Why can't the signal collected by stm32 be displayed when it is transmitted to the computer through 485, but it can be successfully transmitted through the serial port?

呼呼呼呼qwe

Why can't the signal collected by stm32 be displayed when it is transmitted to the computer through 485, but it can be successfully transmitted through the serial port? [Copy link]

I collected 3 voltage signals and wanted to transmit them to the computer's serial port assistant through 485, but nothing happened. When the hexadecimal display was checked, the integer part would be displayed. . . Please help me.

huo_hu

You didn't convert it into characters?

石玉

It is best to post the key points and describe the problem in detail.

ywlzh

You should adjust it slowly by yourself. You can't see the rainbow without going through the wind and rain.

suoma

Transmitted spaces?

ienglgge

Write a test program. Send some certain data in the same format as the voltage data. See if there is any difference between the result and the sending.

呼呼呼呼qwe

huo_hu posted on 2017-3-8 15:55 Then you didn't convert it into characters

Can't you transmit decimal numbers directly?

17er

Is it a baud rate issue?

huaiqiao

I tell you, you can't display it in the serial debugging assistant this way. Buy a small USB to 485 plug-in board from the Internet, it's not expensive, I bought it for 3.9 yuan. I used this method to display it in the serial debugging assistant