Reply 1 of 8, by Badscrew
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looks like a Winbond clone, but by whom?
Reply 2 of 8, by Badscrew
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A real winbond for reference
Reply 3 of 8, by Grzyb
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Yes, looks like Winbond, a ubiquitous Hercules clone.
One of the jumpers selects the external character generator ROM, the other disables the LPT.
Nie tylko, jak widzicie, w tym trudność, że nie zdołacie wejść na moją górę, lecz i w tym, że ja do was cały zejść nie mogę, gdyż schodząc, gubię po drodze to, co miałem donieść.
Reply 4 of 8, by Badscrew
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I'll need to make a DE9 to DIN6 cable now...
Reply 5 of 8, by Badscrew
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The wires you see on the first photo were connected to an external switch to select between the character ROMs.
Good to know that the LPT could be disabled: I already have one on my multi-io card. Is it closed disabled or open disable, do you know?
Reply 6 of 8, by mkarcher
Badscrew wrote on 2021-09-18, 11:31:Good to know that the LPT could be disabled: I already have one on my multi-io card.
Remember that the parallel port on MDA/Hercules cards is at port 3BC, and thus won't conflict with a parallel port on a multi-I/O card at 378. You might still want to disable the video card parallel port to avoid the multi I/O port becoming LPT2.
Reply 7 of 8, by weedeewee
with two parallel ports you could do a stereo 8bit R2R DAC !
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Reply 8 of 8, by Grzyb
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Badscrew wrote on 2021-09-18, 11:31:Good to know that the LPT could be disabled: I already have one on my multi-io card. Is it closed disabled or open disable, do you know?
In the card I have, closed = disabled.
But indeed, it probably won't conflict with the I/O card.
Nie tylko, jak widzicie, w tym trudność, że nie zdołacie wejść na moją górę, lecz i w tym, że ja do was cały zejść nie mogę, gdyż schodząc, gubię po drodze to, co miałem donieść.