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Potential Issue in I2C Timeout #592

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tay10r opened this issue Jan 18, 2025 · 0 comments
Open

Potential Issue in I2C Timeout #592

tay10r opened this issue Jan 18, 2025 · 0 comments

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@tay10r
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tay10r commented Jan 18, 2025

ArduinoCore-avr/libraries/Wire/src/utility/twi.c

Line 171 in c8c514c

if((twi_timeout_us > 0ul) && ((micros() - startMicros) > twi_timeout_us)) {

If micros overflows after the start and before the end of this read function, it will overflow and possibly return before the timeout.
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