About Valentin CRETTEZ--BOUARD

Valentin CRETTEZ--BOUARD · 2021-11-10

Hello,I'm having a STM32F407 and when I'm using the UART connectivity, connected at another device unplugged and with an unknown state, this unknown state cause, sometimes, an abnormal starting of my STM32F407.My other device is a Raspberry Pi, which...

Valentin CRETTEZ--BOUARD · 2021-11-10

Yes, it's can be tried but, it's in an electronic card that i can't already use another gpio in my STM32. And I will edit my topic cause It's my Tx (STM32 part) which cause a problem, when I unplug it at the start, and sometimes after, I plug it into...

Valentin CRETTEZ--BOUARD · 2021-11-10

It's directy by connected, the UART of the STM32 and The serial port of my Raspberry, not by using TTL into USB converter.Thanks for your answer, I have already connected one, 1k resistance in series on Rx lines and Tx lines, but no improvement appea...

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Do you have some idea to setting-up an unknown state, caused by another device slower than the STM32 to be started ?

Re: Do you have some idea to setting-up an unknown state, caused by another device slower than the STM32 to be started ?

Re: Do you have some idea to setting-up an unknown state, caused by another device slower than the STM32 to be started ?