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Author Topic: Level 7 interrupt button on A3000  (Read 1624 times)

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Offline bm07Topic starter

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Level 7 interrupt button on A3000
« on: March 13, 2010, 04:30:56 PM »
Has anyone added a Level 7 interrupt button to their A3000?  If so where did you connect to IPL0-2?
 
Thanks.
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Offline Tenacious

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Re: Level 7 interrupt button on A3000
« Reply #1 on: March 13, 2010, 05:35:23 PM »
Would you care to expand your question?  What is it?  What's its purpose? How does it improve the machine?  Will it perfectly brown toast?
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Offline bm07Topic starter

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Re: Level 7 interrupt button on A3000
« Reply #2 on: March 13, 2010, 06:16:24 PM »
It is primarily useful for programmers; the button will let another piece of software like Hrtmon take control of the machine.  Won't brown toast but could brown your CPU if not wired correctly. :)  On my 2000 I have one connected to the 3 pins of the CPU socket.  I'll probably try something similar on the 68030, but thought I would ask if anyone else has done this...
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Offline Tenacious

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Re: Level 7 interrupt button on A3000
« Reply #3 on: March 13, 2010, 07:34:08 PM »
Oh.  Cool.  IIRC, the 68030 is surface mounted.  Were you originally asking for schematic info?
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Offline Zac67

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Re: Level 7 interrupt button on A3000
« Reply #4 on: March 13, 2010, 08:55:19 PM »
CPU slot: pins 120,124,128
Paula: pins 13-15
Zorro: pin 40
U701: pin 8

Zorro and U701 have unencoded _INT7 - probably the easiest way
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Offline mongo

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Re: Level 7 interrupt button on A3000
« Reply #5 on: March 13, 2010, 08:56:17 PM »
Quote from: bm07;547448
Has anyone added a Level 7 interrupt button to their A3000?  If so where did you connect to IPL0-2?
 
Thanks.


Paula would probably be a good place. Pins 13,14, and 15 are IPL0-2.
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