I had customized RFDC IP block in the past, but I have re-installed UHD since to try and resolve this transmit issue. I had just compiled it with the default settings, except for my custom yml file and custom block. The only difference is when I run with vs without the GUI option, without transmits. With the GUI option, the light next to the port does not even turn on…its strange.
I guess it would be helpful to know how the indicator light actually works, is it directly controlled by the FPGA, or is there a separate circuit checks for a voltage on the port, like a voltmeter. Checking the verilog, I noticed some indicator LEDs look like they are controlled by the FPGA (PPS, QSFP) but I could not see anything regarding the RX/TX indicators.
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