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TMS320C6678: srio 传输包最大长度上限问题

Part Number:TMS320C6678

 请教一下srio最大传输包长度问题,tparams.bytecount = transfer_size;   bytecount 这个参数 最大可以设置多大  0x100000 大小是否可以,或者更大可以吗?   这个参数设置有技巧吗?
    SRIO_LSU_TRANSFER   tparams;
    uint32_t  *srio_trans_src, *srio_trans_dst;
    uint8_t   contextBit = 0, transactionID = 0;
    uint32_t  timeout = 0;
    uint8_t   uiCompletionCode = 0, context = 0;
    timeout = 10000000;
    /* 1.1 caculate the read and write buffer for srio transfer address */
    srio_trans_src = w_buff;
    srio_trans_dst = target_addr;
    /* 1.2 set transfer parameters, srio nwrite test, w_buff -> devmem_buff */
    memset((void *)&tparams, 0, sizeof(tparams));
    tparams.rapidIOLSB = (uint32_t)srio_trans_dst;
    tparams.dspAddress = (uint32_t)srio_trans_src;
    tparams.bytecount = transfer_size;
    if(w_format_type == Srio_Ftype_WRITE)
    {
    tparams.ttype = Srio_Ttype_Write_NWRITE;
    }
    tparams.ftype = w_format_type;
    tparams.dstID = REMOTE_DEVICEID1_8BIT;
    tparams.outPortID = SRIO_PORT;
    tparams.idSize = 0;
Shine:

最大是1M,您可以看一下SRIO user guide文档Table 2-6. Control/Command Register Field Description里的byte_count域说明。https://www.ti.com/lit/ug/sprugw1c/sprugw1c.pdf

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