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What is the default pin config for a GPIO that has not been tampered with in FW? When I measure the pin I see about 340mV.

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GPIO-EXTI

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Dvorak.PeterBest answer

Associate II

> When I measure the pin I see about 340mV

For floating pin 340mV seems high (for 10M input DVM )

Repeat measurement referenced to VDD

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Floating Input

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Dvorak.PeterBest answer

Associate II

> When I measure the pin I see about 340mV

For floating pin 340mV seems high (for 10M input DVM )

Repeat measurement referenced to VDD

Most pins are floating input. Pins used for SWD/JTAG are in those modes by default.

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