232 communication, every byte is added with 0x40, who knows what the problem is?? Thank you!

uni_apollo

232 communication, every byte is added with 0x40, who knows what the problem is?? Thank you! [Copy link]

I use 51 plus max232 for serial communication. The program is tested on the development board and it works fine. When I run it on my own wrench, the output is 01234567890, but the actual output is qwstuvwxyp. I checked and it should be that 0x40 is added to each byte, that is, the second bit is set to 1. Does anyone know what the problem is? Thank you!

linguoxian

I have asked a related question in the forum before. You can fine-tune the value of the timer... Try it

wangzicc

Thank you, I see, the development board is 12M, and my board is 11.0592. This may be the problem.

bogedahan12

Fine-tune the timer value...