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Topic: Arduino 2560 Problem (Read 817 times) previous topic - next topic

CrossRoads

Your question kind of gave the impression you were connecting all 8 to your PC at once, so each would have a different COM port.

You seem to only connect one a time.

Have you tried NickGammon's programmer to make sure they are all bootloaded the same and have the same fuse settings?
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.

jl-p

Yes i did. I verified all the settings and only the clock and lockbyte were different.
I changed the lockbyte of the not working one's but without any luck

Kind regards

Johan

jl-p

when i upload a new bootloader with the nick gammon bootloader. and verify it it looks oke.
when i upload my program the bootloader verify tool notice about 3000 errors.

is that because i write a lot of progmemory or because a program is loaded.

Johan

jl-p

I finally found it.
It was a realy stuppid misstake.

I read in my code the language value from the eeprom.
But because this where new arduinos the value was default so not 0 1 or 2
because i didn't check the value i read the code requested a complete wrong progmem value.



Johan

CrossRoads

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.

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