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TMS320C6748: upp问题

Part Number: TMS320C6748

目前在做upp开发,dsp通过upp跟FPGA通信,fpga代码发送4096个字节时是分4次发送的,每次发送1024个字节,dsp的dma buffer设置成1024*4。做了下测试,如果将dsp的dma buffer大小调整成2048*2,可以正常接收到全部数据,但是如果改成512*8(每行512字节,8行),则只能接收到第一行的512字节。请教一下,upp的发送方每次发送的数据是否必须小于等于接收方的dma行大小?


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