I am access FPGA connected over EIM interface in iMX6 chip attached with the SGTL5000 audio chip.
The EIM registers are configured as follows:
EIM_CS1GCR1 : 00633887
EIM_CS1GCR2 : 1
EIM_CS1RCR1 : 1C020000
EIM_CS1RCR2 : 0
EIM_CS1WCR1 : 804A240
EIM_CS1WCR2 : 0
When I tried to read from audio device holding the BCLK as reference (which is set as 125MHz/4 BCD=4 ), at its each rising edge and display it on the ILA of the FPGA, I do not get the signals.
I have referred to IMx6 reference manual, and Applications Processors for Consumer Products imx document to see the examples of EIM Synchronous burst mode. But I would like inputs for my specific problem statement of getting audio data to FPGA via Burst mode EIM.