Very Computer

Hi!
I've got some probs with my PAS16 and 1542B:
If I try to play a MOD-File, following msg is displayed:  
  -> Sound: DMA timed out - IRQ/DRQ config error?

My Configuration:

PAS16: IRQ 10  / DRQ 3 / BASE 0x388
1542B: IRQ 11  / DMA 5 / BASE 0x330    

System: 486dx50 / 8MB Ram + 16MB Swap /  Linux 1.1.49

Hopefully somebody could help.

Thanks in advance.
--
-cj

- If you hear some _looping_ sound before the timeout, you have an IRQ
  conflict.

- If you hear no sound at all, you have a DMA conflict.

- If everything works OK for some time but sound stops after some
  SCSI activity, you have just bad luck. PAS16 and AHA1542 are known to
  be incompatible. There is just a minor possibility that adjusting the
  bus on/off times of AHA solves this problem. Does anybody have experience
  on this?

Hannu
--
-----------------------------
Hannu Savolainen

"Hackers don't use factory prebooted DOS."

|>
|> >Hi!
|> >I've got some probs with my PAS16 and 1542B:
|> >If I try to play a MOD-File, following msg is displayed:  
|> >  -> Sound: DMA timed out - IRQ/DRQ config error?
|>
|> - If you hear some _looping_ sound before the timeout, you have an IRQ
|>   conflict.
|>
|> - If you hear no sound at all, you have a DMA conflict.
|>
|> - If everything works OK for some time but sound stops after some
|>   SCSI activity, you have just bad luck. PAS16 and AHA1542 are known to
|>   be incompatible. There is just a minor possibility that adjusting the
|>   bus on/off times of AHA solves this problem. Does anybody have experience
|>   on this?
|>
|> Hannu
|> --
|> -----------------------------
|> Hannu Savolainen

|> "Hackers don't use factory prebooted DOS."

Hi!

I have a PAS16 and 1542CF. I tried some bus on/off times (in the aha1542.c
driver) and found out, that the PAS worked great when the 1542 was near
300KB/sec transfer speed. (Don't ask me for the parameters, I only tried a little
but don't know them any more.)

You can use the PAS with lower sample rate (ca. 22KHz Stereo, 8Bit) in normal
work. But when you have much hard disk acces the sound stops again.

Until now I found no solution to this problem.

Sascha Klein

: >Hi!
: >I've got some probs with my PAS16 and 1542B:
: >If I try to play a MOD-File, following msg is displayed:  
: >  -> Sound: DMA timed out - IRQ/DRQ config error?

: - If you hear some _looping_ sound before the timeout, you have an IRQ
:   conflict.

: - If you hear no sound at all, you have a DMA conflict.

: - If everything works OK for some time but sound stops after some
:   SCSI activity, you have just bad luck. PAS16 and AHA1542 are known to
:   be incompatible. There is just a minor possibility that adjusting the
:   bus on/off times of AHA solves this problem. Does anybody have experience
:   on this?

: Hannu
: --
: -----------------------------
: Hannu Savolainen

: "Hackers don't use factory prebooted DOS."

 I have a PAS16 and 1542CF I have no problems. Sound works great for me
   486DX 33
   16 Meg RAm
   1.7 Gig SCSI on 1542CF
   NEC cdrom Ext on PAS16 untill I get a a cable
   NEC 5FGe with #9 level 12

  I use the same IRQ and DMA for the PAS16 under DOS and Linux does the card
work in DOS? The Dos PAS programs will find the best IRQ and DMA have you  
tried this program. This may help you find a place where the card may work.

 Robert Murray

: I've got some probs with my PAS16 and 1542B:
: If I try to play a MOD-File, following msg is displayed:  
:   -> Sound: DMA timed out - IRQ/DRQ config error?

: My Configuration:

: PAS16: IRQ 10  / DRQ 3 / BASE 0x388
: 1542B: IRQ 11  / DMA 5 / BASE 0x330  

: System: 486dx50 / 8MB Ram + 16MB Swap /  Linux 1.1.49

Christian:

I am having exactly the same problem with my Logitech SoundMan 16
(supposedly a PAS16 Clone), when ever there is moderate to heavy
activity on the SCSI Disks controlled by the AHA1542B!  There is a section
in the Sound-HOWTO talking about the problems with the PAS16/1542 Combo.
But so far even with some suggestions from the contributor of that
particular section in the HOWTO, my problems persist!  Adjusted the DMA
Bus On/Off times to 8/8, moved the AHA1542 to the alternate I/O Address
and disabled the MPU-401?  I do NOT get the parity errors that Stan talks
about and there are NO similar problems under DOS/Windows.  In terms of
having much control over the ISA Timing or understanding what the Symphony
Bus Chip is, I have little control.  There was some slight improvement
when I adjusted the DMA Bus On/Off Timings in drivers/scsi/aha1542.c
(Linux 1.0.9), but it is still far from being satisfactory!

--