Unable to send input from USB to serially connected hardware using Minicom

ubuntu usbserial
iMSivam picture iMSivam · Sep 25, 2012 · Viewed 22.4k times · Source

I'm trying to communicate with my hardware board from a Ubuntu installed PC. I've used a USB to serial cable, and the serial cable is connected to the hardware and the USB is connected to the USB port of my desktop. I used minicom and it works well like I'm able to see the output of my hardware. But the issue is I'm not able to enter anything. It is not recognizing my keyboard input. Without that its totally useless. Could someone help me in this issue.

Answer

elomage picture elomage · Sep 25, 2012

Knowing what the device is would help to answer this question.

If you see good output from your device then most likely the software side of things work well. This is good news. The problem could be:

  • The device does not echo your input. Does it react to your input in any other way? You may turn on the local echo feature in the minicom software if you want to see your input while the device does not support echo.
  • The device is faulty. This could be a hardware problem such as bad contact, or a firmware issue with the device.

You may also try alternative software to minicom. This will not fix the problem, but may help you to find the cause more easily. One such software with GUI is gtkterm. Install and use like this. All options and configuration are avbailable through menus:

sudo apt-get install gtkterm
gtkterm

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