For Sale RAM Chip Tester for Commodore, Atari, Apple & More

[s800]

Declaring interest.

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Great project. Declaring Interest (to US)

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(Interest marked as expired by tops4u)

 

[guibrush]

Declaring interest.

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hi, I'm interested if this is still available? I'm in Switzerland too.

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(Marked as sold/completed by tops4u)

 

[guibrush]

pm replied and money sent. Thanks!

 

[warr8or29]

Declaring interest.

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(Marked as sold/completed by tops4u)

 

[tops4u]

As a general Info, I have ordered some 1M x 4 static column RAM (from a unreliable source though). If they work I'll try them out an maybe also adapt the SW to check specifically in static column mode. However static column RAM should also support Fast Page Mode and *should* be testable with the current Firmware just not specifically the static column mode.

 

[snief]

Declaring interest.

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(Marked as sold/completed by tops4u)

 

[warr8or29]

payment sent

 

[guibrush]

tester received, work well. Thanks!

 

[Bandit0r]

Declaring interest.

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in one.

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(Marked as sold/completed by tops4u)

 

[Bandit0r]

PM's exchanged.
Payment sent as agreed.

 

[Bandit0r]

Tester received today. Nice little gadget
Had to pay small amount of custom duties....but that's ok, was expected.
Tester works as it should.
Thanks.

Positive feedback on the way.

 

[nickibert]

Declaring interest.

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(Marked as sold/completed by tops4u)

 

[warr8or29]

Tester received a few days ago. i haven't tested anything yet but it should be quite useful
positive feedback sent

 

[nickibert]

PMs exchanged - payment done.

 

[nickibert]

Tester arrived - thank you!

 

[Aormelodicrock]

Declaring interest.

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(Marked as sold/completed by tops4u)

 

[Aormelodicrock]

PMs exchanged - payment done.

 

[tops4u]

Version 2.2 of the Software is in the Pipeline (see Github).

It will improve testing by doing Random Pattern Checks as last step when testing RAM. This step increases certainty that address lines and decoders are working correctly and there is no crosstalk between columns and rows. Downturn: It will increase Test-Time.

Static Column Ram can finally be detected and tested. Currently the 514258 RAM (256k x 4) is implemented and tested but as the logic will be similar it can be easily extended for 514002 (1M x 4) RAM.

I have to extend the Random Pattern testing to all Pin sizes and adjust Referesh Time Check accordingly. The currently available 2.2 Beta SW on Github is runnable though it lacks the Random Checks for 16 Pin & 18 Pin Versions.

Once ready I'll include some upgrade Instructions for those who want to install the new Firmware.

 

[Aormelodicrock]

Tester arrived - thank you!

 

[Zekeman]

Declaring interest.

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(Interest marked as expired by tops4u)