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[EE335] Interfacing SD card with PPI

Question asked by chrisrdlg on Mar 17, 2011
Latest reply on Jul 22, 2013 by Nabeel

Hi (again),

 

I tried to interface an SD card with the PPI of the BF527 (according to the EE335 application note).

All the signals are correct but the SD card never answers (see the picture with the command 55).

When I launch the debug, he's stuck in the ReceiveResponse function (defined in function.c) waiting on ReadyForInput (because I never catch the interrupt).
I don't know where is my mistake...someone can help me?

 

thanks,
chris

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