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FMCOMMS3: no TX (w/ no-OS software)

Question asked by suppamax on Aug 6, 2015
Latest reply on Sep 15, 2015 by DragosB



I am using the no-OS driver to test my FMCOMMS3 board.

I'm focusing on the TX side: I see there is some activity at desired frequency as the board boots, but it only lasts a few ms. The power seems also very low.

I am using 2015_R1 branch.


In my configuration I:


- set tx_synthesizer_frequency_hz = 1579000000UL (my receiver doesn't work at 2.4GHz)


I also tried adding #define DAC_DMA, to select dac_init(ad9361_phy, DATA_SEL_DMA, 1); but nothing changed.


If I activate CONSOLE_COMMANDS I can communicate over SPI, but it doesn't seem to bring anything.


Any suggestion?