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EMIFA access (Read/write) effect on DMA operation [C674x DSP]

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Dear experts,

I am using TMS320C6747 on a project, there is an EDMA engine for accessing data via McASP and it works without any problem, as soon as I try to access EMIFA through CPU (this is a 32 bit read/write every few milliseconds so there is no need for DMA, etc), this causes corruption on data received from MsASP and I have difficulty to figure out what is really happening and why so little access to EMIFA messes up the DMA operation, I appreciate any comment/sugestions on this issue.

 

Regards,

Lhas


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