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Are you using a powered hub? (The Pi doesn't source a lot of current.)
On Sat, Sep 8, 2012 at 12:28 PM, Eric Scott <kc7klz@...>
I used a USB to Serial adapter. I did get it to work sort of. I was attaching to my Kantronics KPC-3 through minicom. I could get it to recognize the serial port, but when I slowed it down to 1200 baud, it crashed. (locked up) I had to log into the unit via SSH and tell it to re-boot to get the unit to recover. I'm getting a TTL to serial adapter, and I'm going to hook that up to the GPIO ports. I'm thinking this will be a
little cleaner than an adapter.
I can get it to work on my Ubuntu box with the same cables, using the same software. So I know it should work.