Ambit256 Cable modem

This modem does not have a JTAG port, but we can access its flash via SPI.Use USB JTAG NT's new feature of SPI can do online programming the flash.

Board

Picture showing USB JTAG NT is connected. The red wire is for ISP

Connection

JTAG connector of USB JTAG NT	SPI U300
Pin 3(TDI)	Pin 5(SI)
Pin 5(TDO)	Pin 2(SO)
Pin 9(TCK)	Pin 6(SCK)
Pin 11(RESET)	Pin 1 (CS)
Pin 2(GND)	Pin 4(GND)
ISP	Short pin as indicated in the picture. The ISP method is found by one[]eye.

Definition. TAmbit256.xml
For programming, use UJmodem and it is similar to SB5102


            

Lasted Updated:December 31 2016

Vists since Jan 4,2009