Using A Separate Jtag Parallel Programming Cable (Optional) - Xilinx Spartan-3A User Manual

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Using a Separate JTAG Parallel Programming Cable (Optional)

Using Embedded USB JTAG Programmer
jumpers installed between the J23 and J25 headers, the embedded USB programmer
communicates directly to the SPI Flash PROM. However, it is possible to communicate
directly to the SPI Flash PROM using another a programming cable, such as:
•
•
Connect the cable directly to the J23 header block, as illustrated in
are not provided with the Spartan-3A/3AN Starter Kit board but can be purchased
separately.
Spartan-3A/3AN Starter Kit Board User Guide
UG334 (v1.0) May 28, 2007
Creating and Programming Configuration Images for SPI Serial Flash
Insert a jumper in jumper block J1, as shown in
setting to program the STMicro M25P16 PROM. Alternatively, set the jumper to
program the Atmel AT45DB161D DataFlash PROM.
Insert four jumpers between jumper blocks J25 and J23, as shown in
jumpers connect the embedded USB JTAG programmer on the J25 jumper pins to the
SPI PROM via the J23 jumper pins.
Set the FPGA mode select pins for Master SPI mode using jumper J26, as shown in
Table 12-4. The location of the J26 jumper appears in
Disable the Platform Flash PROM by removing jumper J46, shown in
Table 12-4.
For direct programming, the FPGA's PROG_B pin must be held Low. Insert a jumper
in jumper J16, as shown in
allow the JTAG programmer full access to the SPI PROM pins.
Re-apply power to the board.
Xilinx Parallel Cable IV with flying leads
Digilent JTAG3 or JTAG-USB
a) JTAG3 Parallel Connector
Figure 12-5: Attaching a JTAG Parallel Programming Cable to the Board
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Figure
Figure 12-4. This holds all the FPGA's I/O in three-state to
is the preferred programming method. With the
programming cable
b) Parallel Cable III or Parallel Cable IV
with Flying Leads
12-4. The figure shows the
Figure 12-4. These
Figure 12-1.
Figure 12-1
Figure 12-5. These cables
UG334_c12_05_052407
and
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