add option to disable SWCLK/SWDIO

microsoft / jacdac-stm32x0

Jacdac implementation for STM32F0 and similar

MIT License

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Closed jamesadevine closed 3 years ago

jamesadevine commented 3 years ago

Should be able to reprogram modules by holding them in reset at power on.

jamesadevine commented 3 years ago

This is particularly required for multiplexed GPIO. SWCLK w/ pull down combined with JD_DATA brings the voltage down to 2.5V.