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EDMA+PCIE

aichen wang
Intellectual 380 points


Hi, 

   There is something wrong with my code which servers as EDMA transfer. Here is the name of the function:

            HAL_writeDMA(srcAddr, DestAddress,TransferSize);

and the configuration for DMA opt is :

          DEVICE_REG32_W(PARAM_0_OPT,0x00100004);

if the TransferSize is 0x100000, then the PC will restart,but it works well if the TransferSize is less than 0x100000.

The board is EVM6678, and the PC is windows.

I will appreciate it if anyone could give me some advice as soon as possible.

Regards

Wang aichen