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No the Floppy is not in the drive.? The EEPROM was written by me. I am using a Xgpro software and a?TL866II Plus Programmer. I do not see an option to write protect, and the manual is not clear on where this option may reside in the 50 results which hit on the term "Write" I just pulled the project I used to write to the EEPROM and there is no evidence this took place, but let me snoop around in here a bit more.? Weird?that one could write to the EEPROM through the Floppy, but not via the front panel.?? Rich?
On Monday, March 7, 2022, 08:51:32 PM EST, Lothar baier <lothar@...> wrote:
You don¡¯t have the floppy still in the drive , correct ? So usually if your write protection is enabled you will get a warning when you run a adjustment test so if you don¡¯t see a message then your switch more than likely is set correctly. It could be that the EEPROM for some reason is write protected , did you ever uploaded any files to the EEPROM using a programmer ?? the programmer I used to have had a option you could enable that would write protect the EEPROM you wrote to for some reason this was enabled by default so when I turned on options in my 8753ES I ran into the same issue , I put the device back in and unprotected it and it worked fine . If your EEPROM is in a socket and have another CPU board you could swap the EEPROM and try ? ? From: [email protected] <[email protected]>
On Behalf Of Rich Miller via groups.io
Sent: Monday, March 7, 2022 6:51 PM To: HP-Agilent-Keysight-equipment <[email protected]> Subject: [HP-Agilent-Keysight-equipment] HP8753E EEPROM Alter Issues (Again) ? I managed to get my hands on a HP437B and 8481A sensor to run some test associated with the sampler.? ? A while back when I first bought this instrument, I had trouble with U408, which I was able to copy its contents, and replace after I found a pin had broken off inside of the PLCC Socket. I thought this had been the source of my EEPROM Alter issue, which I had in the past, because I was able to then load the EEPROM Backup disk by using the SW400 (A9) Alter Switch. The EEPROM load was clearly successful from a 3.5" Floppy.? ? I just attempted to run tests?44 & 45 in an effort to prepare for sampler calibration using the 437B. Each time, I get the following notice "Correction Constants Not Stored". Does anyone know of a fault which would allow EEPROM constants to be loaded via disk when in SW400 is in Alter Position, but not when conducting Adjustment Tests from the front panel? ? Rich? |
