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Topic: Programming 2560 with ArduinoISP? (Read 879 times) previous topic - next topic

CrossRoads

Quote

quite odd, picked up odd voltages too off the pins, from like .5v, or 1.25v

That sounds like you didn't set the pins as outputs, or you are looking at the wrong pins.

Post your sketch, and check this for analog/digitlal name to physical pin mapping
http://arduino.cc/en/Hacking/PinMapping2560
Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

MatCat


Quote

quite odd, picked up odd voltages too off the pins, from like .5v, or 1.25v

That sounds like you didn't set the pins as outputs, or you are looking at the wrong pins.

Post your sketch, and check this for analog/digitlal name to physical pin mapping
http://arduino.cc/en/Hacking/PinMapping2560

Yeah that is the pin mapping I am following...  I will check on it tonight, use my DSO Nano to figure out what's going on.

Could it simply be that the Arduino UNO as an ISP just isn't programming it properly?  I know I read something about 128k flash limit or something...

CrossRoads

Are you using NickGammon's programming sketch, or something else?
http://www.gammon.com.au/forum/?id=11635
http://www.gammon.com.au/forum/?id=11643

Your little LED blink sketis only 1 or 2K, yes?
I have a 21 page sketch when printed, its only 7K.
Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

MatCat

Yes only 1600 bytes, I am using the arduinoISP linked above...

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