Direct Spi Flash Programming Using Impact - Xilinx Spartan-3A User Manual

Chapter 12: SPI Serial Flash
First, turn off the power on the 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 J23, as shown in
connects directly to the SPI Flash pins; it is not connected to the JTAG chain.
The JTAG3 cable directly mounts to Header J23. The labels on the JTAG3 cable face toward
the J11 jumpers. If using flying leads, they must be connected as shown in
Table
Table 12-6: Cable Connections to J23 Header

Direct SPI Flash Programming Using iMPACT

The following steps describe how to program the SPI PROM using the iMPACT software
and a Xilinx programming cable.
1.
2.
3.
98
12-6. Note the color coding for the leads. The gray INIT lead is left unconnected.
Cable and Labels
J23 Header Label
JTAG3 Cable Label
Flying Leads Label
Click Direct SPI Configuration from within iMPACT, as shown in
1
Figure 12-6: iMPACT Supports Direct Programming for SPI Serial Flash Memories
Right-click in the area indicated.
Select Add SPI Device.
www.xilinx.com
Connections
SEL SDI SDO
TMS TDI TDO
TMS/ TDI/ TDO/
PROG DIN DONE
Spartan-3A/3AN Starter Kit Board User Guide
Figure 12-5a. The J23 header
Figure 12-5b
SCK GND VCC
TCK GND VCC
TCK/ GND/ VREF/
CCLK GND VREF
Figure 12-6.
3
2
UG332_c4_03_101006
UG334 (v1.0) May 28, 2007
R
and