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SPI Comm. between 2 CC2531 USB dongles

Devendar Rao
Prodigy 55 points
Other Parts Discussed in Thread: CC2531

Hi ,

I am trying to communicate  2 CC2531 USB dongles through SPI using Keil. One as Master and another as Slave.

 I have been successful in communicating both but the issue is the result is not consentent.

Initialy I have configured Master as follows. I have written some data in Master's UxDBUF, waited till UxTX_BYTE is set.

Then I cleared UxTX_BYTE, gave some milli-secs delay and again wrote some data in UxDBUF.

Now on Slave end. I waited till UxRX_BYTE is set. Then I cleared UxRX_BYTE, and moved the data in Slave's UxDBUF to my personal buffer

and again waited till UxRX_BYTE is set.

As I said everything is working fine, but the issue is execution is not consistent.

I believe there is some sync issue between master and slave.

Can anybody please help me regrading this issue.

 

Thanks in advance.

Dev.