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Serial Dongle
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Serial Dongle

by serialdongle on Wed Sep 29, 2010 10:15 pm

I am having quit a hard time trying to program an attiny85 or attiny2313 using the serial SpokePov dongle. I am running debian, using avrdude 5.10, and a keyspan usb-serial device. I am able to successfully program chips if i plug the dongle into SpokePOV header, which means the dongle is working and the keyspan device is working as well. If, however, I try and connect directly from the dongle to a chip on a breadboard, i get the usual "AVR device not responding". I have 4 wires coming from the dongle (http://www.ladyada.net/images/avrtutori ... pinstd.jpg), MOSI, RESET, SCK, and MISO. These are connected to pins 5, 1, 7, 6 respectively on the attiny85. I am issuing the same command that worked while using the SpokePOV "avrdude -p attiny85 -P /dev/ttyUSB0 -c dasa -U flash:w:test.hex. Lastly, I am powering the attiny88 using 2xAA

Is there something painfully obvious that I am missing?
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Re: Serial Dongle

by adafruit on Thu Sep 30, 2010 12:23 am

the usb-serial adapter is probably what's killing it. see if you can find a computer with a real COM port on it

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Re: Serial Dongle

by serialdongle on Sun Oct 03, 2010 5:51 pm

Thanks for the quick reply and I'm sorry to have wasted your time. It turns out that I had rows 1 and 2 of the 10-pin cable reversed (http://www.ladyada.net/images/avrtutori ... pinstd.jpg)
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Please be positive and constructive with your questions and comments.