RX-TX firmware loopback

[tsarik]

Hi,
I'm trying to do RX-TX loopback in fx3
dmaCfg.prodSckId = CY_U3P_PIB_SOCKET_0;
dmaCfg.consSckId = CY_U3P_PIB_SOCKET_3;

and its working, but getting dropped signal on TX.
FPGA signals show should_tx/can_tx much smaller then should_rx/can_rx
tried different samplerates, but same result always.

any ideas?

[bpadalino]

Are you doing FX3 firmware loopback? I don't think that has anything to do with the FPGA and is really just an internal loopback in the FX3.

I am actually surprised the FPGA gets the samples at all.

If there is an issue, I don't think the FPGA will be the place you will find the issue with FX3 firmware loopback.

Brian