[sdiy] working with EPROMs

[ASSI]

On Friday 12 November 2010, mark verbos wrote:
> I've been looking at some 70s delay schematics that use EPROMs to create
> all of their timing signals for the converters and rams and everything
> and it makes me wonder how you create the data for those.

In the 70s you probably sat down with paper and pencil.

> I have a
> burner, but the only way I know of to create the binary files is with
> the Wiard/Darwin Grosse WAVE256 application. I mean, if I made some
> graph paper with 256 lines each way I could draw the timing that I want
> and then enter it line by line into WAVE256 in the "Numeric" section,
> but there has to be a better way. My googling has not gotten me
> anywhere. Does anyone have any suggestions? Chris Moore, the man behind 
> Ursa Major, mentions punch cards in his history section, but there must
> be some software...other than just HEX editors... right?

What you're after is an assembler for a microcode sequencer, but I think 
you'll have to write it yourself.

Condensing bitmaps into data is not all that difficult if you use one of the 
portable bitmap ASCII formats as an intermediate representation -- some 
editors can create them directly, otherwise use the netpbm tools.  You will 
have to do some light scripting (I prefer Perl for things like that).


Achim.
-- 
+<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+

Waldorf MIDI Implementation & additional documentation:
http://Synth.Stromeko.net/Downloads.html#WaldorfDocs