输出可读的十六进制，带有来自串口的printf [英] Output readable hex with printf from serial port

问题描述

大家好，



i尝试将数据从串口写入终端屏幕。

数据将被格式化并打印出来使用printf命令



printf（Data％x，&c）;



该程序将是正确的...它告诉我十六进制。

但是打印的十六进制不正确...十六进制的值有错误。



当我尝试将原始数据写入文件并阅读时：



cat / dev / ttyUSB0 | xxd



输出是否正确。



任何人都可以帮助我吗？



通过

Hi all,

i try to write data from serial port to my terminal screen.
The Data will be formated and print out with the printf command

printf(" Data %x ",&c);

The programm will be correct... it shows me the hex.
But the printed hex are not correct... The hex have the wrong value.

When i try to write the raw Data to a file and read this with:

cat /dev/ttyUSB0 | xxd

the Output will be correct.

Can anyone help me?

By

推荐答案

Quote：

printf（Data％x，& c）;

printf(" Data %x ",&c);

可能上面的行应该是

Probably the above line should be instead

printf(" Data %x ", c);

但是很难提供帮助没有看到更多的代码。

However it is difficult to help without seeing more code.

THX ...

那个标志&是我的错误......

THX...
That Sign "&" was my mistake...

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