【无标题】vxworks ARM Pl330DMA 数据传输指令流创建

最新推荐文章于 2024-07-31 11:54:42 发布

原创

最新推荐文章于 2024-07-31 11:54:42 发布 · 397 阅读

1 ·

CC 4.0 BY-SA版权

文章标签：

#拓扑学 #fpga开发

/*******************************************************************************
*
* pl330DmaChanMicroCodeCreate - create micro code for dma transfer
*
* This routine create micro code for dma transfer
*
* RETURNS: OK or ERROR if there is an error.
*
* ERRNO: N/A
*/

LOCAL STATUS pl330DmaChanMicroCodeCreate
    (
    VXB_DEVICE_ID       pDev,
    PL330_DMA_CHAN *    pChan
    )
    {
    UINT32                  chan;
    UINT32                  ccr;
    UINT32                  loop0;
    UINT32                  loop1;
    UINT32                  rest;
    UINT8 *                 pBuf;
    UINT32                  loop0Start;
    UINT32                  loop1Start;
    UINT32                  burstSize;
    PL330_DMA_CHAN_PARAM *  pChanParam;

    chan        = pChan->chanNum;
    pChanParam  = pChan->pChanParam;
    pBuf        = pChan->pMicroCodeBuf;
    bzero ((char *)pChan->pMicroCodeBuf, PL330_MICROCODE_SIZE);

    /* swi