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Topic: Standalone 3.3v Atmega 328p - [working] (Read 13379 times) previous topic - next topic

fkeel

@ralphd I think your suggestion helped me solve it. I have yet to do some more testing, but it looks promising.

This tutorial: http://arduino.cc/en/Tutorial/ArduinoToBreadboard is somewhat misleading.

This is how it worked for me

1) Out of the box, AVRdude was *not* able to recognize the Atmega328p without an external timing source, or with a 8mhz resonator.

2) If I connect a 16Mhz crystal (with 22pf caps) as a timing source, AVRdude says everything is fine.

3) Once I had that connected, I switched to the Arduino IDE and burned the "ATmega328 on a breadboard (8 MHz internal clock)" to it (which I got from the link I posted above.) (Note that the Atmega328p is still connected to the 16mhz crystal while burning the bootloader)

4) I disconnected the crystal,  AVRdude is able to recognize the IC.

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EDIT: I have blinked an LED and sent some bytes back and forth via serial. Things seem to be working !!

http://embodimentlabs.tumblr.com/
http://paulstrohmeier.info/

ralphd


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