Cypress EX-USB FX3, Programmer'S Manual

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FX3 Programmers Manual, Doc. # 001-64707 Rev. *C 51
FX3 Software
4.3.3 FX3 Firmware Examples
Various firmware (application) examples are provided in the FX3 SDK. These examples are provided
in source form. These examples illustrate the use of the APIs and the firmware framework, putting
together a complete application. The examples illustrate the following
■
Initialization and application entry
■
Creating and launching application threads
■
Programming the peripheral blocks (USB, GPIF, serial interfaces)
■
Programming the DMA engine and setting up data flows
■
Registering callbacks and callback handling
■
Error handling
■
Initializing and using the debug messages
The examples include
■
USB loop examples (using both bulk and isochronous endpoints)
■
UVC (USB video class implementation)
■
USB source/sink examples (using both bulk and isochronous endpoints)
■
USB Bulk streams example
■
Serial Interface examples (UART/I
2
C/SPI/GPIO)
■
Slave FIFO (GPIF-II) examples
4.4 FX3 Host Software
A comprehensive host side (Microsoft Windows) stack is included in the FX3 SDK. This stack
includes the Cypress generic USB 3.0 driver, APIs that expose the driver interfaces, and application
examples. Each of these components are described in brief in this section. Detailed explanations are
presented in
FX3 Host Software chapter on page 189 .
4.4.1 Cypress Generic USB 3.0 Driver
A generic kernel mode (WDF) driver is provided on Windows 7 (32/64-bit), Windows Vista (32/64-
bit), and Windows XP (32 bit only). This driver interfaces to the underlying Windows bus driver or a
third party driver and exposes a non-standard IOCTL interface to an application.
4.4.2 Convenience APIs
These APIs (in the user mode) expose generic USB driver interfaces through C++ and C# interfaces
to the application. This allows the applications to be developed with more intuitive interfaces in an
object oriented fashion.
4.4.3 USB Control Center
This is a Windows utility that provides interfaces to interact with the device at low levels such as
selecting alternate interfaces and data transfers.
4.4.4 Bulkloop
This is a windows application to perform data loop back on Bulk endpoints.
4.4.5 Streamer
This is a windows application to perform data streaming over Isochronous or Bulk endpoints.