jbn@glacier.STANFORD.EDU (John B. Nagle) (03/17/88)
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