April 2004 - TechToolsList - listserv.classicarcade.com

Re: RFC
by mike＠the-coates.com 30 Apr '04

30 Apr '04

well, I'm sure you have throught of it already, but can we have bit masks for ram - so you can check memory where only 3 or 4 bits are populated (colour ram on some games for instance), also adding a mask to a ram area would allow you to ID the actual chip e.g. galaxians 4000-43FF mask 0f would isolate a single ram chip, obviously 4000-43FF mask F0 would be the other chip. either that or the ability to ID chips in a memory area 4000-43FF mask 0f = 7P, mask f0 = 7Q (n.b. chip locations are not correct, it's just to indicate what I mean!) for multiple CPU boards, should the memory map / IO etc not be a tree from the CPU, that way you select which CPU socket you are plugged into, and see the memory maps for that CPU ... CPU support - if you can do Z80, S2650 should be a doddle if you want anything done / tested etc, then I'm willing to help - my icon drawing skills are probably not good, but I can program and test things ... (s2650 support for instance) I was going to ask if you had any spare USB chips so I could look at the long delayed project of connecting fluke pods to a PC, but then this would make fluke pods unecessary anyway! > I've put a few screenshots up of the user interface and would appreciate > some constructive criticism. The interface isn't set in stone as yet but I'd > prefer not to make drastic functionality changes, but I am already > considering some layout changes and some small functional improvements. If you ever want to (un)subscribe yourself with TTL, you can send mail to: <Majordomo(a)flippers.com> with the following command in the body of your email message: (un)subscribe techtoolslist or from another email account, besides xxx(a)yyy.com: (un)subscribe techtoolslist xxx(a)yyy.com

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Data i/o 29b memory upgrade????
by Bruno St-Laurent 24 Apr '04

24 Apr '04

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RE: Power system in France?
by James Bright 16 Apr '04

16 Apr '04

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Power system in France?
by James Bright 16 Apr '04

16 Apr '04

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Fluke 9100A -003 flying lead connector part#
by James Bright 15 Apr '04

15 Apr '04

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PROMLink with Data I/O 29B
by James Bright 06 Apr '04

06 Apr '04

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RE: Bugtrap Help
by Chris Toseland 06 Apr '04

06 Apr '04

>First up is the chip under test actually faulty? Sorry should have clarified that, yes the chip was faulty changing it bought the Space Invaders back to life. cheers Chris If you ever want to (un)subscribe yourself with TTL, you can send mail to: <Majordomo(a)flippers.com> with the following command in the body of your email message: (un)subscribe techtoolslist or from another email account, besides xxx(a)yyy.com: (un)subscribe techtoolslist xxx(a)yyy.com

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Bugtrap Help
by Chris Toseland 06 Apr '04

06 Apr '04

Hi All, I've aquired a Bugtrap 2074A all boxed with manuals condition unknown and was trying to do a comparison against my HP comparator to ascertain it's condition. My problem is this: The HP identified a faulty o/p on a 74ls20 chip so I dropped the bugtrap on and it says it's fine, or rather I should say no leds came on after I pressed the reset button (some where on before). I'm using the same 'known good' comparison chip and I've buzzed the ribbon cables out and there are no breaks. And I did have the power clips connected :o) I cracked the bugtrap open and there doesn't seem to be anything obviously blown though I note that someones replaced one of the power supply protection diodes in it at some point. So I suppose my quesion is, from the manual it appears that you only need to switch in the VCC and GND signals and not worry about setting I/P and O/P like the HP am I reading this correctly or just being dumb? Cheers Chris If you ever want to (un)subscribe yourself with TTL, you can send mail to: <Majordomo(a)flippers.com> with the following command in the body of your email message: (un)subscribe techtoolslist or from another email account, besides xxx(a)yyy.com: (un)subscribe techtoolslist xxx(a)yyy.com

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RE: RAM Tester UPDATE !!!!
by John Robertson 01 Apr '04

01 Apr '04

Keep an eye out for the Bug Trap Dynamic Ram tester then, it will check those from around 250 ns to 80ns. I use it regularly... John :-#)# >I'd certainly like to see 4116 and 4164 at needd Williams game speed being >able to be tested. > >Joe > >> -----Original Message----- >> From: owner-techtoolslist(a)flippers.com >> [mailto:owner-techtoolslist@flippers.com]On Behalf Of John Robertson >> Sent: Thursday, April 01, 2004 02:56 PM >> To: techtoolslist >> Subject: Re: RAM Tester UPDATE !!!! >> >> >> How is the project going? >> >> Speed of testing seems to be the biggest issue as >> many RAMs will work fine under slow testing but >> when run at their rated speed they then fail. >> >> I've been thinking about this RAM tester for the >> past number of years and was wondering which RAM >> people would like to be able to test. >> >> For example, my needs are to be able to test >> 2114, and 5101 ram as I have dynamic testers for >> the others and a couple of static ram testers for >> later RAM. >> >> Soooo I'm thinking more in line of a simple free >> standing circuit board that one can plug these >> into and with an adjustable calibrated speed >> control, much like the StarTek Dynamic Ram tester >> from the early 90's. The schematic for this is on >> the web site... >> >> One other project involves making a socket that I >> can drop into one of my old dynamic RAM testers >> (Bug Trap's late 70's unit) and see if I can fool >> it into testing the 4-bit static RAMs. >> >> John :-#)# >> >> At 9:35 AM -0300 2/12/04, pc2jamma wrote: >> >Gentleman ! >> > >> > >> >I'm facing a problem building the software that >> >makes the pattern test. I only have Windows XP >> >machines, and the way that this OS works on >> >Parallel port is pretty different than the >> >Windows 9x version. (Thanks to Microsoft !!!) >> > >> >On the Christmas holidays, my wife forced me to >> >paint my house... Ohhh yes... you see right... >> >And as I'm very busy on my job, I just have >> >holidays to work on my hobbies. >> > >> >Is Carnaval in Brazil next week, and I'll try to >> >make this software during theses days - Yes >> >man... I'll trade the Carnaval by build one test >> >Pattern Software for you guys ;) >> > >> >ANY HELP AND COMMENTS IS APPRECIATED !!! >> > >> >I'll keep you guys up to speed. >> > >> > >> >Take care, >> > >> >José Luiz Martins >> > >> > >> >If you ever want to (un)subscribe yourself with TTL, you can >> send mail to: >> ><Majordomo(a)flippers.com> >> >with the following command in the body of your email message: >> >(un)subscribe techtoolslist >> >or from another email account, besides xxx(a)yyy.com: >> >(un)subscribe techtoolslist xxx(a)yyy.com >> >> >> -- >> John's Jukes Ltd. 2343 Main St., Vancouver, BC, >> Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 >> (Pinballs, Jukes, VideoGames) www.flippers.com >> "Old pinballers never die, they just flip out" >> If you ever want to (un)subscribe yourself with TTL, you can send mail to: >> <Majordomo(a)flippers.com> >> with the following command in the body of your email message: >> (un)subscribe techtoolslist >> or from another email account, besides xxx(a)yyy.com: >> (un)subscribe techtoolslist xxx(a)yyy.com -- John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, VideoGames) www.flippers.com "Old pinballers never die, they just flip out" If you ever want to (un)subscribe yourself with TTL, you can send mail to: <Majordomo(a)flippers.com> with the following command in the body of your email message: (un)subscribe techtoolslist or from another email account, besides xxx(a)yyy.com: (un)subscribe techtoolslist xxx(a)yyy.com

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RAM Tester UPDATE !!!!
by pc2jamma 01 Apr '04

01 Apr '04

Gentleman ! I'm facing a problem building the software that makes the pattern test. I only have Windows XP machines, and the way that this OS works on Parallel port is pretty different than the Windows 9x version. (Thanks to Microsoft !!!) On the Christmas holidays, my wife forced me to paint my house... Ohhh yes... you see right... And as I'm very busy on my job, I just have holidays to work on my hobbies. Is Carnaval in Brazil next week, and I'll try to make this software during theses days - Yes man... I'll trade the Carnaval by build one test Pattern Software for you guys ;) ANY HELP AND COMMENTS IS APPRECIATED !!! I'll keep you guys up to speed. Take care, José Luiz Martins If you ever want to (un)subscribe yourself with TTL, you can send mail to: <Majordomo(a)flippers.com> with the following command in the body of your email message: (un)subscribe techtoolslist or from another email account, besides xxx(a)yyy.com: (un)subscribe techtoolslist xxx(a)yyy.com

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