[Coco] "super" ROM pak??

[Chad H]

Well I love the concept of being able to load the .ROM files at will without having to pull an EPROM, erase, then flash, etc...

I've been tinkering with the Atmega328 arduino environment for over a year now and, thanks to ideas and help from Mark Blair with Eagle PCB design, I've been separating the arduino board from the equation after prototyping several projects and just embedding the controller into my own pcb.  I even built my own arduino clone modeled after a pro-mini that takes a DIP atmega328 :)   I've been working with LCD's a lot and SD card access here and there, haven't gotten around to shift registers and external SRAM access though, but I"ve been reading up on them and I think I'm ready to tackle it.  I've got a vision of a single PCB that could hopefully fit in a cartridge housing, with a lcd screen, navigation buttons, microsd slot and power slot.  (I suspect the writing to the SRAM will have to be done with the CoCo off, so therefore external power required)

I've been looking on Digikey at some SRAM chips.  Could you recommend a chip or combination of chip with the appropriate SPI/parallel controller?

-----Original Message-----
From: Coco [mailto:coco-bounces at maltedmedia.com] On Behalf Of Sylvain Rousseau
Sent: Saturday, August 30, 2014 10:36 PM
To: CoCoList for Color Computer Enthusiasts
Subject: Re: [Coco] "super" ROM pak??

Hi Matt,

You did a great work!

I don't know if I will use it but I'm interested to see your work and study it for my own culture.

Regards,

Sylvain



Envoyé de mon ASUS Pad

Matthew Stock <stock at bexkat.com> a écrit :

>Oh, that was mine.
>
>I got the ROM stuff working perfectly, but swapping ROMs wasn't 
>particularly elegant.  I moved on to developing a prototype for a 
>floppy controller replacement, but got stalled for a while and now 
>there is a nice commercial version out there that does everything mine 
>was going to do and more.  I'm still poking around at building some fun 
>Coco stuff, but my time is constrained and so the pace is slow.
>
>I have the designs available if someone wants to build a ROM-only model 
>based around an Arduino and a small CPLD board.  If there's enough 
>interest I'll peel that stuff out and make sure it's functional.
>  -Matt
>
>
>On Sat, Aug 30, 2014 at 9:05 PM, Chad H <chadbh74 at hotmail.com> wrote:
>
>> I think I found a video of it here, but nothing more recent.  It's a 
>> year old.
>>
>> https://www.youtube.com/watch?v=A3vHKKITAlk
>>
>>
>
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