dlr@daver.bungi.com (Dave Rand) (11/04/90)
[In the message entitled "some problems bringing the pc532 up." on Nov 4, 3:17, Eyal Lebedinsky writes:] > The machine seems to work. The PI program was downloaded and run with no > problems - but the disk wont respond. You probably have the disk connected to the "Disk/Tape" SCSI port. Surprise! It goes on the connector close to the expansion slots. We haven't put in a driver for the 6250 yet. > > Also, I dont recall seeing a monitor man, was there one? With the built-in help, I've never seen a need for a manual for the monitor... > > The baud command does not affect the rate: I did 'baud 19200' which should > have altered the consol speed but it did not. Try baud d'19200. You are in hex radix mode by default... > Last, J1 and J2 do not have pinput numbers in the layout (I assume 1-2-3 top > to bottom) and no indication which jumper for 1M/4M (I assumed 2-3 for 1M, > 1-2 for 4M). The Theory of Operation manual covers this. Karl's "How I got my PC532 going at 3am" posting convers most of the common stuff, as well. It is in the archives, if you want me to dig it up. -- Dave Rand {pyramid|mips|bct|vsi1}!daver!dlr Internet: dlr@daver.bungi.com
eyal@echo.canberra.edu.au (Eyal Lebedinsky) (11/04/90)
Hello, The machine seems to work. The PI program was downloaded and run with no problems - but the disk wont respond. The monitor is dated July 14, 1990. I get scsi select timeouts. I traced the signals and found that there is no activity on conn1. Then I found that the SELECT output of the ICU goes low on first disk i/o and stays low forever. This seems to select /scsi1 at the scsi pal, but the disk is on scsi0 (that's where it belong, correct?). The only time I see SELECT high is after machine reset until first read/write. The disk will just spin up, front led go green, a short burst of what sounds like head movement, then the thing goes silent. The front led is dark with a faint blink (at say 3Hz) and an on-board bright green led flickeres madly ( the disk is a 9380S). Also, I dont recall seeing a monitor man, was there one? The baud command does not affect the rate: I did 'baud 19200' which should have altered the consol speed but it did not. What should 'scsi_adr' be set to? I hope the default '0' will work the native disk (conn1). I tried 1 and 2 with no noticable change. Last, J1 and J2 do not have pinput numbers in the layout (I assume 1-2-3 top to bottom) and no indication which jumper for 1M/4M (I assumed 2-3 for 1M, 1-2 for 4M). BTW, the scsi pal definition says 'select = 0 will select scsi 0' but it does not seem to do this (unless 0 is high). -- Regards Eyal
george@wombat.bungi.COM (George Scolaro) (11/05/90)
[In the message entitled "some problems bringing the pc532 up." on Nov 4, 3:17, Eyal Lebedinsky writes:] > > Last, J1 and J2 do not have pinput numbers in the layout (I assume 1-2-3 top > to bottom) and no indication which jumper for 1M/4M (I assumed 2-3 for 1M, > 1-2 for 4M). You got it right. 2-3 for J1/J2 for 1M, 1-2 for 4M. An ohm-meter would also have allowed you to verify this. > BTW, the scsi pal definition says 'select = 0 will select scsi 0' but it does > not seem to do this (unless 0 is high). Yes, this is an error in the comment part of the pal - it caught Bruce out originally :-) and then I never got around to correcting it. Regarding the manual, I did give a few people a copy of the original draft for comment and hoped their feedback was enough. Unfortunately things that are obvious to some aren't to others. I will add these corrections into it, and at least the next set of boards that go out (we are waiting for the CPU/FPU/ICU chipsets to be shipped to us) will have a bit more info with them. Since Bruce wrote the monitor we never planned to do a manual for it. Maybe if someone out there feels it would be useful... (they could do it) best regards, -- George Scolaro george@wombat.bungi.com [37 20 51 N / 122 03 07 W]