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The reset value of GPIOB register of STM32F401RCT6

Pzhu.1
Associate II

When I simulate STM32401RCT6 with IAR,the MCU is on reset state;IAR shows the value of GPIOB register :ODR=0x00000280;but refer to the reference manual ,the reset value of GPIOx_ODR=0x00000000.

Did I do something wrong when simulated?

Thanks very much.

0693W000003RfuzQAC.png0693W000003RfuBQAS.png

1 ACCEPTED SOLUTION

Accepted Solutions

None of those registers should be 0x280, so there is some code which wrote to them, or something is wrong with your IDE.

JW

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1 REPLY 1

None of those registers should be 0x280, so there is some code which wrote to them, or something is wrong with your IDE.

JW