Boot0 short by probe to PB7 or PB8

[Bruce4]

Hi,

is the STM32F103RET5 can be damage, when boot0 short to PB7 or PB8 by oscilloscope probe for short time?

After I fix the board the STM32F103RET5 work ok.

is boot0 in float is 3.3v?

is 32kHz input short to input 8MHz can cause damage to STM32F103RET5?

Thank you.

[TDK · Accepted solution]

BOOT0 is floating and can be shorted to any pin with 3V3 or less without issue.

> is 32kHz input short to input 8MHz can cause damage to STM32F103RET5?

Unclear what you are asking here. If the HSE bypass clock is incorrect, the chip may not work but will not be damaged, provided the voltage levels are within range.