STM32 power-on does not reset problem-EEWORLD

Collect

I made a stm32 board. The display was abnormal when powered on. After manual reset, the display was normal.

The reason finally found was

The power-on speed of the external device is slower than that of the MCU. The MCU operates the external device before it is ready, causing the system to not work properly.

Peripheral as EEPROM

EEPROM power-up is slow

Adding a delay of 10ms before reading EEPROM solves the problem of running away at power-on!

Keywords：STM32 Reference address：STM32 power-on does not reset problem

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