SDU logic board v6 SWD SWCLK  [SOLVED]

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catphish
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SDU logic board v6 SWD SWCLK

Post by catphish »

I notice that the SDU logic board does not appear to use external pins 14 and 16 (labeled as RS232 TX and RX). I would like to bridge these pins to SWD and SWCLK to make the board externally programmable. Is there likely to be any problem doing so?

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Re: SDU logic board v6 SWD SWCLK  [SOLVED]

Post by catphish »

I've made this modification and it works correctly. Pins 14 and 16 can now be connected to an STM32 programmer. I intend to use this to develop and debug firmware, but it could also be useful for anyone else who wants to make their inverter un-brickable.
PXL_20220404_103408622.jpg
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