Resolved! Boot0 short by probe to PB7 or PB8
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?...