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PCWHD MRF49XA or Si4421 to PIC24FJ32GA002 SPI Communications

 
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PCWHD MRF49XA or Si4421 to PIC24FJ32GA002 SPI Communications
PostPosted: Mon Sep 14, 2009 12:05 pm     Reply with quote
I have a PIC24FJ32GA002 connected to a MRF49XA and have been unsuccessful in establishing SPI communications. I am using a PCWHD CCS compiler. I am willing to use a bit-banged approach if I have to. So far nothing is giving me results expected.

I have attempted to use the MRF49XA Demo Source code but only read back 0x00 and do not understand from their examples how to read the values of a particular register.

I have attempted to used the CCS SPI functions and do not get the correct POR values or correct values after writing to a register. Any advice appreciated.

The MRF49XA and Si4421 are the same part. If anyone has been able to use these please reply.
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Mon Sep 14, 2009 12:25 pm     Reply with quote
Look at FvM's post on using hardware SPI with the 24F-series:
http://www.ccsinfo.com/forum/viewtopic.php?t=38491&start=12
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