Actual value of some bits on the interrupt status register on the ES1371 \ VOGONS

Actual value of some bits on the interrupt status register on the ES1371

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First post, by Battler

Posted on 2023-07-20, 22:29

Battler Offline

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I am wodnering what the actual value of bits 30 to 9 of the interrupt status register on the ES1371 is. The datasheet says they should be all 1 but if Windows XP sees that bit 13 is set, it tries to execute a DPC that has not been set (because it's only set on ES1371 revision >= 4) and therefore has a NULL pointer, therefore resulting in a BSoD. This makes me curious as for what the actual hardware returns in those bits.

Reply 1 of 3, by Battler

Posted on 2023-08-11, 00:50

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Thanks to a friend of mine managing to obtain a real ES1371 and another friend of mine then probing it, I can now answer my own question - the datasheet is in fact correct. Said Windows XP driver was even observed to also BSoD on the real card, which means it's not actually an ES1371 driver.

Reply 2 of 3, by RichardG867

Posted on 2023-09-19, 16:36

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I was working alongside OP on diagnosing this issue and have since completed an investigation into the matter: Ensoniq AudioPCI ES1371 and the driver bug nobody found

Reply 3 of 3, by chinny22

Posted on 2023-09-20, 04:52

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Very interesting.
I've only got ES1373 based cards and while no doubting they are a budget card compared to a Live! which are just as cheap now. They aren't as terrible as everyone makes out and often overlooked.

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