Re: [Amforth-devel] Butterfly problems

[Ian J. <ij...@sa...>]

Mike you might find the butterfly carrier from Ecros handy if you don't 
have one.

http://www.ecrostech.com/



On Tue, 16 Mar 2010, Mike Beach wrote:

> 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
>