EEPROM/EPROM programmer. - UK Vintage Radio Repair and Restoration Discussion Forum

David · 19th Mar 2010, 1:06 pm

Hi does anyone have any experience of copying the eeprom and eprom used in the Philips fm1100 series radios.I used to work for Philips and have the software which enables me to edit a configuration but I do not have a suitable old 386 or 486 computer with the dedicated interface card to program these radios apart from developing the configuration and taking the configuration to my ex workplace on a floppy and using the machine in the workshop.I was thinking of perhaps purchasing a programer which would copy the data in the eeprom and eprom into files so that I can program new proms for club members,but I have no experience of such programmers so I ask for advice before I spend money only to find I have bought an unsuitable device.
Thanks
David.

Jack Spark · 19th Mar 2010, 6:58 pm

Hi David

What are the PROMs?

Regards

Jack

David · 19th Mar 2010, 7:39 pm

Hello Jack thanks for your reply the eeprom is an 8 pin dip 24c16 and the eprom is
27c512 the eprom in some radios I have are erasable by UV light exposure but others do not have the window on them.Basically if I can program 1 set of proms and copy them at home it is more convenient for me and also I am not getting under the feet of my ex collegues.

McMurdo · 19th Mar 2010, 8:01 pm

Both devices you mention are standard memory devices and should pose no problems to even the most basic pc-driven programmer. The 27c512 without window is probably going to be an OTP PROM which means you can usually read the code but then you cant alter that chip, you have to burn the code to another new one. The 24C16 is a standard eerom as used in TV tuning memories etc.
Providing you can take the IC in question off the pcb (overheating them can corrupt them) then you just need to fit it in a suitable adapter on the programmer, read it, edit it on-screen if necessary (it will be a hex file) then burn it to a new one.

Most programmers these days are connected to the PC by USB, a few use the printer LPT port, these are usually older machines that will not work on XP, they are DOS/W95/98 only.

Jack Spark · 19th Mar 2010, 11:28 pm

As they seem to be pretty standard devices, have a look at Willem programmers. The one you'll need has a mains supply - the other USB and LPT powered ones don't program EPROMs correctly.

http://www.mcumall.com/comersus/stor...idProduct=3199

This one may do it, drop them a mail and ask.

Good luck and regards

Jack

Skywave · 20th Mar 2010, 12:08 am

Quote:

Originally Posted by McMurdo

The 27c512 without window is probably going to be an OTP PROM

I'm showing my ignorance here!

Could that 'PROM' not be an EEPROM?

Al. / Skywave.

Kat Manton · 20th Mar 2010, 5:38 am

Hi,

Quote:

Originally Posted by Skywave

Could that 'PROM' not be an EEPROM?

Not if it's a 27C512; a UV-erasable EPROM usually encountered in a ceramic package with a window.

A cheaper version of the same device was available in a plastic package with no window, hence no means by which it can be erased, making it a PROM. (The idea was to use the ceramic ones in R&D until you got the code right, then ship product with the cheap ones in.)

Regards, Kat

Skywave · 20th Mar 2010, 11:00 am

Thanks Kat.

Al.

McMurdo · 20th Mar 2010, 2:58 pm

Quote:

the other USB and LPT powered ones don't program EPROMs correctly.

True, as I found out to my annoyance once! Despite the literature saying they will handle eproms, it seems that the USB cant supply enough power to burn them properly though EEROMS and micros are fine.

Just one to watch if you're in the market for a programmer!

David · 20th Mar 2010, 5:56 pm

Thanks chaps I have noted your replies and comments.I hope to proceed and increase my knowledge of chip programming.
David

Red to black · 28th Apr 2010, 12:40 pm

Hi, I built My own programmer using ponyprog and the quick and dirty easy I2C programmer on this site http://www.lancos.com/
But I had to use an old 486 B&W laptop with WIN 95 on it, as it used the LPT port.
On the link above there are several different interface designs from which you may find something useful.
I hope this will help you and others.
Cheers,
Baz

Red to black · 28th Apr 2010, 1:30 pm

Sorry to reply to my own post

, but I wanted to add some additional info. for other people.
The "quick and dirty" eeprom programmer I built in my previous post, uses an external Psu regulated by a 7805 device, on mine I added 3X 1N400X diodes in series on the output side of the Reg. and fitted a shorting on/off switch across all 3 diodes to enable them (altogether) to be switched in and out of circuit, this allowed me to be able to programme/copy the 3.3V versions of the 24CXX series of eeproms aswell as the 5V versions.
Mine was built on a piece of Veroboard using bits out of my scrap box, the components/layout are non-critical and it cost nothing

.
I hope this is useful info.for anybody else considering going this route.
Cheers,
Baz

19th Mar 2010, 1:06 pm	#1
David Retired Dormant Member Join Date: Oct 2006 Location: Carrickfergus Posts: 5	EEPROM/EPROM programmer. Hi does anyone have any experience of copying the eeprom and eprom used in the Philips fm1100 series radios.I used to work for Philips and have the software which enables me to edit a configuration but I do not have a suitable old 386 or 486 computer with the dedicated interface card to program these radios apart from developing the configuration and taking the configuration to my ex workplace on a floppy and using the machine in the workshop.I was thinking of perhaps purchasing a programer which would copy the data in the eeprom and eprom into files so that I can program new proms for club members,but I have no experience of such programmers so I ask for advice before I spend money only to find I have bought an unsuitable device. Thanks David.

19th Mar 2010, 6:58 pm	#2
Jack Spark Retired Dormant Member Join Date: Aug 2008 Location: London, UK. Posts: 47	Re: EEPROM/EPROM programmer. Hi David What are the PROMs? Regards Jack

19th Mar 2010, 7:39 pm	#3
David Retired Dormant Member Join Date: Oct 2006 Location: Carrickfergus Posts: 5	Re: EEPROM/EPROM programmer. Hello Jack thanks for your reply the eeprom is an 8 pin dip 24c16 and the eprom is 27c512 the eprom in some radios I have are erasable by UV light exposure but others do not have the window on them.Basically if I can program 1 set of proms and copy them at home it is more convenient for me and also I am not getting under the feet of my ex collegues.

19th Mar 2010, 8:01 pm	#4
McMurdo Dekatron Join Date: Jun 2009 Location: Staffordshire Moorlands, UK. Posts: 5,271	Re: EEPROM/EPROM programmer. Both devices you mention are standard memory devices and should pose no problems to even the most basic pc-driven programmer. The 27c512 without window is probably going to be an OTP PROM which means you can usually read the code but then you cant alter that chip, you have to burn the code to another new one. The 24C16 is a standard eerom as used in TV tuning memories etc. Providing you can take the IC in question off the pcb (overheating them can corrupt them) then you just need to fit it in a suitable adapter on the programmer, read it, edit it on-screen if necessary (it will be a hex file) then burn it to a new one. Most programmers these days are connected to the PC by USB, a few use the printer LPT port, these are usually older machines that will not work on XP, they are DOS/W95/98 only. __________________ Kevin

19th Mar 2010, 11:28 pm	#5
Jack Spark Retired Dormant Member Join Date: Aug 2008 Location: London, UK. Posts: 47	Re: EEPROM/EPROM programmer. As they seem to be pretty standard devices, have a look at Willem programmers. The one you'll need has a mains supply - the other USB and LPT powered ones don't program EPROMs correctly. http://www.mcumall.com/comersus/stor...idProduct=3199 This one may do it, drop them a mail and ask. Good luck and regards Jack

20th Mar 2010, 11:00 am	#8
Skywave Rest in Peace Join Date: Jun 2006 Location: Chard, South Somerset, UK. Posts: 7,457	Re: EEPROM/EPROM programmer. Thanks Kat. Al.

20th Mar 2010, 5:56 pm	#10
David Retired Dormant Member Join Date: Oct 2006 Location: Carrickfergus Posts: 5	Re: EEPROM/EPROM programmer. Thanks chaps I have noted your replies and comments.I hope to proceed and increase my knowledge of chip programming. David

28th Apr 2010, 12:40 pm	#11
Red to black Nonode Join Date: Mar 2010 Location: Sunderland, Tyne and Wear, UK. Posts: 2,475	Re: EEPROM/EPROM programmer. Hi, I built My own programmer using ponyprog and the quick and dirty easy I2C programmer on this site http://www.lancos.com/ But I had to use an old 486 B&W laptop with WIN 95 on it, as it used the LPT port. On the link above there are several different interface designs from which you may find something useful. I hope this will help you and others. Cheers, Baz __________________ I don't suffer from Insanity. I enjoy every minute of it.

28th Apr 2010, 1:30 pm	#12
Red to black Nonode Join Date: Mar 2010 Location: Sunderland, Tyne and Wear, UK. Posts: 2,475	Re: EEPROM/EPROM programmer. Sorry to reply to my own post, but I wanted to add some additional info. for other people. The "quick and dirty" eeprom programmer I built in my previous post, uses an external Psu regulated by a 7805 device, on mine I added 3X 1N400X diodes in series on the output side of the Reg. and fitted a shorting on/off switch across all 3 diodes to enable them (altogether) to be switched in and out of circuit, this allowed me to be able to programme/copy the 3.3V versions of the 24CXX series of eeproms aswell as the 5V versions. Mine was built on a piece of Veroboard using bits out of my scrap box, the components/layout are non-critical and it cost nothing . I hope this is useful info.for anybody else considering going this route. Cheers, Baz __________________ I don't suffer from Insanity. I enjoy every minute of it.