Could be a bad PIA (UB12) or the 4-to-10 decoder (UC11). Was the "PET" part
working fine before connecting the superpet boards?
Steve
From: Jerome Coggins <jeromecoggins@xxxxxxxxxxx>
To: "torontocbm@xxxxxxxxxxxxx" <torontocbm@xxxxxxxxxxxxx>
Sent: Saturday, April 4, 2015 11:52 PM
Subject: [torontocbm] Superpet Upgrade working, but with issues
Thanks to Steve Gray i have the 16 hz clock connected. i am getting the beep,
but nothing on the screen in 6502 mode. In 6809 mode, i am getting the main
menu, but the keyboard is not behaving properly. When I press b to start
basic, i see the b but nothing happens. the RETURN key and shift do strange
things. i am looking into the 4K character ROM mentioned earlier. Any other
ideas that might be helpful to me?Thanks for all the help,Jerry
Sent from my iPad
On Apr 4, 2015, at 10:32 PM, Steve Gray <sjgray@xxxxxxxxxx> wrote:
I don't have my SuperPET handy to check, but according to the schematics you
need to connect the 6502 chip (UB14) pin 35 to UD3 pin 1. Early boards need a
wire but it appears that the last universal dynamic pet motherboards have a
jumper (which seems to be unlabelled, so I don't know where it's located).
Steve
From: Jerome Coggins <jeromecoggins@xxxxxxxxxxx>
To: "torontocbm@xxxxxxxxxxxxx" <torontocbm@xxxxxxxxxxxxx>
Sent: Saturday, April 4, 2015 5:30 PM
Subject: [torontocbm] Re: Upgrade to Superpet
hi. i have made the connection to the 16mhz clock, but still no luck. Is
anyone willing to check and provide the chip and pin for this connection?
There are multiple phases, so maybe the standard clock output is not
right.regards,jerry
Sent from my iPad
On Apr 1, 2015, at 5:21 PM, Jerome Coggins <jeromecoggins@xxxxxxxxxxx> wrote:
Thanks. I don't know about the connection under the 8032 board. I will
check. It out. Jerry
Sent from my iPad
On Apr 1, 2015, at 2:42 PM, Steve Gray <sjgray@xxxxxxxxxx> wrote:
Ok, do you have all the parts?- two boards (cpu and memory)- two ribbon cables-
power extender cable- One or two switches: 6502/prog/6809 and maybe U11/U2
something (forget exactly)
Connections:- short ribbon cable connects the two boards together- longer
ribbon cable connects to 8032 board's CPU socket and SuperPET cpu board
- power extender goes from SuperPET CPU board to 8032 board.CPU transplanted
onto SuperPET board. -original power cable plugs into SuperPET CPU board-
switch(es) go to SuperPET CPU board
Check:- Is there a small board in the slot on the memory board?- Does your 8032
board have the wire on the bottom running from the 16MHz signal to the cpu
socket?- Does your 8032 board have a 4K character generator rom?
Steve
From: Jerome Coggins <jeromecoggins@xxxxxxxxxxx>
To: torontocbm <torontocbm@xxxxxxxxxxxxx>
Sent: Wednesday, April 1, 2015 2:20 PM
Subject: [torontocbm] Upgrade to Superpet
Hi. I have a PET 8032 and have a two-board Superpet upgrade kit. Can anyone
provide me with instructions and/or insights on doing this. At first
connection i have gotten nothing to work after installation.
Regards.
Jerry
Sent from my iPad
