Creating an spi serial flash prom file, Setting the configuration clock rate – Xilinx MIcroblaze Development Spartan-3E 1600E User Manual
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MicroBlaze Development Kit Spartan-3E 1600 Edition User Guide
93
UG257 (v1.1) December 5, 2007
Configuring from SPI Flash
R
Creating an SPI Serial Flash PROM File
The following steps describe how to format an FPGA bitstream for an SPI Serial Flash
PROM.
Setting the Configuration Clock Rate
The FPGA supports a 12 MHz configuration clock rate when connected to an M25P16 SPI
serial Flash. Set the Properties for Generate Programming File so that the
Configuration Rate
is 12, as shown in
Figure 12-5
. See “Generating the FPGA
Configuration Bitstream File” in the FPGA Configuration Options chapter for a
more detailed description.
Regenerate the FPGA bitstream programming file with the new settings.
Figure 12-4:
Set Mode Pins for SPI Mode
M0
M1
M2
J30
UG257_12_04_061506
Figure 12-5:
Set Configuration Rate to 12 MHz When Using the M25P16 SPI Flash
UG257_12_05_060806