[sdiy] serial EEPROM?

John Speth johnspeth at yahoo.com
Mon Sep 26 17:21:52 CEST 2005


> 2. presumably i don't want to run the main program
> loop from the EEPROM as
> this would slow everything down quite badly - so
> some kind of boot loader to
> get the time-critical code into my SRAM? anything
> important or non-intuitive
> i should know about this?

You're on the right track.  AFAIK, the Z80 boots from
ROM it expects to see at some specific bus address and
not from a serial memory device.  You'll need at least
a boot EPROM and enough RAM to load your code into and
run it from.

You might want to reconsider your design and port it
to a flash programmable device.

JJS



		
__________________________________ 
Yahoo! Mail - PC Magazine Editors' Choice 2005 
http://mail.yahoo.com



More information about the Synth-diy mailing list