Re: [Amforth-devel] Butterfly problems

[Mike B. <mi...@mj...>]

The .eep file was indeed the solution - yesterday. Thanks to Matthias for pointing that out.

While happily starting to explore amforth, I must have done something to upset the 
Butterfly. I'm now thinking that's an apt description for its ruggedness! After erasing flash 
using PARALLEL programming, most bytes read back as DF; fewer when run at 5V, and all 
correct at 5.5V. But even there, it could not be programmed. Always the same error: some 
bytes were $20 less than required, so somewhere in the chip bit5 is being held low. Also, the 
battery has been dragged to below 3.0V. ESD? Finger trouble? Can't be too careful around 
this thing. I'll await a new Butterfly (or just the chip if I can find one) while on holiday for the 
next three weeks.

Thanks for your notes, Ian. I'll have a look at your posts, and take the LCD and ADC as a bit 
of a challenge. For this project though, I'm expecting to use a separate 20x4 LCD, and 
external ADCs via a cable.

Mike



Hi Mike,

You might look at my earlier posts on the butterfly.  Possibly the changes 
I had to make have been integrated into the source tree now.  I'm pretty 
much the begginer though and the work I was doing was all under FreeBSD 
without AVRstudio.

I don't think I was ever able to get the LCD working correctly and I've 
lost momentum.

I'd be interested in your progress.  Let us know how it goes and 
especially if the LCD and AD words are working for you.

Ian