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DMA Bus error on source

Question asked by florijan japelj on Nov 11, 2014
Latest reply on Nov 13, 2014 by Kerry Zhou

Hello!

 

I am using MKL25Z128  (mask 1N97F). The FTM timer triggers DMA ch1 which should copy PIT_CVAL0 (32 bit current value) to a 32 bit variable in RAM. But the DMA returns Bus Error on Source. If I change the source form PIT_CVAL0 to ordinary variable in RAM it works fine. My question is: Is it possible to use DMA to transfer PIT_CVAL0 (32 bit current value) to a variable in RAM using FTM trigger?

 

Best regards,

Florijan

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