PPT - Parallel Port Tester \ VOGONS

PPT - Parallel Port Tester

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First post, by MERCURY127

Posted on 2017-03-31, 13:42

MERCURY127 Offline

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Joined: 2017-02-19, 16:38
Location: Russia

Hello to all!

Now i want present you my fresh program:

PPT - Parallel Port Tester, with ability testing EXTERNAL inputs via data bus in BPP/EPP modes.

For test you need make special 🤣 LIHO loopback.
Here is LIHO (Low [data nibble] In, High Out) passive test loopback scheme:

2 <- 1
3 <- 14
4 <- 16
5 <- 17
6 -> 13
7 -> 12
8 -> 10
9 -> 11
15 - NC

For run PPT (DOS/3x/9x only) enter in cmdline:

ppt [278]

where 278 - hex number of base port for test, if need. Without number program will use port 0x378h.

Tested on: old ISA multicard, p3 integrated port, core i7 integrated port. Not work in ECP mode!

Wait your replies 😀

Reply 1 of 5, by collector

Posted on 2017-03-31, 14:47

collector Offline

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This should be in Marvin Marvin, the Paranoid Android This forum is for games on *modern* systems.

The Sierra Help Pages -- New Sierra Game Installers -- Sierra Game Patches -- New Non-Sierra Game Installers

Reply 2 of 5, by MERCURY127

Posted on 2017-03-31, 16:15

MERCURY127 Offline

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Posts: 126
Joined: 2017-02-19, 16:38
Location: Russia

Ok, sorry...
How i can move or delete this topic?

Reply 3 of 5, by Stiletto

Posted on 2017-03-31, 17:37

Stiletto Offline

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MERCURY127 wrote:
Ok, sorry...
How i can move or delete this topic?

Moderators/Admins move or delete it for you. (Unless it's a topic with only one post in it - the topic starter, yours - then you can delete a topic)

Moved to Marvin -> General Old Hardware. (Could just as easily go in Release Announcements, but you'll probably get more people testing it here.)

"I see a little silhouette-o of a man, Scaramouche, Scaramouche, will you
do the Fandango!" - Queen

Stiletto

Reply 4 of 5, by Jepael

Posted on 2017-03-31, 18:55

Jepael Offline

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MERCURY127 wrote:
Here is LIHO (Low [data nibble] In, High Out) passive test loopback scheme: […]
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Here is LIHO (Low [data nibble] In, High Out) passive test loopback scheme:

2 <- 1
3 <- 14
4 <- 16
5 <- 17

OK, so what if data pins (2,3,4,5) are high outputs, and control pins (1,14,16,17) are low outputs?
Can you safely say every parallel port in the world does not go up in smoke and works afterwards?

Personally, I know enough about my parallel ports I would not connect those together.

Reply 5 of 5, by MERCURY127

Posted on 2017-03-31, 19:07

MERCURY127 Offline

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Posts: 126
Joined: 2017-02-19, 16:38
Location: Russia

All ports, what i try - remain work. No smoke, even after direct wiring. But sure, better use resistors 10 kohm for this task...

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