We need to boot from the SD card to DMA mode such that the signal to the DAQ2 is routed from our model in the FPGA. I have been given (Travis) the following instruction:
Ok, so basically you need to set the data source of the TX interface core to DMA. This is done through the DAC_DDS_SEL registers: https://wiki.analog.com/resources/fpga/docs/axi_dac_ip
From iio_reg it would be: iio_reg axi-ad9144-hpc $((0x418 + i * 0x40)) 0x02
where i is the channel (0,1,2,3)
I have put the above in the init.sh file in the linux portion of the SD card in the /mnt folder.
It doesn't work.
What am I doing wrong please?