> I _think_ I see a little initialization data pass down the
> line, to the mouse, when I first power up the device, but
> my o'scope isn't a memory type, so it might just be power
> up noise.
If you repeatedly pulse the MCLR pin you can repeat the reset
sequence often enough to view it on the scope. If it is power
up noise it may be confusing the mouse enough to stop it working.
Lee
.
Send instant messages to your online friends http://uk.messenger.yahoo.com
Hi,
Has anyone successfully built one of the PS/2 -> Indigo adapters off of
the following page?
http://rshockley.dyndns.org/indigo.htm
I'm having a devil of a time getting the mouse portion of things to
work.
When I hook my scope up to the clock and/or data PS/2 lines, I see no
data being received from the mouse.
I'm wondering if the mouse init code is not liking any of the PS/2 mice
I've got around. (I've tried 4 different ones.)
If you've got one working, what sort of mouse do you have?
I freely admit, I'm not a PIC expert, as this is my first project w/
them. :-> So any clue's anyone cares to beat me about the head and
shoulders w/ will be appreciated.
I do know the PIC's are "running", as the dozen test program I wrote
toggles the pins on PortA, and the keyboard side of things appears to be
working. I'm also pretty certain that my config word is right,
particularly external oscillator, and watchdog timer is off.
Anyone got one working? Or do I get to experience the joy's of reverse
engineering the code?
Thanks,
David
Hi,
a few days ago, I found a set of schematics for an 11/45 processor (KB11), I think on the site of someone on this list.
Like an idiot, I didn't bookmark them, and now I can't find them :-(
Can anyone help - they were in TIF format.
Thanks
Jim.
Please see our website the " Vintage Communication Pages" at WWW.G1JBG.CO.UK
Am I right in assuming that a VAX 4000/705A can only contain one CPU?
Thanks for the help,
Mark
--
Mark Wickens
Rhodium Consulting Ltd
Filetravel (8154) Ltd
Hi
Is anyone going to VCFe6, this spring, from northern
California? I'm looking for someone that might be able
to bring a box of paper tapes back for me from a fellow
in Germany.
Dwight
>From: "O. Sharp" <ohh at drizzle.com>
---snip---
>>
>Thanks for the excellent suggestions regarding likely mechanical causes
>for the chatter on Local. I'll be walking through the machine with them
>tomorrow, and hopefully they'll solve the current problem. Then I can look
>to see if there are more exotic problems. :)
>
Hi
You can try holding the armature of the selector coil with
a small screw driver. This will tell you if it is a mechanical
or electrical problem. If held, and you start the power,
all should lock-up. If it doesn't, it is a mechanical
issue. If it does, you have a break in the electrical
circuit someplace.
Be careful not to damage things near the coil. An
orange stick would be safer than a regular screw driver
but I've always just used a small screw driver.
You can see the selector clutch on the left side of the machine.
This is the clutch that starts everything. If you are
uncomfortable with powering on with your screw driver in there,
you can just spin things manually. Just turn the fan on
the motor. As each clutch releases, squeeze it to completely
release it or it will drag. When the motor is running there
is enough inertia to completely release it but when running
by hand, it needs to be done by the additional squeeze.
Dwight
I've weeded out a bunch of accounts that were slowing the list down
(virtually all inactive members who's "no mail flag" being cleared wreaked
havoc with non-delivery). Seems to be noticeably faster and such.
So... once again I'll ask... is anyone having any problems posting to or
receiving from the list? If so, please contact me immediately off-list.
Soon as no one responds to one of these RFP's, I'll move on to the FAQ :)
By the way... no one has mentioned if they tried the search feature on the
archives. Work ok?
Jay
> For the clock of course ... the .0001 hz hourglass has to flip
> correctly.
> >- John
Might be better if we refer to the clock speed in kCpy [Kilo-Cycles per Hr] = (approx) 3.15576 kCpy!
>From: "vrs" <vrs at msn.com>
--
>
>Cars where the windows can be rolled down are getting harder to find.
>
>My vans (both of them) have those stupid power windows that won't operate
>unless the car is running. Oh, and the back windows don't open at all
>(well, OK, they open a couple of inches for ventilation).
>
Hi
How many times do you think a person
drives there car into the water and then
remembers to turn the ignition off?
Dwight
All:
I picked-up a copy of the 9/76 BYTE magazine on eBay the other day
and as I was thumbing through it last night, I noticed an ad for the Texas
Instruments Microprocessor Learning Kit.
The LK is composed of four modules in clear plastic cases. The first
one is the Microprogrammer Learning Module and contains an array of data and
address switches. The second one is the Controller. The third is the memory
and the fourth is I/O. They connect through what appears to be 40-conductor
ribbon cable. From the ad, the coursework appears to center around
microprogramming and developing your own CPU instruction set as a learning
tool.
Has anyone used one of these or has one in their collection?
Rich
