[comp.music] MPU401 & IBM Interrupts

waynes@cs.tamu.edu (Wayne Simmons) (07/02/90)

In the July issue of Electronic Musician, Scott Nichol gives a very
good explanation of why the hard disk tends to hang when using the
MPU-401. He describes a method of using getvect() and setvect() to
alleviate the problem. However, I am still clueless as to how to
actually implement his solution. If anyone knows, PLEASE enlighten
me. It is a very frustrating problem.

Thanks,
Wayne Simmons

gene@dept.csci.unt.edu (Gene De Lisa) (07/02/90)

In article <6285@helios.TAMU.EDU> waynes@cs.tamu.edu (Wayne Simmons) writes:
>
>In the July issue of Electronic Musician, Scott Nichol gives a very
>good explanation of why the hard disk tends to hang when using the
>MPU-401. He describes a method of using getvect() and setvect() to
>alleviate the problem. However, I am still clueless as to how to
>actually implement his solution. If anyone knows, PLEASE enlighten
>me. It is a very frustrating problem.

The easiest thing for you to do is to simply buy a toolkit that
contains working ISRs. The Music QUest toolikt comes with a refererence
for the MPU plus 3 disks of code which includes a working ISR.
Then all you would have to do is link it in.
-- 
Gene De Lisa

"Ducking for apples--change one letter and it's the story of my life"
Dorothy Parker(1893-1967) (spoken at a halloween party)

HARNDEN@AUVM.BITNET (07/10/90)

did you ever try rewiring the IRQ on the MPU board? all you have to do is
get the MPU away from the line that the disk shadows (2/9, i think).
works for me.