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| Possible upgrade - Agilent 34410A to 34411A |
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| plesa:
To one member here I make a promise to check the internals of 34410A and 34411A. After removing covers there was small surprise - boards seems to be identical!! On both is marking 34410A and also sticker on 64 MBit Flash inside 34411A meter has marking 34410A:) In brief the main difference is reading speed - for more check http://literature.cdn.keysight.com/litweb/pdf/5989-4039EN.pdf?id=744074 This automatically triggered next step - check firmware, but unfortunately meters seems to be based on VxWorks. Schematic is available, no information about 34411A in it, maybe JM1102 and JM1103 position needs to be found. http://www.keysight.com/owc_discussions/thread.jspa?threadID=36971&tstart=-1 In attachment is high resolution picture of main board from internet. Stay tunned. |
| HighVoltage:
Thanks for sharing this. I just bought a broken 34410A and this schematic will help a lot. Do you also have a parts list of all components, as we know it from the 34401A? |
| nukie:
Very nice looking forward to your further investigation |
| plesa:
Unfortunaltelly units which I can afford to brick do not have J1003 and U1101 (75LV4737) populated. So I decided to start with L4411A which I can brick. Debug terminal output (9600 baud rate if someone is going to follow) --- Code: ---Attaching interface lo0...done Adding 26466 symbols for standalone. AMDFLASH -> rhapsodyInit: programInguard 0x13f87b8 (tOxf): FPGA ready rhapsodyInit: initInstrumentEngine KOM_gpib_config KOM_int_cfgn 0x1206bb0 (tUsb): Config EBIU USB Asynchronous Timings 0x1206bb0 (tUsb): Previous USB EBIU_DCR_BR: 10188398 0x1206bb0 (tUsb): NEW USB EBIU_DCR_BR: 10188368 0x1206bb0 (tUsb): Config EBIU USB Synchronous Timings 0x1206bb0 (tUsb): Previous USB EBIU_DCR_BR: 10188368 0x1206bb0 (tUsb): NEW USB EBIU_DCR_BR: 10188162 0x11d4cb8 (tPollVbus): USB connectPullUp = 0 IP address = 192.168.0.5 +------------------------------------------------------------ | GPIB is enabled | USB is enabled | Sockets Server is running on port 5025 | Telnet Server is running on port 5024 | VXI-11 Server is running | WEB Sockets Server is running on port 5042 | AllegroTaskInit successful | Web Server is running +------------------------------------------------------------ -> help help Print this list ioHelp Print I/O utilities help info dbgHelp Print debugger help info nfsHelp Print nfs help info netHelp Print network help info spyHelp Print task histogrammer help info timexHelp Print execution timer help info h [n] Print (or set) shell history i [task] Summary of tasks' TCBs ti task Complete info on TCB for task sp adr,args... Spawn a task, pri=100, opt=0x19, stk=20000 taskSpawn name,pri,opt,stk,adr,args... Spawn a task td task Delete a task ts task Suspend a task tr task Resume a task d [adr[,nunits[,width]]] Display memory m adr[,width] Modify memory mRegs [reg[,task]] Modify a task's registers interactively pc [task] Return task's program counter Type <CR> to continue, Q<CR> to stop: iam "user"[,"passwd"] Set user name and passwd whoami Print user name devs List devices ld [syms[,noAbort][,"name"]] Load stdin, or file, into memory (syms = add symbols to table: -1 = none, 0 = globals, 1 = all) lkup ["substr"] List symbols in system symbol table lkAddr address List symbol table entries near address checkStack [task] List task stack sizes and usage printErrno value Print the name of a status value period secs,adr,args... Spawn task to call function periodically repeat n,adr,args... Spawn task to call function n times (0=forever) version Print VxWorks version info, and boot line NOTE: Arguments specifying 'task' can be either task ID or name. value = 1 = 0x1 -> version VxWorks (for Agilent KOM PPC405, SA27E rev1) version 5.5.1. Kernel: WIND version 2.6. Made on May 22 2015, 14:33:34. Boot line: emac(0,0)host:vxWorks h=10.1.1.2 e=169.254.9.80 u=demo pw=demo tn= value = 78 = 0x4e = 'N' -> --- End code --- |
| plesa:
Partial success. L4411A is now 34411A for this change only header of file needs to be changed. In file agt34411_instrument_rev241.xs change row "%model=34411A" to "%model=L4411A" Meter boot up correctly and in LXI it is 34411A now :-+ It is also possible to downgrade L4411A to 34410A without any issue. Only the front panel will be off.After this upgrade L4411A is working in BenchVue :-+ Similar attempt with 34410A: Firmware upload by Firmware Update utility finished correctly. But after restart there is message on display : "Please load 34410A firmware" :-/O Further investigation needed, so stay tuned. |
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