Re: [techtoolslist] Understanding memory locations

Joe,

I didn't get a DB25 connector or plate when I picked this up either. Simple
matter of just wiring up a few pins.

Schematics for the RS233 board are in the back of the Fluke9010A Micro
System Troubleshooter Workbook.PDF that should be on the FTP site (Johns').

A5J2
1 - TX - to DB25 pin 2
2 - RX - to DB25 pin 5
3 - RTS - to DB25 pin 4
4
5 - GND - to DB25 pin 7
6 - TR - to DB25 pin 20

RTS & TR are pulled high on the card so you probably can run 3 wire RS-232
no problem.

Kev

> Kev,
>
> I received the board today. Thanks! Now how do I connect this to my
> computer? I was expect something with a db-25 connector on the back.
>
> Thanks,
> Joe
>
> -----Original Message-----
> From: Kev [mailto:KKlopp@erols.com]
> Sent: Tuesday, September 16, 2003 10:26 AM
> To: techtoolslist@www.flippers.com
> Subject: Re: [techtoolslist] Understanding memory locations
>
> Atari manuals are probably the best for this.
>
> Mame is not bad but not always correct.
>
> Ultimately you will want to learn binary math & how addressing is done
> so you can look at a schematic & determine the locations of various
> hardware yourself.
>
> Kev
>
>
> I am having a hard time understanding how memory locations and
> how registers work,, is their a book or courses that anyone can suggest
> , no one teaches this any more, I took a digital course at the local
> collage ,they just touched on this part not enough to really understand
> and they did not go over memory
> I want to be able to use my fluke 9010 to trouble shoot these
> arcade boards,, but when it gives loop info how to trace this back to a
> chip ,, any help would be great ,
> how did all of you learn this ?????
>
Received on Wed Sep 17 23:07:47 2003