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Platform Flash Configuration Storage
The Spartan-3 Starter Kit board has an XCF02S serial configuration Flash PROM to store
FPGA configuration data and potentially additional non-volatile data, including
MicroBlaze application code. To configure the FPGA from Platform Flash memory, all
three jumpers must be installed on the J8 header, indicated as
Platform Flash Jumper Options (JP1)
The Platform Flash has three optional settings controlled by the JP1 jumper, which is
located in the upper right-hand corner of the board, adjacent to the Platform Flash
configuration PROM. The JP1 jumper is indicated as
schematic is provided in
are described in more detail below.
Table 10-1: Jumper JP1 Controls the Platform Flash Options
Jumper JP1
Option
Setting
Default
Flash Read
Disable
"Default" Option
For most applications, this is the default jumper setting. As shown in
Platform Flash is enabled only during configuration when the FPGA's DONE pin is Low.
When the DONE pin goes High at the end of configuration, the Platform Flash is disabled
and placed in low-power mode.
Spartan-3 Starter Kit Board User Guide
UG130 (v1.1) May 13, 2005
Figure
The FPGA boots from Platform Flash. No additional data storage is available.
JP1
The FPGA boots from Platform Flash, which is permanently enabled. The FPGA
JP1
can read additional data from Platform Flash.
Jumper removed. Platform Flash is disabled. Other configuration data source
JP1
provides FPGA boot data.
www.xilinx.com
1-800-255-7778
3
A-4.
Table 10-1
summarizes the available options, which
Description
Chapter 10
in
Figure
1-2.
16
in
Figure
1-2. A detailed
Figure
10-1, the
38
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