flash type

Topics about unsupported flash in here. Also please go here regularly to update your flash.def
Locked
zuropy
Junior Member
Posts: 11
Joined: Tue Jun 30, 2009 11:06 am

flash type

Post by zuropy »

Good, I'm tinkering with a new cable modem to do this, it mx25l6205 flash I've found the pins to connect to USBJTAG but I did not detect http://www.semiconductorstore.com/pdf/M ... rial64.pdf

I would like to know how to make a xml for me to detect this flash.



Unknown flash type!
Report these values http://www.usbjtag.com/vbforum 00ff,00ff,00ff
usbbdm
Junior Member
Posts: 8962
Joined: Mon Jul 18, 2005 9:33 pm

Post by usbbdm »

This is not valid flash id
What modem is this and how do you connect to it? What device you have selected?
zuropy
Junior Member
Posts: 11
Joined: Tue Jun 30, 2009 11:06 am

Post by zuropy »

the model of cablemodem is thomson 770.

http://medialibrary.thomson.net/Communs ... 68.pdf.PDF

flash type is mx25l6205

http://www.semiconductorstore.com/pd...x/Serial64.pdf

http://img705.imageshack.us/i/imag0059o.jpg/

the conexion is

JTAG connector of USB JTAG NT Pin on the flash
Pin 4(GND) ISP ( I think it's the chip ping up the small remote.)
Pin 3(TDI) Pin 15(SI)
Pin 5(TDO) Pin 8(SO)
Pin 9(TCK) Pin 16(SCK)
Pin 11(RESET) Pin 7 (CS)
Pin 2(GND) Pin 10(GND)


i need xml to conprobate that the pins are correct.
zuropy
Junior Member
Posts: 11
Joined: Tue Jun 30, 2009 11:06 am

Post by zuropy »

can you help me?¿?


thanks
usbbdm
Junior Member
Posts: 8962
Joined: Mon Jul 18, 2005 9:33 pm

Post by usbbdm »

You have not indicate if you can detect the CPU properly or not .That is more important than the flash itself. JTAG need to talk to CPU and then to flash. If you cannot talk to CPU then you cannot talk to flash.
zuropy
Junior Member
Posts: 11
Joined: Tue Jun 30, 2009 11:06 am

Post by zuropy »

communicate with the boardcom? not connect the pins boarcom, I connect directly to the flash. boarcom you have is the BCM3380.
Koevoet
Junior Member
Posts: 298
Joined: Sat Nov 18, 2006 8:29 am

Post by Koevoet »

How sure are you that you have the correct ISP pin ??, looking at your picture , i would say that is not the ISP pin, therefore you are not getting a proper detection.

Regards
usbbdm
Junior Member
Posts: 8962
Joined: Mon Jul 18, 2005 9:33 pm

Post by usbbdm »

zuropy wrote:communicate with the boardcom? not connect the pins boarcom, I connect directly to the flash. boarcom you have is the BCM3380.
In your case you need to find the ISP pin yourself. If ISP is not found you cannot access flash directly.


Maybe we can use the JTAG to talk to the SPI. That is what I am doing for other devices. If we have proper JTAG pins we should consider using them since it is much easier to connect to JTAG than soldering on the flash chip.
CAPONE
Junior Member
Posts: 5011
Joined: Sat Dec 27, 2008 3:25 pm

Post by CAPONE »

Why Don't you Supply the 3.3 or 5 volts Directly to SPI Flash pin 2???????
Untill the ISP Pin is Found this will Bypass the Need for Now to Find the ISP Pin and See if you get to Properly Detect the Flash Chip.
"If you give a man a fish you feed him for a day. If you teach a man to fish you feed him for a lifetime."
zuropy
Junior Member
Posts: 11
Joined: Tue Jun 30, 2009 11:06 am

Post by zuropy »

how I can locate the pin isp "?. other pins are similar netgear


JTAG connector of USB JTAG NT Pin on the flash
Pin 4(GND) ISP ???
Pin 3(TDI) Pin 15(SI) ok
Pin 5(TDO) Pin 8(SO) ok
Pin 9(TCK) Pin 16(SCK) ok
Pin 11(RESET) Pin 7 (CS) ok
Pin 2(GND) Pin 10(GND) ok
CAPONE
Junior Member
Posts: 5011
Joined: Sat Dec 27, 2008 3:25 pm

Post by CAPONE »

zuropy wrote:how I can locate the pin isp "?. other pins are similar netgear


JTAG connector of USB JTAG NT Pin on the flash
Pin 4(GND) ISP ???
Pin 3(TDI) Pin 15(SI) ok
Pin 5(TDO) Pin 8(SO) ok
Pin 9(TCK) Pin 16(SCK) ok
Pin 11(RESET) Pin 7 (CS) ok
Pin 2(GND) Pin 10(GND) ok
If you follow SB6120 Connections RED WIRE Goes to ISP Pin. However You don't know on the MOBO Where the ISP Connection is So thats Useless for Now.

You can However Supply 3.3 volts or 5 volts to Pin 2 Of SPI Flash Chip And see if you can detect the Chip Properly.
"If you give a man a fish you feed him for a day. If you teach a man to fish you feed him for a lifetime."
zuropy
Junior Member
Posts: 11
Joined: Tue Jun 30, 2009 11:06 am

Post by zuropy »

Hello tundra, 5v to this ping???

ttp://s2.subirimagenes.com/otros/previo/thump_6226984dibujo.jpg
CAPONE
Junior Member
Posts: 5011
Joined: Sat Dec 27, 2008 3:25 pm

Post by CAPONE »

zuropy wrote:Hello tundra, 5v to this ping???

ttp://s2.subirimagenes.com/otros/previo/thump_6226984dibujo.jpg
YES thats the VCC Pin for the SPI CHip. Mind you when you Supply the 3.3 or 5 Volts to that Pin You dont use the Modem POWER SUPLLY Or you will Kill the Modem.
"If you give a man a fish you feed him for a day. If you teach a man to fish you feed him for a lifetime."
zuropy
Junior Member
Posts: 11
Joined: Tue Jun 30, 2009 11:06 am

Post by zuropy »

i conect ping 2 to 3.3v and 5v but doesen detect chip

-flshdct 0
Unknown flash type!
Report these values http://www.usbjtag.com/vbforum 009f,009f,009f
CAPONE
Junior Member
Posts: 5011
Joined: Sat Dec 27, 2008 3:25 pm

Post by CAPONE »

zuropy wrote:i conect ping 2 to 3.3v and 5v but doesen detect chip

-flshdct 0
Unknown flash type!
Report these values http://www.usbjtag.com/vbforum 009f,009f,009f
Are you connecting the Ground from same sorce the 3.3/5 volts come from?
"If you give a man a fish you feed him for a day. If you teach a man to fish you feed him for a lifetime."
Locked

Who is online

Users browsing this forum: No registered users and 2 guests