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Dorking around

Wed, 09/01/2010 - 22:50 — pmwasson

I went through the Arduino Cult Induction on Sunday and had a good time (once I got to the correct address). I was so happy, I went to Surplus Gizmos and bought another Dorkboard to play with. However, the microcontroller (Mega8) I bought didn't have the bootloader installed. So I tried to use my working Dorkboard to burn the bootloader onto the new Dorkboard. It didn't work. I got a verification error on the first byte.

I was adapting the instructions here: http://arduino.cc/en/Tutorial/ArduinoISP

Anybody have some helpful tips or suggestions?


Comments

Thu, 09/02/2010 - 00:35 — scott_d

Dorkboard as ArduinoISP programmer

I'm not sure exactly why (haven't had time to try to track it down) but various people have tried to use the Dorkboard as an AVR programmer using the ArduinoISP sketch. As far as I know, no one has succeeded.


Thu, 09/02/2010 - 04:36 — feurig

I will look in to this in the next few days.

In the mean time I bet someone in the area can get you a 328 with a bootloader


Thu, 09/02/2010 - 17:27 — pmwasson

Thanks for the replies

Maybe the pullup on reset is too strong? I'll try removing R2 on the target and see if it helps.


Thu, 09/02/2010 - 17:39 — scott_d

Reset pullup

I doubt that it is the reset pullup. That is pretty standard on all arduinos/clones (10K). I've been wondering if it is the way the LED is set up on pin 13 (PB5 which is SCK) on a DorkBoard. But I haven't looked into it. I know I tried to help someone get a similar setup to work at a recent DorkBotPDX meeting and didn't have any luck. Gave up and just programmed his chips with a regular AVR programmer. But I've never gone back and tried to figure out why it didn't work. In theory, it certainly should be possible to get AVRISP working with a DorkBoard.

If you still need your chip programmed when the next Monday meeting rolls around, I'll bring a programmer. Scott


Thu, 09/02/2010 - 19:20 — pmwasson

Thanks! I'll try removing

Thanks! I'll try removing R1 on both boards and see if that helps.

I'll be out of town next Monday, but I can try to go to the next meeting after that if I still need help.


Thu, 09/02/2010 - 19:21 — scott_d

Next Meeting

The next meeting is a week from next Monday. They are every two weeks and the last one was last Monday...