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To generate your own firmware upload file, please read the document “Generating_FWU_file.doc” in the “USBFWUTool” folder.

FWU file generation

In order to generate the FWU file you shall

1. generate a bit-stream file from your Xilinx EDK design;

2. generate a PROM file from the bit-stream file;

3. generate a FWU file from the PROM file.

bit-stream file from your Xilinx EDK design

In order to generate a .bit bit-stream file from your Xilinx EDK design, you shall

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In the folder corresponding to the path you chose as the output file location, you should find the fpga.bin PROM file.

10.2.4.3FWU file from the PROM file

Once you have got your fpga.bin PROM file, you can proceed and generate your FWU (= FirmWare Upgrade) file. The FWU file is a ZIP archive containing 3 files:

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10.2.4.3.1Bootload.ini file

The step4_user\Bootload.ini file defines some module start-up options. Version 1.0 of Bootload.ini has the following structure:

• [Info] – information section (do not edit this section)

  • Version – Bootload.ini file format version

  • DeviceType – 3 stands for current device type

• [Settings]: settings section

  • FPGABitSwap – see Xilinx UG332: Spartan-3 Generation Configuration User Guide, chapter SelectMAP Data Ordering (default = 1 = do bit swapping)

  • FPGAPowerON – value of FX2_PS_EN after SPI Flash memory programming (see paragraph 6.8.2 Slide Switch S2) (default = 1 = power on after upgrade)

10.2.4.3.2usb.bin file

The step4_user\usb.bin file contains the firmware to be written in the large EEPROM of the EZ-USB FX2LP USB microcontroller and loaded at module start-up to implement the DEWESoft instruction set.

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