DMA US H E L P !!!!!
ZXNet echo conference «real.speccy»
From Vitaly Kovalev → To All 22 November 1999
Vitaly Kovalev writes in a message...
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>Hi All !!!
>We collected DMA the other day, and as they wrote in ADVENTURER 9 magazine
>the samples are cut off. There is a suspicion that the formation of the
>INT signal is happening somehow wrong. those. If you plug into the INT gap the circuit
>forming INT DMA, then the machine hangs dead. Some kind of crap rushes onto the bus, and if you use the native INT, the samples are cut off.
>And for some reason the 36th leg (EOP) of the VT37 hangs in the air. This signal should come from it to the INT formation circuit. but he doesn’t come.
>if instead of him 1 leg of D19 is pulled up to +5V, then the muse begins to play.
>and it’s quiet and quiet.
>And the developers for some reason clamped down on the INT debugging procedure, like wait in
>the next issue. :-(
>I don’t think that the whole mess was that the DMA is connected to Scorp with 1 meter
of brains. 512 kilos in it are built according to the Pentagon and up to 1 meter according to the Profi.
>People, help whoever you can, otherwise it’s such a bummer.
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>With respect Vitaly.
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