1 Nov
2008
1 Nov
'08
7:07 a.m.
Alexandre Souza wrote:
Old computers with serial port? Take a look at the
1488 and 1489 chips,
they have to be supplied with +12 and -12 tensions. Don't forget old RAM
memories who uses -5 volts...
I'v +12 and -12V connected, but I doubt the Z80-SIOs are using this voltage.
RAMs are 2114 4K S-RAM - so no -5V...
--
Oliver Lehmann
http://www.pofo.de/
http://wishlist.ans-netz.de/