Author
| A gift
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flyguille
msx master
Posts: 1225 |  Posted: November 01 2005, 22:25 |
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Jazzy
msx addict
Posts: 411 | Posted: November 01 2005, 22:28 |
WTF?
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flyguille
msx master
Posts: 1225 | Posted: November 01 2005, 22:30 |
what you see is what it is!
the original's schemes from the technical service of the factory.
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mars2000you
msx master
Posts: 1723 | Posted: November 01 2005, 22:38 |
YM3814 ???? Is this a FM chip ? or a compatible OPL3 or OPL4 chip ?
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flyguille
msx master
Posts: 1225 | Posted: November 01 2005, 22:39 |
MSX2 engine
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mars2000you
msx master
Posts: 1723 | Posted: November 01 2005, 22:40 |
Ah !  |
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flyguille
msx master
Posts: 1225 | Posted: November 01 2005, 22:41 |
aka S1985
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mars2000you
msx master
Posts: 1723 | Posted: November 01 2005, 22:45 |
I didn't know its other name !
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HansO
msx addict
Posts: 375 | Posted: November 02 2005, 22:31 |
Quote:
| what you see is what it is!
the original's schemes from the technical service of the factory.
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Ok if I make a pdf of it and put it on the internet? |
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Unicorn
msx lover
Posts: 72 | Posted: November 02 2005, 22:35 |
These pictures make me all warm and fuzzy-wuzzy... Hmmmm!
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flyguille
msx master
Posts: 1225 | Posted: November 02 2005, 22:56 |
with that purpose i upload it... share the docs! save the world!
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flyguille
msx master
Posts: 1225 | Posted: November 02 2005, 22:58 |
I only has one technical question
what are the connections STB1/STB2 at the joystick connectors?
those are outputs?
i mean I knows as technician STB == strobe
but, IIRC I not remember that you can send data by means of joystick ports... and the joystick are input only devices.... is it standard?... how to use those lines?
those lines are connected directly to the S1985 chip.
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Edwin
msx professional
Posts: 626 | Posted: November 02 2005, 23:04 |
The F1 spirit 3D Special link cable used the joystick port IIRC. So it must have been able to send.
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pitpan
msx master
Posts: 1390 | Posted: November 03 2005, 00:05 |
Indeed they can send information. For example, when connecting a paddle (is this its name?) it is necessary to send an initialization pulse to the flip-flop and then check how does it take to change. Indeed, it does not involve much more than a potenciometer (right name?), a flip-flop and some other logic.
But yes, you can revert the joystick to send information rather than to receive it. Check the F1 Special cable or its further developmente, JoyNet.
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flyguille
msx master
Posts: 1225 | Posted: November 03 2005, 01:07 |
how to programming it in direct I/O?
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