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Similar to the traditional configuration memories, SPI serial Flash memories must be loaded with the configuration data. SPI serial Flash memories have a single interface for programming, but there are multiple methods to deliver the data to this interface. This section discusses the hardware setup, the PROM file generation flow and the software flow for ISP (indirect in-system programming) of a Trenz Electronic TE0300 SPI serial Flash configuration PROM through the JTAG interface of a Xilinx Spartan-3E FPGA using Xilinx iMPACT 10.1 (with other version the procedure should be almost the same).

To write the SPI Flash memory, perform the following steps:

• Check the configuration switches against the following table:

• Connect the host computer to the micromodule through both the SPI flying leads cable and the USB cable.
• Start Xilinx ISE iMPACT. The following example shows the case of iMPACT 10.1. If the "iMPACT Project" window pops up, press the "Cancel" button.

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