0+enCh) = (uint32_t)(pstcCfg->u32DstAddress);
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return Ok;
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}
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/**
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*******************************************************************************
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** \brief DMA模块使能函数，使能所有通道的操作，每个通道按照各自设置工作.
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**
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** \param None
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**
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** \retval None
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**
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** \note None
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**
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******************************************************************************/
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void Dma_Enable(void)
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{
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M0P_DMAC->CONF |= DMA_ENABLE_Msk;
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}
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/**
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*******************************************************************************
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** \brief DMA模块功能禁止函数，所有通道禁止工作.
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**
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** \param None
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**
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** \retval None
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**
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** \note None
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**
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******************************************************************************/
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void Dma_Disable(void)
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{
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M0P_DMAC->CONF &= (~DMA_ENABLE_Msk);
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}
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/**
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*******************************************************************************
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** \brief 触发指定DMA通道软件传输功能.
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**
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** \param [输入] enCh 指定dma通道.
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**
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** \retval None
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**
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** \note None
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**
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******************************************************************************/
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void Dma_SwStart(en_dma_channel_t enCh)
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{
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*(&M0P_DMAC->CONFA0+enCh) |= DMA_SOFTWARE_START_Msk;
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}
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/**
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*******************************************************************************
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** \brief 停止指定DMA通道软件传输功能.
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**
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** \param [输入] enCh 指定dma通道.
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**
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** \retval None
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**
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** \note None
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**
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******************************************************************************/
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void Dma_SwStop(en_dma_channel_t enCh)
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{
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*(&M0P_DMAC->CONFA0+enCh) &= (~DMA_SOFTWARE_START_Msk);
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}
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/**
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*******************************************************************************
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** \brief 使能指定dma通道的（传输完成）中断.
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**
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** \param [输入] enCh 指定dma通道.
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**
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** \retval None
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**
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** \note None
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**
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******************************************************************************/
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void Dma_EnableChannelIrq(en_dma_channel_t enCh)
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|
{
|
|||
|
|
*(&M0P_DMAC->CONFB0+enCh) |= DMA_FIS_IE_Msk;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
*******************************************************************************
|
|||
|
|
** \brief 禁用指定dma通道的（传输完成）中断.
|
|||
|
|
**
|
|||
|
|
** \param [输入] enCh 指定dma通道.
|
|||
|
|
**
|
|||
|
|
** \retval None
|
|||
|
|
**
|
|||
|
|
** \note None
|
|||
|
|
**
|
|||
|
|
******************************************************************************/
|
|||
|
|
void Dma_DisableChannelIrq(en_dma_channel_t enCh)
|
|||
|
|
{
|
|||
|
|
*(&M0P_DMAC->CONFB0+enCh) &= (~DMA_FIS_IE_Msk);
|
|||
|
|
}
|
|||
|
|
/**
|
|||
|
|
*******************************************************************************
|
|||
|
|
** \brief 使能指定dma通道的（传输错误）中断..
|
|||
|
|
**
|
|||
|
|
** \param [输入] enCh 指定dma通道.
|
|||
|
|
**
|
|||
|
|
** \retval None
|
|||
|
|
**
|
|||
|
|
** \note None
|
|||
|
|
**
|
|||
|
|
******************************************************************************/
|
|||
|
|
void Dma_EnableChannelErrIrq(en_dma_channel_t enCh)
|
|||
|
|
{
|
|||
|
|
*(&M0P_DMAC->CONFB0+enCh) |= DMA_ERR_IE_Msk;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
*******************************************************************************
|
|||
|
|
** \brief 禁用指定dma通道的（传输错误）中断..
|
|||
|
|
**
|
|||
|
|
** \param [输入] enCh 指定dma通道.
|
|||
|
|
**
|
|||
|
|
** \retval None
|
|||
|
|
**
|
|||
|
|
** \note None
|
|||
|
|
**
|
|||
|
|
******************************************************************************/
|
|||
|
|
void Dma_DisableChannelErrIrq(en_dma_channel_t enCh)
|
|||
|
|
{
|
|||
|
|
*(&M0P_DMAC->CONFB0+enCh) &= (~DMA_ERR_IE_Msk);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
*******************************************************************************
|
|||
|
|
** \brief 使能指定dma通道
|
|||
|
|
**
|
|||
|
|
** \param [输入] enCh 指定dma通道.
|
|||
|
|
**
|
|||
|
|
** \retval None
|
|||
|
|
**
|
|||
|
|
** \note None
|
|||
|
|
**
|
|||
|
|
******************************************************************************/
|
|||
|
|
void Dma_EnableChannel(en_dma_channel_t enCh)
|
|||
|
|
{
|
|||
|
|
*(&M0P_DMAC->CONFA0+enCh) |= DMA_CH_ENABLE_Msk;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
*******************************************************************************
|
|||
|
|
** \brief 禁用指定dma通道
|
|||
|
|
**
|
|||
|
|
** \param [输入] enCh 指定dma通道.
|
|||
|
|
**
|
|||
|
|
** \retval None
|
|||
|
|
**
|
|||
|
|
** \note None
|
|||
|
|
**
|
|||
|
|
******************************************************************************/
|
|||
|
|
void Dma_DisableChannel(en_dma_channel_t enCh)
|
|||
|
|
{
|
|||
|
|
*(&M0P_DMAC->CONFA0+enCh) &= (~DMA_CH_ENABLE_Msk);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
*******************************************************************************
|
|||
|
|
** \brief 设定指定通道的块(Block)尺寸
|
|||
|
|
**
|
|||
|
|
** \param [输入] enCh 指定通道
|
|||
|
|
** \param [输入] u16BlkSize 块(Block)尺寸.
|
|||
|
|
**
|
|||
|
|
** \retval None
|
|||
|
|
**
|
|||
|
|
** \note None
|
|||
|
|
**
|
|||
|
|
******************************************************************************/
|
|||
|
|
void Dma_SetBlockSize(en_dma_channel_t enCh, uint16_t u16BlkSize)
|
|||
|
|
{
|
|||
|
|
volatile uint32_t *pReg = (&M0P_DMAC->CONFA0+enCh);
|
|||
|
|
|
|||
|
|
*pReg = ((*pReg) & ((uint32_t)~DMA_BC_SEL_Msk)) | ((((uint32_t)u16BlkSize-1)&0x0f)<<DMA_BC_SEL_Pos);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
*******************************************************************************
|
|||
|
|
** \brief 设定指定通道块(Block)传输次数
|
|||
|
|
**
|
|||
|
|
** \param [in] enCh 指定通道.
|
|||
|
|
** \param [in] u16TrnCnt 块(Block)传输次数.
|
|||
|
|
**
|
|||
|
|
** \retval None
|
|||
|
|
**
|
|||
|
|
** \note None
|
|||
|
|
**
|
|||
|
|
******************************************************************************/
|
|||
|
|
void Dma_SetTransferCnt(en_dma_channel_t enCh, uint16_t u16TrnCnt)
|
|||
|
|
{
|
|||
|
|
volatile uint32_t *pReg = (&M0P_DMAC->CONFA0+enCh);
|
|||
|
|
|
|||
|
|
*pReg = ((*pReg)&((uint32_t)~DMA_TC_SEL_Msk))|(((uint32_t)(u16TrnCnt-1)<<DMA_TC_SEL_Pos));
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
*******************************************************************************
|
|||
|
|
** \brief 允许指定通道可连续传输，即DMAC在传输完成时不清除CONFA:ENS位.
|
|||
|
|
**
|
|||
|
|
** \param [in] enCh 指定通道.
|
|||
|
|
**
|
|||
|
|
** \retval None
|
|||
|
|
**
|
|||
|
|
** \note None
|
|||
|
|
**
|
|||
|
|
******************************************************************************/
|
|||
|
|
void Dma_EnableContinusTranfer(en_dma_channel_t enCh)
|
|||
|
|
{
|
|||
|
|
*(&M0P_DMAC->CONFB0+enCh) |= DMA_TRANSFER_RELOAD_Msk;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
*******************************************************************************
|
|||
|
|
** \brief 禁止指定通道连续传输，即DMAC在传输完成时清除.
|
|||
|
|
**
|
|||
|
|
** \param [输入] enCh 指定通道.
|
|||
|
|
**
|
|||
|
|
** \retval None
|
|||
|
|
**
|
|||
|
|
** \note None
|
|||
|
|
**
|
|||
|
|
******************************************************************************/
|
|||
|
|
void Dma_DisableContinusTranfer(en_dma_channel_t enCh)
|
|||
|
|
{
|
|||
|
|
*(&M0P_DMAC->CONFB0+enCh) &= (~DMA_TRANSFER_RELOAD_Msk);
|
|||
|
|
}
|
|||
|
|
/**
|
|||
|
|
*******************************************************************************
|
|||
|
|
** \brief 暂停所有dma通道.
|
|||
|
|
**
|
|||
|
|
** \param None
|
|||
|
|
**
|
|||
|
|
** \retval None.
|
|||
|
|
**
|
|||
|
|
** \note None
|
|||
|
|
**
|
|||
|
|
******************************************************************************/
|
|||
|
|
void Dma_HaltTranfer(void)
|
|||
|
|
{
|
|||
|
|
M0P_DMAC->CONF_f.HALT = 0x1;
|
|||
|
|
}
|
|||
|
|
/**
|
|||
|
|
*******************************************************************************
|
|||
|
|
** \brief 恢复（之前暂停的）所有dma通道.
|
|||
|
|
**
|
|||
|
|
** \param None
|
|||
|
|
**
|
|||
|
|
** \retval None
|
|||
|
|
**
|
|||
|
|
** \note None
|
|||
|
|
**
|
|||
|
|
******************************************************************************/
|
|||
|
|
void Dma_RecoverTranfer(void)
|
|||
|
|
{
|
|||
|
|
M0P_DMAC->CONF_f.HALT = 0x0;
|
|||
|
|
}
|
|||
|
|
/**
|
|||
|
|
*******************************************************************************
|
|||
|
|
** \brief 暂停指定dma通道.
|
|||
|
|
**
|
|||
|
|
** \param [输入] enCh 指定通道.
|
|||
|
|
**
|
|||
|
|
** \retval void
|
|||
|
|
**
|
|||
|
|
** \note None
|
|||
|
|
**
|
|||
|
|
******************************************************************************/
|
|||
|
|
void Dma_PauseChannelTranfer(en_dma_channel_t enCh)
|
|||
|
|
{
|
|||
|
|
*(&M0P_DMAC->CONFA0+enCh) |= DMA_CH_PAUSE_Msk;
|
|||
|
|
}
|
|||
|
|
/**
|
|||
|
|
*******************************************************************************
|
|||
|
|
** \brief 恢复（之前暂定的）指定dma通道.
|
|||
|
|
**
|
|||
|
|
** \param [输入] enCh 指定通道.
|
|||
|
|
**
|
|||
|
|
** \retval None
|
|||
|
|
**
|
|||
|
|
** \note None
|
|||
|
|
**
|
|||
|
|
******************************************************************************/
|
|||
|
|
void Dma_RecoverChannelTranfer(en_dma_channel_t enCh)
|
|||
|
|
{
|
|||
|
|
*(&M0P_DMAC->CONFA0+enCh) &= (~DMA_CH_PAUSE_Msk);
|
|||
|
|
}
|
|||
|
|
/**
|
|||
|
|
*******************************************************************************
|
|||
|
|
** \brief 设定指定通道传输数据宽度.
|
|||
|
|
**
|
|||
|
|
** \param [输入] enCh 指定dma通道.
|
|||
|
|
** \param [输入] enWidth 指定数据宽度.
|
|||
|
|
**
|
|||
|
|
** \retval None
|
|||
|
|
**
|
|||
|
|
** \note None
|
|||
|
|
**
|
|||
|
|
******************************************************************************/
|
|||
|
|
void Dma_SetTransferWidth(en_dma_channel_t enCh, en_dma_transfer_width_t enWidth)
|
|||
|
|
{
|
|||
|
|
volatile uint32_t *pReg = (&M0P_DMAC->CONFA0+enCh);
|
|||
|
|
|
|||
|
|
*pReg = ((*pReg)&((uint32_t)~DMA_TRANSFER_WIDTH_Msk))|((uint32_t)enWidth);
|
|||
|
|
}
|
|||
|
|
/**
|
|||
|
|
*******************************************************************************
|
|||
|
|
** \brief 设定dma通道优先级.
|
|||
|
|
**
|
|||
|
|
** \param [输入] enPrio 通道优先级设定参数.
|
|||
|
|
**
|
|||
|
|
** \retval None
|
|||
|
|
**
|
|||
|
|
** \note None
|
|||
|
|
**
|
|||
|
|
******************************************************************************/
|
|||
|
|
void Dma_SetChPriority(en_dma_priority_t enPrio)
|
|||
|
|
{
|
|||
|
|
M0P_DMAC->CONF = ((M0P_DMAC->CONF)&((uint32_t)~DMA_PRIORITY_Msk))|((uint32_t)enPrio);
|
|||
|
|
}
|
|||
|
|
/**
|
|||
|
|
*******************************************************************************
|
|||
|
|
** \brief 获取指定DMA通道的状态.
|
|||
|
|
**
|
|||
|
|
** \param [输入] enCh 指定dma通道.
|
|||
|
|
**
|
|||
|
|
** \retval en_dma_stat_t DMA传输当前状态
|
|||
|
|
**
|
|||
|
|
** \note None
|
|||
|
|
**
|
|||
|
|
******************************************************************************/
|
|||
|
|
en_dma_stat_t Dma_GetStat(en_dma_channel_t enCh)
|
|||
|
|
{
|
|||
|
|
return (en_dma_stat_t)((*(&M0P_DMAC->CONFB0+enCh)&(DMA_STAT_Msk))>>DMA_STAT_Pos);
|
|||
|
|
}
|
|||
|
|
/**
|
|||
|
|
*******************************************************************************
|
|||
|
|
** \brief 清除指定DMA通道的状态值.
|
|||
|
|
**
|
|||
|
|
** \param [输入] enCh 指定dma通道.
|
|||
|
|
**
|
|||
|
|
** \retval None
|
|||
|
|
**
|
|||
|
|
** \note None
|
|||
|
|
**
|
|||
|
|
******************************************************************************/
|
|||
|
|
void Dma_ClrStat(en_dma_channel_t enCh)
|
|||
|
|
{
|
|||
|
|
*(&M0P_DMAC->CONFB0+enCh) &= (~DMA_STAT_Msk);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
*******************************************************************************
|
|||
|
|
** \brief 设定指定通道源地址
|
|||
|
|
**
|
|||
|
|
** \param [输入] enCh 指定dma通道.
|
|||
|
|
** \param [输入] u32Address 传输源地址.
|
|||
|
|
**
|
|||
|
|
** \retval None
|
|||
|
|
**
|
|||
|
|
** \note None
|
|||
|
|
**
|
|||
|
|
******************************************************************************/
|
|||
|
|
void Dma_SetSourceAddress(en_dma_channel_t enCh, uint32_t u32Address)
|
|||
|
|
{
|
|||
|
|
*(&M0P_DMAC->SRCADR0+enCh) = u32Address;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
*******************************************************************************
|
|||
|
|
** \brief 设定指定通道目标地址.
|
|||
|
|
**
|
|||
|
|
** \param [输入] enCh 指定dma通道.
|
|||
|
|
** \param [输入] u32Address 传输目标地址.
|
|||
|
|
**
|
|||
|
|
** \retval None
|
|||
|
|
**
|
|||
|
|
** \note None
|
|||
|
|
**
|
|||
|
|
******************************************************************************/
|
|||
|
|
void Dma_SetDestinationAddress(en_dma_channel_t enCh, uint32_t u32Address)
|
|||
|
|
{
|
|||
|
|
*(&M0P_DMAC->DSTADR0+enCh) = u32Address;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
//@} // DmacGroup
|
|||
|
|
|
|||
|
|
/*******************************************************************************
|
|||
|
|
* EOF (not truncated)
|
|||
|
|
******************************************************************************/
|