Adding software flow control (XON/XOFF) to esp32/machine_uart.c

[mark-hoy]

During the compilation of LVGL + Micropython, the entire tree is pulled live and built. How do I patch in code to esp32/machine_uart.c ? I already have the code written a while ago by Mitch, so I just need to know the steps to either replace the file (or run patch on it?) during the build process. The Elecrow 7" esp32 panel has serial but lacks h/w flow control and we really need to prevent overruns of data on our serial communication line.

[asherevan]

You should be able to just maintain the file structure and place the replacement file (with folder structure) in the micropy_updates folder.

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[kdschlosser]

That is correct. This is the easiest way I could come up with to patch file in micropython while still keeping the submodule clean if using it for submitting PR's

[mark-hoy]

OK, trying that now. Thanks for the rapid response.

Mark