
JTAG-Booster for Analog Devices Blackfin
8 JTAG_ADSP-BLACKFINa.doc
1.4. Connecting your PC to the target system
The JTAG-Booster can be plugged into standard parallel ports (LPT1-3) with a
DB25-Connector.
Module Élan486
LPT1-3
Élan
SC400
11
The target end of the cable has the following reference:
12*34567 8
TCK GND TMS TRST# NC TDI TDO +3.3V
*PIN 2 can be detected by the thick cable.
To connect your design to the JTAG-BOOSTER you need a single row berg
connector with a spacing of 2.54mm on your PCB. The names refer to the target:
Pin 7 is the target’s TDO pin and is connected to the JTAG-Booster’s TDI pin.
The 3.3V version of the JTAG-Booster (FS part number 285) is delivered
together with this package. Don’t use the 5V version of the JTAG-Booster (FS
part number 227) with a 3.3V target. Don’t apply 5V to the 3.3V version of the
JTAG-Booster!
Your target must be able to power the JTAG-Booster, it draws about 100mA.
Before you start the program, the JTAG-BOOSTER must be plugged to a parallel
interface of your PC and to the 8 pin JTAG connector on the target.
The utility is started with the general command line format: JTAGxxx