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Topic: old sketches not being overwriting on board (Read 894 times) previous topic - next topic

Onsan

Hi,

I seem to be having a problem with parts of old sketches that have been uploaded persisting in new uploads. eg: an earlier sketch had a custom character, now i've uploaded a completely new sketch and the custom character has popped up.
the problem has now got to the stage that the sketches a just coming out garbled on the LCD.

Is there some way to ensure the memory on the board is wiped clean?
Or is there some other problem i'm missing?

Details;
1280mega
4x20 LCD (web4robot)
16 key keypad

Cheers,
Paul.

Onsan

never mind, it seems to be a problem with arduino 21, i go back to using 18 and it runs fine.
don't know why, but i'll stay using 18.

Cheers anyway.

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