Hello! Steve Gray wrote: > Sounds great. I wonder if you can try substituting a 32K ram chip. > http://home.arcor.de/armin.diehl/eprsim/UM61256.pdf > It comes in "skinny dip" format which is smaller and might give extra > room on the board to add another chip to take advantage of it (if feasible) > I ordered these from ebay: http://www.ebay.com/itm/290815749900 I have some of these chips, mine are labeled KM68257 but the pinout should be the same. If they are to be used, a GAL will be beeded instead of glue logic because extra address decoding is needed. Both these chips will not fit then - the factor here is their length, not width. > Do you use any protoyping boards to do development (ie: 8-bit baby, > vannessa's board, etc). I'd like to use a solderless breadboard to do > some stuff (like I used on ColourPET), but connected to the cartridge > port, so something that lets you connect a ribbon from the port to the > breadboard. Any ideas? Currently I'm not. For smaller stuff I just solder it on a universal board. For bigger ones like this, I normally start with a PCB design first, order a prototype PCB, solder stuff on it, currect anby errors that are found and go for production PCBs. Regards, Michau. Message was sent through the cbm-hackers mailing listReceived on 2013-10-22 16:06:03
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