semi-homemade micro

Chuck Guzis cclist at sydex.com
Sun Nov 13 19:33:32 CST 2005


On 11/13/2005 at 5:19 PM woodelf wrote:

>>Want to try an emulation project?  take a 8048 or 49, strap EA 
>>(uses external rom then) and write a program to make port 0 and 
>>some latches and stuff on the bus port look like a version of
>>your favorite CPU of any word length.  Sure it will be slow 
>>(8049 @11mhz run instructions at 1.3us) but different! hang 
>>ram rom and IO even front pannel on the emulation and you have
>>anything you can imagine and fit in 4k or eprom and 128bytes 
>>of internal ram (8049). 

Why not something like an Atmel ATMega?  Fast and cheap.

Cheers,
Chuck




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