Freescale 802.15.4 MAC, slow SPI?

[KRichard]

Hi, I have a problem, yet again.

I use a custom 5373 ColdFire based board with an 13202 transceiver.

I configured the MAC to do simple beaconing and somehow the bytes (actually words) don't get written to the transceiver fast enough. So for example if the MAC wants to send "0x1234 0x5678 0x9abc", the radio chip sends out "0x1234 0x1234 0x5678" and the IRQ Status register of the 13202 shows 0x1000 (stream data error).

If I use the same Mc1319xDrv.c transceiver driver code in my custom test project, I can send out data in streaming mode without problem.

What may be the problem here? The power of the ColdFire should be way more than enough to handle this, any hints would be appreciated.

Thanks in advance,
Richard

[JWW]

Richard,

Was reading through the forum and saw your question... Did you ever get a response from us directly or from a user on the forum?

The 537x has plenty of capacity to handle the 202 radio.  This is not an issue.  Something strange is going on...

The actual bandwidth requirements are very simple for basic MAC operation on the 202 radios.  Which base code did you start with?

-Jww