Path: utzoo!attcan!uunet!wuarchive!udel!eplrx7!milbouma
From: milbouma@eplrx7.uucp (Mark Milbourne SCD)
Newsgroups: comp.misc
Subject: Re: 8031 Tools
Message-ID: <1990Oct24.193358.18796@eplrx7.uucp>
Date: 24 Oct 90 19:33:58 GMT
References: <1990Oct23.145919.2449@fulcrum.bt.co.uk> <4455@rsiatl.UUCP>
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I use the Pseudo assembler too.  I obtained it from the Circuit Cellar BBS
which is run by the guy who wrote the Circuit Cellar column in Byte
Magazine.  He had some projects dealing with the 8031/51 family and so made
the assembler available on his BBS.

For about $250 you can get a real 8051 devlopement board from Intel.  It
has the processor and required supporting components and an external serial
port for hooking up to a host PC.  The 51 ROM has monitor code built in to
talk to the host PC software.   The host PC downloads the code into RAM on
the devlopment board and then you can examine/modify memory and register while 
your code is executing.  You can also set breakpoints and step through your
code.  The only hitch I had was I had to write a quick-and-dirty GW BASIC
program to convert the object files from the Pseudo assembler to a format
readable by the Intel host PC software (or spend several hundred $ for
Intel's assembler).  The only thing you have to supply extra is a 5/12/-12V DC
power supply.

I've been real pleased with it and have used the setup to develop a MIDI
interface into a multiplexed relay system for a friends theatre pipe
orgran.  I was going to get a simulator program too, but needed to do
prototyping with real hardware hookups, so I went with the hardware
solution and haven't needed a software simulator.

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