[comp.sys.nsc.32k] ROM Monitor and Serial lines.

ian@sibyl.eleceng.ua.oz.au (06/03/90)

Some time ago, I posted some patches to Bruce's monitor (mainly a sed
script and some make file changes) to allow it to be built with all
the GNU tools. At the time I added a disclaimer that I couldn't
actually test the code because my pc532 wasn't working yet. Well, it
is working and I have tested it (and it works).

It seems that the ROM monitor does not raise DTR on the serial ports.
If you have defeated DTR handshaking on whatever you have your pc532
connected to, this is not a problem. I think the appropriate change
is in dblib.s near the end of db_setbaud where it should be

        movb	h'f,14(r2)	; set RTS and DTR on

instead of

	movb	h'3,14(r2)	; set RTS on


Ian Dall.