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From: jbn@glacier.STANFORD.EDU (John B. Nagle)
Newsgroups: comp.sys.m68k,sci.electronics,comp.sys.amiga,comp.sys.mac
Subject: Signetics M68070 support software needed
Message-ID: <17363@glacier.STANFORD.EDU>
Date: 17 Mar 88 00:49:29 GMT
Organization: Stanford University
Lines: 20
Keywords: 68000 68070 monitor


     Is anyone aware of any support software available for the Signetics
M68070, used in a minimal diskless embedded configuration?  I'm looking for
a debug monitor with download capability that can be put in a ROM,
so I have something with which I can cold-start the machine and load other
programs prepared elsewhere.

     The Signetics M68070 is a CMOS microcontroller instruction-compatible
with the M68010.  In addition to the usual 68010 features, it also has
an on-chip UART, timer channels, I2L bus interface, MMU (!) and other useful
goodies needed in control applications.  The chip was developed for the
Phillips interactive laser-disk player, but is available from Signetics
for other purposes.  Unfortunately, Signetics has no support
software available for the part.  But since it is a M68010, if something
can be found that has enough smarts to talk to the UART, we should be
able to cross-compile for it and download if we can find a debugger
/downloader to get us started.

     It's a real part, by the way; we have one.

					John Nagle