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F28377D-SEP: F280039C - SDFM Module can not be initialized

Part Number: F28377D-SEP
Other Parts Discussed in Thread: AMC1336, C2000WARE

I try to use the SDFM within the controller F280039C

I configure the SDFM as follows:

board.c 

My first problem is that when i step through the init code, it has no effect on the SDFM registers, i.e. the Master Filter Enable is never set.

I have connected an AMC1336 to the SD1 clk  (10 MHz clock is generated by EPWM1 and connected to SD_C1 (GPI035), data input is connected to SD_D1 (GPIO49))

When I set the the master filter enable manually, no data appear in SDDATA1 register.

Is there any reference project? Are there any known HW problems with the SDFM module?