Amontec JTAGkey Tiny


  • Voltage support: 2.8V up to 5V


30EUR excl VAT


# lsusb
Bus 001 Device 006: ID 0403:cff8 Future Technology Devices International, Ltd



root@warsaw /home/zoobab [2]# jtag 

UrJTAG 0.8 #1067
Copyright (C) 2002, 2003 ETC s.r.o.
Copyright (C) 2007, 2008 Kolja Waschk and the respective authors

UrJTAG is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
There is absolutely no warranty for UrJTAG.

WARNING: UrJTAG may damage your hardware!
Type "quit" to exit, "help" for help.

jtag> cable JTAGkey ftdi-mpsse 0403:cff8
Initializing on FTDI device 0403:cff8
jtag> detect
Warning: TDO seems to be stuck at 1

It seems the connection was not OK, so I rechecked the cables:

jtag> cable JTAGkey
Connected to libftdi driver.
jtag> detect
IR length: 8
Chain length: 1
Device Id: 00010100011100010010000101111111 (0x000000001471217F)
 Manufacturer: Broadcom
 Part(0):         BCM4712
 Stepping:     Ver 1
 Filename:     /usr/share/urjtag/broadcom/bcm4712/bcm4712


Put the pinout here.


It seems the GND pin on the connector is not well connected, so I took GND from the second row of female pins

Tested devices

  • WAP54Gv2