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From: cramer@mksol.dseg.ti.com (Norman W Cramer)
Subject: Re: Need help with Intel's 8051 ucontroller
Message-ID: <1994Oct3.132153.27758@mksol.dseg.ti.com>
Organization: Texas Instruments Inc
X-Newsreader: TIN [version 1.2 PL0]
References: <rsingh.781145524@zephyr.aem.umn.edu>
Date: Mon, 3 Oct 1994 13:21:53 GMT
Lines: 42

Rajeev Singh (rsingh@aem.umn.edu) wrote:



: Hi:

:  I'm fascinated with the 8051 microcontroller after reading the FAQ posted
:  by Russ Hersch and  want to build something simple with it to start with and
:  then go from there. I am a graduate student in Mechanical Enginneering  with 
:  a fair idea of electronics.
:    
:  I contacted Intel who supplied me with loads of documentation on their MCS-51
:  family of ucontrollers. Great guys !!

:  Anyway, the problem is that now i have this bunch of discrete pieces of 
:  information which i can't crystalize into a project to build.

:  Let's say, for starters, that i want a circuit that sends the string 
:  "Hello, world\n" thru RS232 to my dumb terminal at 300 baud. To make the
:  software very simple let the circuit send this string only once after
:  power-up. Writing software is not a problem, what i need help on is the 
:  hardware.

:  What is the bare-minimum parts-list for this circuit ? 

BASCOM sells a 8051 board for around $20.00 without the parts.  All of the parts
will run about $30.00 so for ~$50.00 you can have a functioning 8051 computer.
I have used this board with minor modifications for about a year.  It is not the
minimal parts count but it is easy to get running.  

For the minimal parts count, see the Phillips 8051 databook, they have a minimal
scematic that you can build to.  I also have a design for a minimal 8051 that I
intend to use in my embedded systems (BASCOM for development).  It has been 
built and tested.  If you would like a copy of the schematic, e-mail me at
cramer@dseg.ti.com  I'll have to dig it out and I don't think I have a 
postscript copy of it.


Regards,

Norm

