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jimmo / numato-mimasv2-pic-firmware

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UART pass-through doesn't work after power cycle #17

Closed toptensoftware closed 4 years ago

toptensoftware commented 4 years ago

Firstly, thank you for this great update to the Mimas firmware.

It seems that the UART pass-through only works after reprogramming the FPGA. If you power cycle the board, the UART no longer works (until you upload a new design to the FPGA - then it works again)

Is this a known issue and if so, any the chance of a fix?

Brad

toptensoftware commented 4 years ago

To confirm this wasn't a problem with my deisgn, I just re-routed the UART via a FTDI USB adapter connected to one of the GPIO headers and I can power cycle and it still works. Definitely seems to be a problem with the firmware.

toptensoftware commented 4 years ago

Please ignore... turns out this is probably related to running in a VM under VirtualBox. With real linux machine it works fine.

mtrx93 commented 3 years ago

I have same problem, there is no need to reprogram, opening port on ACM0 somehow activates ACM1

toptensoftware commented 3 years ago

Ah good to know. Thanks for the info.