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which usart is used for bootloader in F103RC ?

Question asked by karakaya.mehmet on May 15, 2017

Hello dear forum,


In my F103RC project I need to connect USART inputs RX2 and RX1 to each other

( I have my PCB produced already, thats why )


I want use flash loader demo with USART1 


my question ;


which usart is used other than USART1 during bootloader function


does RX2 have a function during bootload ? - ( I want it to be floating input without a function during bootload )


is this possible ?


thank you