Insert jumper on jp8 and hold prog_b low – Xilinx MIcroblaze Development Spartan-3E 1600E User Manual
Page 101
MicroBlaze Development Kit Spartan-3E 1600 Edition User Guide
99
UG257 (v1.1) December 5, 2007
Configuring from SPI Flash
R
First, turn off the power on the Spartan-3E Starter Kit board.
If the USB cable is attached to the board, disconnect it. Simultaneously connecting both the
USB cable and the parallel cable to the PC confuses the iMPACT software.
Connect one end of the JTAG parallel programming cable to the parallel printer port of the
PC.
Connect the JTAG end of the cable to Header J12, as shown in
Figure 12-15(a)
. The physical
location of Header J12 is more clearly shown in
. The J12 header
connects directly to the SPI Flash pins; it is not connected to the JTAG chain.
The JTAG3 cable directly mounts to Header J12. The labels on the JTAG3 cable face toward
the J11 jumpers. If using flying leads, they must be connected as shown in
Figure 12-15(b)
and
Table 12-2
. Note the color coding for the leads. The gray INIT lead is left unconnected.
Insert Jumper on JP8 and Hold PROG_B Low
The JTAG parallel programming cable directly accesses the SPI Flash pins. To avoid signal
contention with the FPGA, ensure that the connecting FPGA pins are high-impedance.
Force the FPGA’s PROG_B pin Low by installing a jumper on JP8, next to the PROG push
button, as shown in
Figure 12-16
. See
to locate jumper JP8 and
surrounding landmarks.
Figure 12-15:
Attaching a JTAG Parallel Programming Cable to the Board
Table 12-2:
Cable Connections to J12 Header
Cable and Labels
Connections
J12 Header Label
SEL
SDI
SDO
SCK
GND
VCC
JTAG3 Cable Label
TMS
TDI
TDO
TCK
GND
VCC
Flying Leads Label
TMS/
PROG
TDI/
DIN
TDO/
DONE
TCK/
CCLK
GND/
GND
VREF/
VREF
a) JTAG3 Parallel Connector
b) Parallel Cable III or Parallel Cable IV
with Flying Leads
UG257_12_15_060806