问题
I'm automating a configuration process for an embedded board. To enter the setup screen I need to send "Ctrl-C" command.
This is NOT to interrupt a process I'm running locally, KeyboardInterrupt will not work. I need to send a value that will be interpreted by the bootloader as Ctrl-C.
What is the value I need to send?
Thank you
回答1:
IIRC, Ctrl-C is etx. Thus send \x03.
回答2:
You should send a character with the ASCII code 3:
serial.write('\x03')
回答3:
\x03
Which means 'end of text' or 'break' is what Ctrl+C sends.
来源：https://stackoverflow.com/questions/7018139/pyserial-how-to-send-ctrl-c-command-on-the-serial-line