AC-Motor-FU6815/User/source/Hardware/DMA.c

#include "DMA.h"
#include <FU68xx_5_DMA.h>


//#define DMALENT 128

unsigned char xdata sg_ucUartDbgData[DMALENT] = {0xaa, 0xbb};
char                sg_cUartDataLen;
unsigned char       sg_ucUartDataSum;

void DMA0_XRAMToUART_Init(void)
{
    /* -----DMACFG2:DMACFG1: DMACFG0-->001  传输方向XRAMToUART----- */
    SetReg(DMA0_CR0, DMAEN | DMACFG2 | DMACFG1 | DMACFG0 | DMAIE, DMACFG0 );  // DMAIE和DMACFG0为1
    DMA0_LEN =  DMALENT;                                                                   // 设置传输长度为7，每传输7字节产生一次中断
    DMA0_BA  =  (uint16)GetAddr_UARTDBG();                                                              // 设置RAM中的首地址
    SetBit(DMA0_CR0, DMAEN);                                                         // 使能DMA1
}

/**
    获取缓存区的地址

    @return  缓存区地址
*/
unsigned char * GetAddr_UARTDBG(void)
{
    return &sg_ucUartDbgData;
}


/**
 * 配置DMA
 *
 * @param DMAx      DMA通道
 * @param DMAPipe   DMA管道，可选参数如下
 *                      UART1_XDATA    UART1-->XDATA
 *                      XDATA_UART1    UART1<--XDATA
 *                      I2C_XDATA      I2C  -->XDATA
 *                      XDATA_I2C      I2C  <--XDATA
 *                      SPI_XDATA      SPI  -->XDATA
 *                      XDATA_SPI      SPI  <--XDATA
 *                      UART2_XDATA    UART2-->XDATA
 *                      XDATA_UART2    UART2<--XDATA
 * @param DMAAddr   传输首地址，可取地址范围：0x0000~0x0317
 * @param DMALen    数据包大小(1~64)
 */
void Conf_DMA(uint8 DMAx, uint8 DMAPipe, uint16 DMAAddr, uint8 DMALen)
{
    Wait_DMA(DMAx);                                                   // 等待DMAx传输结束
    ClrBit(*(&DMA0_CR0 + DMAx), DMAEN);                               // 禁止DMAx的传输

    SetReg(*(&DMA0_CR0 + DMAx), DMA_PIPE, DMAPipe);                   // 设置DMAx的传输管道

    *(&DMA0_LEN + DMAx) = DMALen - 1;                                 // 设置DMAx传输数量
    *(&DMA0_BA + DMAx) = DMAAddr & 0x07ff;                           // 设置DMAx传输首地址   
}




void SetPipe_DMA0(eType_DMA_PIPE ePipe)
{
    bool bTmp = false;

    if (ReadBit(DMA0_CR0 , DMAEN))
    {
        bTmp = true;
        while (ReadBit(DMA0_CR0 , DMABSY));
        ClrBit(DMA0_CR0 , DMAEN);
    }

    SetReg(DMA0_CR0 , DMACFG2 | DMACFG1 | DMACFG0 , ePipe);

    if (bTmp) SetBit(DMA0_CR0 , DMAEN);
}

void SetPipe_DMA1(eType_DMA_PIPE ePipe)
{
    bool bTmp = false;

    if (ReadBit(DMA1_CR0 , DMAEN))
    {
        bTmp = true;
        while (ReadBit(DMA1_CR0 , DMABSY));
        ClrBit(DMA1_CR0 , DMAEN);
    }

    SetReg(DMA1_CR0 , DMACFG2 | DMACFG1 | DMACFG0 , ePipe);

    if (bTmp) SetBit(DMA1_CR0 , DMAEN);
}

void SetDataPackage_DMA0(unsigned short ulAddr , char cLen)
{
    bool bTmp = false;

    if (ReadBit(DMA0_CR0 , DMAEN))
    {
        bTmp = true;

        while (ReadBit(DMA0_CR0 , DMABSY));
        ClrBit(DMA0_CR0 , DMAEN);
    }

    DMA0_LEN =  cLen;
    DMA0_BA  =  ulAddr;

    if (bTmp) SetBit(DMA0_CR0, DMAEN);
}

void SetDataPackage_DMA1(unsigned short ulAddr, char cLen)
{
    bool bTmp = false;

    if (ReadBit(DMA1_CR0 , DMAEN))
    {
        bTmp = true;

        while (ReadBit(DMA1_CR0 , DMABSY));
        ClrBit(DMA1_CR0 , DMAEN);
    }

    DMA1_LEN = cLen;
    DMA1_BA  = ulAddr;

    if (bTmp) SetBit(DMA1_CR0 , DMAEN);
}

void SetEndian_DMA(eType_DMA_Endian eEndian)
{
    bool bTmp = false, bTmp1;

    if (ReadBit(DMA0_CR0 , DMAEN))
    {
        bTmp = true;

        while (ReadBit(DMA0_CR0 , DMABSY));
        ClrBit(DMA0_CR0 , DMAEN);
    }

    if (ReadBit(DMA1_CR0 , DMAEN))
    {
        bTmp1 = true;

        while (ReadBit(DMA1_CR0 , DMABSY));
        ClrBit(DMA1_CR0 , DMAEN);
    }

    SetReg(DMA0_CR0, ENDIAN, eEndian);

    if (bTmp)  SetBit(DMA0_CR0 , DMAEN);
    if (bTmp1) SetBit(DMA1_CR0 , DMAEN);
}

void SetIRQ_DMA(ebool eIRQ, eType_DMA_IRQ eIP)
{
    SetReg(DMA0_CR0, DMAIE, eIRQ ? DMAIE : 0);

    if (!EA) EA = 1;

    if (eIRQ) SetReg(IP1 , PDMA1 | PDMA0 , eIP);
}

void SetDbgMod_DMA(void)
{
    bool bTmp = false;

    if (ReadBit(DMA1_CR0 , DMAEN))
    {
        bTmp = true;

        while (ReadBit(DMA1_CR0 , DMABSY));
        ClrBit(DMA1_CR0 , DMAEN);
    }

    SetBit(DMA1_CR0 , DBGEN);
    SetBit(DMA1_CR0 , ((eType_DMA_PIPE)DRAM_SPI));
    DMA1_LEN = 4;

    if (bTmp) SetBit(DMA1_CR0, DMAEN);
}

/**
 * 设置DMA1的DBG模式
 *
 * @param Addr   要DBG输出的地址
 */
uint16 xdata spidebug[4] = { 0 };
void Set_DBG_DMA(uint16 DMAAddr)
{
	//	SPI_Init();
	
    ClrBit(DMA1_CR0, DMAEN);                                // 禁止DMA1传输
    SetBit(DMA1_CR0, DBGEN | DRAM_SPI);                     // 设置DMA1使用DBG模式，XDATA发送数据到SPI
    if (!ReadBit(DMAAddr, 0x4000)) SetBit(DMA1_CR0, DBGSW); //根据DMAAddr判断是否在XRAM区，如果是则开启DBGSW

    DMA1_LEN = 7;                                           // 设置DMA1发送数量为8
//		DMA1_BA = (uint16)spidebug & 0x07ff; 
    DMA1_BA = DMAAddr & 0x07ff;                             // 设置DMA1发送首地址
		SetBit(*(&DMA0_CR0 + 1), DMAEN | DMABSY);
//    Switch_DMA(1);                                       // 启动DMA1
}


void SetDbgData_DMA(unsigned short ulAddr)
{
    bool bTmp = false;

    if (ReadBit(DMA1_CR0, DMAEN))
    {
        bTmp = true;

        while (ReadBit(DMA1_CR0, DMABSY));
        ClrBit(DMA1_CR0, DMAEN);
    }

    if (ulAddr <= 0xfff) ulAddr += 0x70000000;
    DMA1_BA = ulAddr;

    if (bTmp) SetBit(DMA1_CR0, DMAEN);
}

void EnableRun_DMA0(void)
{
    SetBit(DMA0_CR0 , DMAEN | DMABSY);
}

void EnableRun_DMA1(void)
{
    SetBit(DMA1_CR0 , DMAEN | DMABSY);
}

bool GetStatus_DMA0(eType_DMA_Statu eStatu)
{
    return ReadBit(DMA0_CR0 , eStatu);
}

bool GetStatus_DMA1(eType_DMA_Statu eStatu)
{
    return ReadBit(DMA1_CR0 , eStatu);
}