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UART data not matching

Ranjeet Singh
Senior

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data on serial  monitor

 

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tera term setting 

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what is the reason of data mis matching ?

 

 

10 REPLIES 10

How exact are you wiring this? Using the ST-LINK VCP, or an external dongle or converter?

The pin outputs are at CMOS level, not compatible with RS232 levels/connectivity.

Send a 0x55 pattern repeatedly, check signal with a scope, confirm baud rate, ie 4800 Hz squarewave is 9600 baud.

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