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Why ACM and ADC with SPORT0 on BF506F doesn't works?

Question asked by mauri1106 on Jun 18, 2012
Latest reply on Jun 20, 2012 by Prashant

Hello,

I'm trying to use ADC and ACM in my own board with BF506F processor.

For this purpose I use a software test provided in  "http://ez.analog.com/thread/3810"  and with EZ-kit all works fine.

When I execute on my own board, all signal seems to be well driven but no data are received through DMA2 (Sport0 RX): always 0x3FF is received.

In the attached file I've added code for test both on EZ-Kit and on my own board.

The only relevant difference is that in my own board I must use SPORT0 instead of SPORT1.

In this code, the "#define EZ_KIT" instruction (placed in main.c) i used to switch from Ez-Kit and my own board.

 

NOTES:

     All analog signal are routed on pin of BF506F

     All signal (ACM_A[0:2] , ACM_RANGE, etc.) are well driven.

     The RSCLK0 and RFS0 seems to be as expected

     The timing is not changed, because I suppose that internal ADC are similar between differents BF506F

 

Can someone help me, please?

Thanks in advance

Maurizio

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