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This documentation describes the SW API supported by standard Trenz Electronic FPGA modules (TE USB FX2 FPGA module) equipped with Cypress EZ-USB FX2 microcontroller (currently: TE0300, TE0320 and TE0630).

TE USB FX2 module is able to communicate with host computer's USB using

Info

In order to provide a user interface for driver functions, dynamic link library "TE_USB_FX2_CyAPI.dll" and "CyAPI.lib" have been used.

C++ applications (running on host computer) use directly TE_USB_FX2_CyAPI.dll based on CyAPI.lib.

To avoid copying back and forth large amount of data between these two DLLs, data is passed by reference and not by value.

Host computer requirements

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When using TE_USB_FX2_CyAPI.dll API, a host computer should meet the following requirements:

  • Operating system: Microsoft Windows 2000, Microsoft Windows XP, Microsoft Windows Vista, Microsoft Windows 7;
  • USB driver: Trenz Electronic USB FX2 driver (see here for dedicated driver installation instructions);
  • Interface: USB 2.0 host;
  • C++ Run Time: it is contained in
    • Microsoft Visual C++ 2010 x64 Redistributable Setup: vcredist_x64.exe for 64 bit;
    • Microsoft Visual C++ 2010 x86 Redistributable Setup: vcredist_x86.exe for 32 bit.

The second set of API is API commands. They are binary data that are sent/received by the EZ-USB FX2 microcontroller. API commands provide an easy way to create a communication interface with Trenz Electronic FPGA modules.

API commands are sent using a function of the first API set: TE_USB_FX2_SendCommand(). This function is able to pass the API commands (of the second API set) to the MicroBlaze embedded processor and receive the response binary code of using endpoint EP1.

A combination of TE_USB_FX2_SendCommand() and TE_USB_FX2_GetData() functions is able to read data from FPGA RAM.

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