the uart's data will be garbled


When I read the uart’s data through the pin 8,9 and 10, the data will be garbled, but it is normal display of text data in the windows system,Why?

Thank you !

Typically it means the speed or other settings are incorrect…although very long wires could be picking up noise. Is this set to speed 115200, 8 bits, no parity, and 1 stop bit (115200 8N1)? Your program which views the data needs to use those settings.