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Introduction
Linux_FUT is a C application for the GNU/Linux operating system based on Trenz Electronic API commands and libusb C API to program USB FX2 microcontroller firmware and FPGA bitstreams.
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| libusb and libusbx release will be officially merged from v1.0.19. These two project/libraries are already actually ("unofficially") merged. |
Linux_FUT can be downloaded from our GiiHub repository.
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Device Ids of the usb (lsusb): a C construct (#define) is used to choose between Generation 2 (DEWESoft device) and Generation 3 (Trenz Elecronic device). |
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// TE USB FX2: generation 2.0 // #define VENDOR_ID 0x0547 // #define PRODUCT_ID 0x1002 // TE USB FX2: generation 3.0 #define VENDOR_ID 0x0BD0 #define PRODUCT_ID 0x0300 |
Firmware Upgrade/Change and/or FPGA Configuration
Linux_FUT can be used (with Generation 2 and/or Generation 3 firmware) for:
- firmware update (USB EEPROM programming while the USB FX2 microcontroller is running with Trenz Electronic VID/PID): you should use a .bin file but a .iic file (EZ-USB FX2LP USB FX2 microcontroller firmware) should also work;
- FPGA configuration (SPI Flash and FPGA programming): only .bin file is supported.
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The two files needed are usb.bin and fpga.bin. In the past, they were normally packed together in a file with the extension .fwu . This file is a zip-file. To unzip it, use unzip "file.fwu". The usb.bin was delivered by the company Trenz Electronic. The FPGA.bin is generated with the Xilinx ISE. |
Firmware Recovery
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wrong corrupted or interrupted firmware => USB down USB down => (modified) recovery boot recovery boot => no LinuxFUT
Linux_FUT cannot be used for a recovery boot (Windows only) or modified recovery boot in case writingfirmware recovery. |
Writing wrong (or corrupted) firmware to EEPROM will (normally) bring the USB FX2 microcontroller to a standstill when the EEPROM firmware is running in FX2 microcontroller's RAM.
FX2 microcontroller's standstill will hinder/prevent host computer USB connection with TE USB FX2 module.
(in both cases, the USB FX2 microcontroller is running with Cypress VID/PID)
Writing wrong (or corrupted) firmware to EEPROM will bring the USB FX2 microcontroller to a standstill. To bring it To bring FX2 microcontroller's back out of a this standstill , and
the firmware recovery procedure differs upon the host operating system:
- use a recovery boot (Windows);
- use a modified recovery boot (Linux).
Under Windows, the user should instead use CyControl, CyConsole or OpenFutNet for a recovery boot. After this procedure, the user could use again Linux_FUT.
Under Linux, the user should instead use fx2loader (see also here) for a modified recovery boot. After this procedure, the user could use again Linux_FUT.
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| If the user is unsure about the suitability of a new firmware (wherever it is the source), it's a good idea to load it into RAM first to make sure it is not totally broken. |
Overview
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