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 ?????