9 Sep
2005
9 Sep
'05
7:25 a.m.
I saw this article in the latest (Sept. 2005) 'Circuit Cellar' and
thought some of you 1802 fans might find it interesting:
*Replacing a Legend: *Build a Functional Equivalent to the CDP1861*
*/Bob Armstrong
/Bob built a functional equivalent to a CDP1861 video controller chip so
he could play video games on his COSMAC Elf replica. The design includes
two ATF22V10 GALs and a few standard 74HC chips. Ready to replace some
random logic? /p. 58/
-James Nugen