Products > Test Equipment
Possible upgrade - Agilent 34410A to 34411A
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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