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.
libusb and libusbx merged
Linux_FUT can be downloaded from our GiiHub repository.
Generation 2 or Generation 3 support; it depends on a #define
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).
Linux_FUT.c
// 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.
Necessary files
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
Linux_FUT cannot be used for recovery boot (Windows only) or modified recovery boot (in both case the USB FX2 microcontroller is running with Cypress VID/PID) in case writing wrong (or corrupted) firmware to EEPROM will hinder/prevent USB conncection with TE USB FX2 module.
Writing wrong (or corrupted) firmware to EEPROM will bring the USB FX2 microcontroller to a standstill. To bring it back out of a standstill, 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.
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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