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MPC5777C ADC MCAL configuration problem

Question asked by Ni Zhang on Mar 23, 2018

Hello, currently I have a issue with MCAL ADC and DMA configuration:

Is it OK to configure two groups that use different FIFOs inside the same ADC hardware unit? And each group use different Hardware trigger sources.


In unit 0:

Group 1 has channel 1, use FIFO 1 and hardware triggered by ETRIG1.

Group 0 has channel 0, use FIFO 0 and hardware triggered by ETRIG0.  I configured two signals with the phase shift to feed the ETRIG0 and ETRIG1.

Problem: only group 0 is triggered, group 1 has never been triggered.


Is there any way that I can deal with this problem?

Thanks for the help