...
The JTAG interface allows a fast, frequent but volatile configuration (only the FPGA is programmed and not the SPI Flash) of the TE USB FX2 module. However, only through the JTAG interface it is possible to develop and debug with Xilinx tools (e.g. Xilinx ChipScope, Xilinx Microprocessor Debugger. The JTAG interface allows also a occasional, non-volatile on-site operations such as SPI Flash bitstream download.Configuration of the
The SPI interface allows a fast, frequent and non-volatile configuration of the TE0300 module (through J3 and direct SPI programming or TE USB FX2 microcontroller and OpenFutNet), TE0320 module (through a USB host is recommended for occasional, non-volatile on-site operations such as firmware upgrade or SPI Flash bitstream download B2B connection or TE USB FX2 microcontroller and OpenFutNet), TE0630 module (through TE USB FX2 microcontroller and OpenFutNet) .
TE USB FX2 module is equipped with a Cypress EZ-USB FX2 controller (TE USB FX2 microcontroller) to provide a high-speed USB 2.0 interface. Configuration of the TE USB FX2 module through a USB host is recommended for occasional, non-volatile on-site operations such as firmware upgrade or SPI Flash bitstream download. The controller uses 4 interfaces (see here):
...