Tek CSA7404/TDS7000 repair project (Upgraded memory/CPU)

[squadchannel]

dbFsIoctl: invalid code 3

This error is not a concern. It exists in my 7104 too.

[mda]

Thanks.

[coromonadalix]

be careful   as post#815  i re-copy here

In my case the target nam had to be this name i mentioned, because TekScope would be buggy  or would not start

This is what works for me in the nvram content

boot device          : sm
processor number     : 0
host name            : host
file name            : c:\vxBoot\vxWorks.st
inet on ethernet (e) : 192.168.0.1:ffffff00
inet on backplane (b): 192.168.0.2:ffffff00
host inet (h)        : 192.168.0.1
gateway inet (g)     : 192.168.0.2
user (u)             : anonymous
ftp password (pw)    : anonymous
flags (f)            : 0x1000
target name (tn)     : tds7000 -----> i've been told to keep it like this, if not, TekScope doesn't save some  settings ??
startup script (s)   : c:\vxBoot\topscript.hw
other (o)            : 0x0

Still have doubts on the flags and other sections,

if i put something else in the flag like 0x1008, tekscope stalls
if i change other setting like 0x1000  TekScope starts but no traces of ch1 ch2 .....  cant recall what i put ... 

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The  dbFsIoctl: invalid code 3    error you have,  may come from the topScript.hw file

thread at : https://www.eevblog.com/forum/repair/boot-problem-on-tektronix-tds7404-scope/ 


it direct to lines like :   

cd "dbfs:c:/vxBoot"   

dbfs:c:/vxBoot

[mda]

Thank-you. I am getting there!
I did check for LF and CR but had only LF in my c:\vxBoot\topscript.hw but still get the error:
 dbFsIoctl: invalid code 3
Regards

[squadchannel]

Code: [Select]

    ################### topScript starts ###############################

 
 

     cd "dbfs:c:/vxBoot"

   
    ld < TekScope.o
    ld < TekScopeSM.o

    pDbDev = ramDevCreate(0, 512, 1152, 1152, 0)
    pDBfs  = dosFsMkfs("/db", pDbDev)
    copy ("TekScope.DBF", "/db/TekScope.DBF")
   
    overrideFPdefaults()

    measurePPCtimebase


etc...

As for the contents of topScript.hw, there is no command before "topScript starts", so it seems to be an error occurring before topScript.hw.
I don't think you need to worry about it. Doesn't anyone else get this error?

[John Harry]

Which software do you use to connect the tektronic CSA7404? I use "tera term" software or Terminal software to connect TDS7104 but not useful. Please , Tell me . Thanks

[mda]

I used Putty but found out that it corrupted the data I put in, so I have used Teraterm with a god result.
Regards

[coromonadalix]

Terraterm    Termite  Hyper-Terminal, Multi terminal 1.0.2 (you have to create some profiles in it)

Termite in my case,  but you have to enter the command  in the white bottom box / bar of the software (somewhat irritating)

Putty is a more advanced software, i'm not used to it


Normally  with no errors,   you have the final message in VxWorks    Running at  xxxx ticks  etc .....

[John Harry]

Do i use a rs232-ttl converter and connect pin 11, pin 12, pin 15 of IC max232 on board PPC, right?

[squadchannel]

Of course it is possible, but you can also use the serial port of an Arduino or other microcontroller board.

[charlyd]

the TDS7054 is a different board series

[charlyd]

just of testing purpose :
does anybody know if i can test a TDS6104 ACQ board in a TDS7000 chassis?  i mean are the connector the same.  i want to check some working trigger chips before moving them to a 7000 board.

[Ghastly]

Will this amount of wear on the gold contacts affect accuracy? If so is there a way I can reverse this? 292D adapter, the actual front connector seems okay.   

[coromonadalix]

mm can't recall the name,    there was some chemicals who could re-deposit   plating on pcb's ... 

NOT electroplating

[charlyd]

any news yet on testing a TDS6000 acq board in a TDS7000 chassis, are the 3 main connectors  2 for most all power supplies and a interconnect for communication/data.

[colorburst]

Their PPC boards are not compatible. https://www.eevblog.com/forum/buysellwanted/wtb-tek-tds7000-series-ppc-board-pn-671-5461-00-679-5461-00/

[John Harry]

i have a TDS7104 and i set boot as image for nvram but it does not operate even though it displays 'P' after 'L' symbol, i reboot machine and it display as image. How to repair the boot correctly? Please , tell me . Thanks

[coromonadalix]

see post  829  in this thread

have you checked if the NVram battery is good or dead ?  witch model do you have ...  one as a clipped battery on it,  the other ... you need to remove it from the pcb


Target should not be     "target"

[John Harry]

hello everyone
I have entered the tektronic software by setting the boot as in picture 1, but I can only enter the software the first time when I reinstall the POWERCAP
When I turn off the computer and restart it, the computer shows a logo error (still has the 'P' boot icon) and the terminal software shows an error as in picture 2
And if I want to enter the software, I have to remove the POWERCAP and reinstall the boot as in picture 1, this is too annoying, how should I fix it, please? (tektronic tds7104)


oh , i see that error 'tRootTask' when i boot first time (image 3), so how should i fix that ( battery is good ) ? Replacement NVRam or repair PPC board, right?

[hazelnutsky]

charlyd,

How many working trigger chips do you have?  I am in need of one, and the only lead is a guy in the USA, who will not warranty they work.

[44kgk1lkf6u]

Hey, guys.  I don't have one of these oscilloscopes.  But the thread is interesting.

Is it possible to connect things to the TekConnect probe interface on the high bandwidth models with an ordinary BMA to SMA adapter?

Does the PowerPC processor load its software by talking to the IDE controller as a PCI master?  I was under the impression that Windows (at least 2000) uses NTFS while VxWorks does not support NTFS.  How does the PowerPC processor read the file system?

Why is the optical drive on the back?  This seems to be the case in some HP oscilloscopes as well such as the 54845B.

[squadchannel]

Does the PowerPC processor load its software by talking to the IDE controller as a PCI master?  I was under the impression that Windows (at least 2000) uses NTFS while VxWorks does not support NTFS.  How does the PowerPC processor read the file system?

Communication between the PowerPC and the HDD is via a PCI bridge driver loaded by Windows.
There is no direct IDE driver or chipset control.

Why is the optical drive on the back?  This seems to be the case in some HP oscilloscopes as well such as the 54845B.

rarely used.

[44kgk1lkf6u]

Does the PowerPC processor load its software by talking to the IDE controller as a PCI master?  I was under the impression that Windows (at least 2000) uses NTFS while VxWorks does not support NTFS.  How does the PowerPC processor read the file system?

Communication between the PowerPC and the HDD is via a PCI bridge driver loaded by Windows.
There is no direct IDE driver or chipset control.

I see.  That explains why they can share a file system.  But if Windows is responsible for reading the PowerPC software, why is its path stored in the NVRAM on the PowerPC board?

[squadchannel]

Is it possible to connect things to the TekConnect probe interface on the high bandwidth models with an ordinary BMA to SMA adapter?

adapters are available for the TekConnect connectors used in the 7404 and 7704.
TCA-BNC, to convert to BNC
TCA-SMA, to convert to SMA
TCA-1MEG, which performs impedance conversion to the Tekprobe system, and others.

I see.  That explains why they can share a file system.  But if Windows is responsible for reading the PowerPC software, why is its path stored in the NVRAM on the PowerPC board?

There may have been a slight misstatement.
not controlling the HDD directly via the Windows driver. As you said, VxWorks would not be able to recognize NTFS.

Rather, the Windows kernel? My interpretation is that it is through it.

that if there is a read request from the HDD with a file path specification form VxWorks, it is processed by Windows and the file is transferred to the vxWorks, This way, the file system is irrelevant.

Someone should be able to provide a detailed explanation.

[44kgk1lkf6u]

Is it possible to connect things to the TekConnect probe interface on the high bandwidth models with an ordinary BMA to SMA adapter?

adapters are available for the TekConnect connectors used in the 7404 and 7704.
TCA-BNC, to convert to BNC
TCA-SMA, to convert to SMA
TCA-1MEG, which performs impedance conversion to the Tekprobe system, and others.

I was thinking about whether there are cheaper alternatives.  For example, 2466280-1 and 73386-5260 (out of stock at the time of checking) go for USD 28.97 and USD 10.38 on Mouser.  A fraction of what used TekConnect adapters cost.