5120 detect

[cablelink]

cant get 5120 to detect with jtagNT, should all the pins be soldared or just the 10 like the 5100.

[usbbdm]

cant get 5120 to detect with jtagNT, should all the pins be soldared or just the 10 like the 5100.

better use 14 pin.

[cablelink]

Thanks you for reply, I still can't get no detection with all 14 pins. Do the watchdog need to be dis to read chip?

[usbbdm]

http://www.usbjtag.com/jtagdevices/sb5120.php

If you cannot detect the CPU then connection is still the problem. Fix the connection first before consider the watchdog.

[lafraga]

Thanks you for reply, I still can't get no detection with all 14 pins. Do the watchdog need to be dis to read chip?

the watchdog does not need to be dis to detect the chip make sure you match pin 1 on jtag and pin 1 on board and if you hit detect the first time and not detect fine just hit it a second time without unpluging the modem that happened to me a few times with these modems

[usbbdm]

As of detect the CPU flash no need to disable watchdog. When program the flash it is important to disable the watchdog.
SB5120 uses software watchdog in the firmware. If you stop the CPU before it starts the firmware. This is done to stop the firmware when CPU runs the boot code. That is why it is important to type "program" right after power on the box (mostly use script).
http://www.usbjtag.com/jtagdevices/sb5120.php