Has anyone designed a custom PC/104 board? I may need to do that soon. Am I right in assuming that the PC/104 (not the plus) is essentially the same as the ISA bus in pin functions? All I need is to define some I/O mapped input and output registers to interface with my custom electronics.
-Robert Scott Ypsilanti, Michigan (Reply through this forum, not by direct e-mail to me, as automatic reply address is fake.)
On Thu, 16 Dec 2004 23:30:18 GMT, snipped-for-privacy@dont-mail-me.com (Robert Scott) wrote in comp.arch.embedded:
PC104 is very similar to the ISA bus, although the bus drive current requirements are less and there are limits as to how much power a peripheral board can draw from the bus.
You can download a copy of the standard here:
-- Jack Klein Home: http://JK-Technology.Com FAQs for comp.lang.c http://www.eskimo.com/~scs/C-faq/top.html comp.lang.c++ http://www.parashift.com/c++-faq-lite/alt.comp.lang.learn.c-c++ http://www.contrib.andrew.cmu.edu/~ajo/docs/FAQ-acllc.html
Yes, it really is that trivial. Almost anything will work. Watch the trace lengths if there are other peripheral boards in the system or you want to sell it, if it's just for you you can break a lot of rules before things stop working.
Paul Burke
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