BeagleBoard Serial Connectivity

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How to get a serial connection to your new BeagleBoard console? Here's a [long version] and a [longer version]. And there's the short version for people in a hurry:

  • minicom
  • 115200
  • 8N1
  • no flow control (either software or hardware)

And depending on how you're connecting, the device file name will be something like ttyS0 or (if you're connecting via USB) ttyUSB0. To verify this, check /var/log/messages after you physically connect.

And remember that you need a null modem cable in there somewhere -- it's a common mistake to forget that.

NOTE: Recall from the shopping list page that, if you're using a USB-serial converter, some of them simply don't appear to work properly. I tried a Prolific-based converter (the "pl2303" kernel module) and never got it to work once. On the other hand, my Targus port replicator is rock-solid. So if you're having trouble, try a different converter before wasting a lot of time debugging anything else.

P.S. I purchased a second USB-serial converter, and it worked fine. The first one, which used *exactly* the same driver, did not work at all. Go figure.

Return to main BeagleBoard page.

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