Stag PP28 Programmer information - UK Vintage Radio Repair and Restoration Discussion Forum

Glos_Joe · 20th Apr 2015, 1:49 pm

Having picked up a Stag PP28 to enable me to back-up and program all the early EPROMs in my various items of test equipment I've found the interface to be trickier than I thought. Has anyone got a copy of the manual for this unit so that I can use it for its intended purpose? Looking at all the usual places on the web has resulted in a dearth of information.

Thanks!

woodchips · 20th Apr 2015, 6:35 pm

Can't be much different to their other prohgrammers, I have a PP39 and lots of info for that available.

JohnBHanson · 20th Apr 2015, 8:50 pm

From memory and a picture on the web

Use the switches to select the type of eeprom.

press fn and then load to read a eeprom into ram
press fn and then prog to program a blank eeprom

fn in and fn out are to read and write via the serial port. There is a
setup fn which sets up the baud rate etc using arrow keys to select.

I hope that helps (It is from memory and it must be about 30 years since
I have used one of these!).

Glos_Joe · 20th Apr 2015, 9:50 pm

Thanks for your comments, I'd also figured out some of the functionality by looking and trying but I'm having problems figuring out the switch settings for particular devices. Some combinations give me what I expect and others don't give me anything. The problem is trying to determine whether this is because the unit doesn't support the device or that particular combination is faulty. So far I've resisted the temptation to open up and start figuring out the circuit and what it should be doing but that will be the next step. As it is I only want the unit to work in a standalone mode and copy firmware in old bits of equipment as I'm somewhat paranoid about 30+ years old Eproms and their ability to retain charge after all that time.

Joe

20th Apr 2015, 1:49 pm	#1
Glos_Joe Retired Dormant Member Join Date: Feb 2013 Location: Cirencester, Gloucestershire, UK. Posts: 15	Stag PP28 Programmer information Having picked up a Stag PP28 to enable me to back-up and program all the early EPROMs in my various items of test equipment I've found the interface to be trickier than I thought. Has anyone got a copy of the manual for this unit so that I can use it for its intended purpose? Looking at all the usual places on the web has resulted in a dearth of information. Thanks!

20th Apr 2015, 6:35 pm	#2
woodchips Octode Join Date: May 2010 Location: Grantham, Lincolnshire, UK. Posts: 1,177	Re: Stag PP28 Programmer information Can't be much different to their other prohgrammers, I have a PP39 and lots of info for that available.

20th Apr 2015, 8:50 pm	#3
JohnBHanson Heptode Join Date: Aug 2009 Location: Worthing, Sussex, UK. Posts: 662	Re: Stag PP28 Programmer information From memory and a picture on the web Use the switches to select the type of eeprom. press fn and then load to read a eeprom into ram press fn and then prog to program a blank eeprom fn in and fn out are to read and write via the serial port. There is a setup fn which sets up the baud rate etc using arrow keys to select. I hope that helps (It is from memory and it must be about 30 years since I have used one of these!).

20th Apr 2015, 9:50 pm	#4
Glos_Joe Retired Dormant Member Join Date: Feb 2013 Location: Cirencester, Gloucestershire, UK. Posts: 15	Re: Stag PP28 Programmer information Thanks for your comments, I'd also figured out some of the functionality by looking and trying but I'm having problems figuring out the switch settings for particular devices. Some combinations give me what I expect and others don't give me anything. The problem is trying to determine whether this is because the unit doesn't support the device or that particular combination is faulty. So far I've resisted the temptation to open up and start figuring out the circuit and what it should be doing but that will be the next step. As it is I only want the unit to work in a standalone mode and copy firmware in old bits of equipment as I'm somewhat paranoid about 30+ years old Eproms and their ability to retain charge after all that time. Joe