Re: [volt-nuts] solartron 7081 rom reading q
MK, I am not aware of a way to read the EPROM's without removing them. Dave Partridge has done a lot of work on these along with Mickle, both on the list. Dave Partridge's EPROM images are on Didier's site. I have read the EPROM's from two of these units, of two different vintages IIRC, and can send them to you if you need them. I used the images from one to upgrade the other to the latest version that I/we know of. I know that there is an undocumented command for the HP 3458A that allows you to read the memory but I don't know if the same sort of 'global' access exists on the 7081. Joe -Original Message- From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] On Behalf Of m k Sent: Saturday, January 12, 2013 2:40 PM To: volt-nuts@febo.com Subject: [volt-nuts] solartron 7081 rom reading q Hi, Finally able to talk to the meter through RS232. Is there any way to dump the rom contents using the RS232? or do the chips have to be put in a reader to get the values out? MK ___ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there. ___ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
Re: [volt-nuts] vSolartron7081 rom reading
Going from memory, no, you have to pull the roms and read them. At least, that's what a few of us in the group have done. You can access ram and nvram, though. -- Bill Ezell -- They said 'Windows or better' so I used Linux. ___ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
Re: [volt-nuts] vSolartron7081 rom reading
Actually, I believe that the MONITOR command will allow you look at storage anywhere within the address space of either of the processors, see pages 8.1 through 8.5 of the service manual. So it should be possible to READ the ROMs this way if both processors are working and communicating. However it would be pretty slow, and as all the ROMs are socketed, it's not a big deal to just remove them and read them in a programmer. Note that I haven't tried this. Regards, David Partridge -Original Message- From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] On Behalf Of Bill Ezell Sent: 13 January 2013 13:28 To: volt-nuts@febo.com Subject: Re: [volt-nuts] vSolartron7081 rom reading Going from memory, no, you have to pull the roms and read them. At least, that's what a few of us in the group have done. You can access ram and nvram, though. -- Bill Ezell -- They said 'Windows or better' so I used Linux. ___ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there. ___ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
Re: [volt-nuts] vSolartron7081 rom reading
Hi David, well it is currently working and close to calibrated as far as I can tell. But I want to get those calibration factors saved before it dies on me. Last calibrated 2008, and well down on drift by now. I get a diurnal 0.14 microvolt drift with a shorting plug that stays on when not in use. a drift of about 0.1 microvolts in about 3 weeks. Nothing else to confirm anything else as I have only just got it chatting out through the rs232. I will have to buy something to read them with. M K From: david.partri...@perdrix.co.uk To: volt-nuts@febo.com Date: Sun, 13 Jan 2013 16:36:52 + Subject: Re: [volt-nuts] vSolartron7081 rom reading Actually, I believe that the MONITOR command will allow you look at storage anywhere within the address space of either of the processors, see pages 8.1 through 8.5 of the service manual. So it should be possible to READ the ROMs this way if both processors are working and communicating. However it would be pretty slow, and as all the ROMs are socketed, it's not a big deal to just remove them and read them in a programmer. Note that I haven't tried this. Regards, David Partridge -Original Message- From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] On Behalf Of Bill Ezell Sent: 13 January 2013 13:28 To: volt-nuts@febo.com Subject: Re: [volt-nuts] vSolartron7081 rom reading Going from memory, no, you have to pull the roms and read them. At least, that's what a few of us in the group have done. You can access ram and nvram, though. -- Bill Ezell -- They said 'Windows or better' so I used Linux. ___ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there. ___ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there. ___ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
Re: [volt-nuts] vSolartron7081 rom reading
If all you want is to save the calibration factors, just issue CALIBRATE,DUMP command To refresh the EAROM calibration factors, issue CALIBRATE,REFRESH - barring component failure that should be good for another ten years or so. You can also display the NVM contents with the MONITOR command, but NOT re-write them. The only way that I am aware of that will write the caibration constants if they have been lost is to run a full calibration. Again all this in chapter 8. I don't know which ROM programmers that can read or write the ER3400 (just ignorance - there may be loads). Regards, David Partridge -Original Message- From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] On Behalf Of m k Sent: 13 January 2013 16:57 To: volt-nuts@febo.com Subject: Re: [volt-nuts] vSolartron7081 rom reading Hi David, well it is currently working and close to calibrated as far as I can tell. But I want to get those calibration factors saved before it dies on me. Last calibrated 2008, and well down on drift by now. I get a diurnal 0.14 microvolt drift with a shorting plug that stays on when not in use. a drift of about 0.1 microvolts in about 3 weeks. Nothing else to confirm anything else as I have only just got it chatting out through the rs232. I will have to buy something to read them with. M K ___ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
