NAS Forum

Hellow

I have problem for up date the NAS dual HDD , the system is crash , and disapear .
I try to reprograming again as the instution to give the '' HWguru''. The system to request
'' Are you sure to program boot y/n '' i select yes , but the connection telnet is down .
Meby the PC is go to sleep mode and telnet is disconnect .

After that I try to connect again with telnet but is not possible .

Ecxisting any solution for this problem ???.

Thank you

Hi HWguru

I have read the Link to sujest me adout the problem to have with my MRT NAS . I don't try all this time to fix the problem .

Because Is not have time to work on this , and I like to know good step by step all the procedure . At now I will try to fix, and I would like to help me on this , is the first time to programing with JTAG .

I read more problem in the forum about this subject . And select all item to need .I don't find the Unbricking guide http://mrt.nas-central.org/index.php/The…nbricking_guide this link in not work ?.

1. About the JTAG I made by hand one with out Buffer , you are sujest one drawing at the http://forum.nas-forum.org/index.php?pag…0b48d9a89450990

2. The Newest firmware for the MRT NAS DUAL (SATA) http://www.embeded-systems.net/firmware.htm G5S504020033B34.tar.gz

3. Flash programmer NAS Flash Tools 2.0.1.175 NAS_FlashTool_2.0.1.745.zip & Tinky

4. LPT driver software http://www.naughter.com/download/port95nt.exe . This port95nt.exe is need to run before eneble the dedug mode ,? nad how to configyred EPP ?. Please give information for this .

5. Connect one 100 ohm resistor as the photo ( MRT R36 Hark ) in order to enable debug mode.

6. Connected JTAG cable to adapter only after start of NAS . IT IS IMPORTANT because otherwise debug mode does not work! , Or connected the JTAG cable and ofter connect 1 to 17 and enable the debug mode .

7. Run the NAS Fash Tool and after the test as the instuction http://www.nas-2000.org/mwiki/index...sh_through_JTAG write the flash

8. If all is Ok watch the output of ''REDBOOT '' at this point please give to udrestand better what at meed ?

9. Unzip the file G5S504020033B34.tar.gz and find the next files ( zImage, hddapp.tgz, rd.gz) , and upload one by one with the TFTP server . ( is possible to propose one program)

10. If all is Ok , NAS booting fine (check DHCP server log for its IP) .

Please informed if have in any step wrong ?

Thank you .

Guten Morgen Hwguru

I try all step's . Run the NAS flashtols new version and chek the cable with the buttton '' test cable '' all is OK , the ' 'LED test '' is no have any LED on , this is the two step before connect to the NAS . But if connect to the NAS have problem , I show you the repost , At this time the R36 is connect and i connect after the Power and the 1,2 to 17 . I try with the NAS Flash tools old version is the same problem , but the " LED test '' is ON the LED correct .

Testing cabletype 1
JTAG-IDCODE: 0x00000bc1 - not OK
Expected: 0x00526fa1
Bypass-test: 0xaaab5554 - OK

Testing cabletype 2
JTAG-IDCODE: 0xffffffff - not OK
Expected: 0x00526fa1
Bypass-test: 0xffffffff - not OK

Expected: 0xaaab5554

Error:
- No cable detected
- Testdevice not connected

Some errors detected!



Thanks

Vassilis csystem

Hi Hwguru

I have connect all time the JTAG connector on the NAS , and after push the button power ON position , the next step is to connect the pin 1,2 to the 17 .
but no have any other action .

The length of cable to connect the LPT connector and JTAG is 60 cm , is dig ?
I check two times the circuit of the JATG with any WRONG connections but all is OK . I change also the led resistor from 100 ohm to the 1k ( for the lower dissipation current signal on the LED)

Vassilis
Csystem

Hi Hwguru

The fist time to test is us the resistor 100 ohm after change this to 1k ,I install again the 100ohm .

The loopback/shortplug test work is ok .

I cut lenght of the cable to connect the LPT connector and NAS connector . I reminred you use the JTAG with out Buffer . And the cable is ONE .

I send you the answer about this test .

VASSILIS

Csystem

Hi Hwguru

The answer is negative , all is the same ,look the report .

With power ON NAS the report is the next

Testing cabletype 1
JTAG-IDCODE: 0x00000bc1 - not OK
Expected: 0x00526fa1
Bypass-test: 0xaaab5554 - OK

Testing cabletype 2
JTAG-IDCODE: 0xffffffff - not OK
Expected: 0x00526fa1
Bypass-test: 0xffffffff - not OK
Expected: 0xaaab5554

Error:
- No cable detected
- Testdevice not connected

Some errors detected!

With power OFF NAS the report is the next

Testing cabletype 1
JTAG-IDCODE: 0xffffffff - not OK
Expected: 0x00526fa1
Bypass-test: 0xffffffff - not OK
Expected: 0xaaab5554

Testing cabletype 2
JTAG-IDCODE: 0xffffffff - not OK
Expected: 0x00526fa1
Bypass-test: 0xffffffff - not OK
Expected: 0xaaab5554

Error:
- No cable detected
- Testdevice not connected

Some errors detected!

I hope to have same good idea

VASSILiS

CSystem

Hi Hwguru

I work this JTAG with out buffer Link

About the connection I have try all this .

VASSILIS

csystem

Hi Hwguru

You have some good idea ?

Vassilis

csystem

Hi Hwguru

I try with the small cable 12 cm , but nothing , the report to send you is after to cut the cable.
I have one old PC 486 , I try now with this PC .

Vassilis
Csystem

Hi Hwguru

I test all with other PC , ( not PC 486) but with laptop 586 , but the result is the same .

I give you same inforamtion if you help . With the NAS 2000 Flash Tools 1.0.4.191 , Try to test LED cable 1 all led is on ok , with the test Cable 2

If test the led TMS all led is OFF , is test led TCK the led TMS is ON , if test the led TDI the led TCK is ON . All this hapen and with the first PC.



Vassilis

csystem

Hi HWguru

Please looking the picture to send you .

About the ''system crashed' , the system is not finish the firmware update thru the LAN , and after connect with telnet and also is not finish good ,


Vassilis
Csystem

Dear HWguru

I have try all but the same rusalt . Maby is better to try with the buffer as to tell me , Please informed about the correct connetion on the JTAG port for the NAS MRT dual HDD .
And the spesification of the SL 3316-6 .
I have see the drawing of the kuzito , i use all cable to connect the Jtag on the motherboard ? .

Vassilis
Csystem