Products > Test Equipment
Agilent L4411A Multimeter teardown
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coromonadalix:
U1104  ATMLH220  16cm    who would be an 24c16  i think,     gonna try a dump,  but i dont know where to put the system in reset and hold it

https://ww1.microchip.com/downloads/en/DeviceDoc/doc0180.pdf
coromonadalix:
that's all folks
coromonadalix:
oh   just found this,  is it a debug port    a com port ??

I'm gonna try to find an ftdi  interface ...
HighVoltage:
Thanks for all these nice pictures!

Yes, try to read the interface during bootup, nice find.

coromonadalix:
9600 N 8 1   with an ftdi dongle at 3.3 volts
it does  show this :


Attaching interface lo0...done

Adding 26466 symbols for standalone.
AMDFLASH
-> rhapsodyInit: programInguard
0x13f87b8 (tOxf): FPGA ready
rhapsodyInit: initInstrumentEngine
KOM_gpib_config
KOM_int_cfgn
0x1206c68 (tUsb): Config EBIU USB Asynchronous Timings
0x1206c68 (tUsb): Previous USB EBIU_DCR_BR: 10188398
0x1206c68 (tUsb): NEW USB EBIU_DCR_BR: 10188368
0x1206c68 (tUsb): Config EBIU USB Synchronous Timings
0x1206c68 (tUsb): Previous USB EBIU_DCR_BR: 10188368
0x1206c68 (tUsb): NEW USB EBIU_DCR_BR: 10188162
0x11d4d70 (tPollVbus): USB connectPullUp = 1


But doesn't go as far as  the : https://www.eevblog.com/forum/testgear/possible-upgrade-agilent-34410a-to-34411a/     thread   ???  loll    i need to read more   :palm:

BUT does respond to help

>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
version
VxWorks (for Agilent KOM PPC405, SA27E rev1) version 5.5.1.
Kernel: WIND version 2.6.
Made on Oct 19 2010, 19:20:14.
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'
->

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