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Configurable FPGA I&O modules
简介:Each FPGA-based I/O module includes a Xilinx FPGA chip to implement and execute functionality which typically can't be met by fixed-functionality I/O modules and to achieve highest cycle-rate inner control loop implementations. The wide range of tranceiver types supported by the 3xx I/O modules allow you to connect your design with your hardware.Ø Key functionality provided by the FPGA I/O ...
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Each FPGA-based I/O module includes a Xilinx FPGA chip to implement and execute functionality which typically can't be met by fixed-functionality I/O modules and to achieve highest cycle-rate inner control loop implementations. The wide range of tranceiver types supported by the 3xx I/O modules allow you to connect your design with your hardware.

Ø         Key functionality provided by the FPGA I/O modules

Ø         Digital pulse train generation and capture implementations for:

Ø         PWM, Capture, Quadrature Decoding, …

Ø         Event-based interrupt, trigger, and inversion support

Ø         Inter-system, -sensor/actuator, and -chip protocols (SPI, I2C, …)

Ø         Generic digital inputs and outputs

Ø         Analog I/O with lowest latency and/or special synchronization schemes

Ø         Highest cycle-rate algorithmic implementations of system designs in combination with above functionality for very fast inner control loops

There is no need for you to deal with FPGA programming unless you decide to implement FPGA functionality on your own using Speedgoat's FPGA engineering kits or other tools.

Because FPGAs run at much higher 'speeds' than software-based designs they are also ideal to implement and co-execute very fast algorithmic subsystems on the configurable FPGA I/O module together with the upper level 'slower' dynamics on a software-based system (CPU) to further increase sample rates. Configurable FPGA-based I/O modules are therefore oftentimes an excellent alternative to other 'fast' DSP or Microcontroller based subsystems.

Overview FPGA-based I/O modules

I/O module

FPGA chip

# logic cells

Standard I/O lines

IO301

Xilinx Virtex-II

7k

64 TTL

IO302

Xilinx Virtex-II

7k

32 RS422

IO303

Xilinx Virtex-II

7k

16 TTL and 24 RS422

IO304

Xilinx Virtex-II

7k

32 LVDS

IO311

Xilinx Virtex-II

24k

64 TTL

IO312

Xilinx Virtex-II

24k

32 RS422

IO313

Xilinx Virtex-II

24k

16 TTL and 24 RS422

IO314

Xilinx Virtex-II

24k

32 LVDS

 

I/O module

FPGA chip

# logic cells

Standard I/O lines

Auxiliary I/O lines
(basic module)

IO322

Xilinx Virtex-4

41k

30 RS485

56 LVCMOS plus 4 LVDS or 32 LVDS

IO323

Xilinx Virtex-4

41k

16 TTL and 22 RS485

56 LVCMOS plus 4 LVDS or 32 LVDS

IO324

Xilinx Virtex-4

41k

30 LVDS

56 LVCMOS plus 4 LVDS or 32 LVDS

IO325

Xilinx Virtex-4

41k

2 16-bit 105MHz A/D signals

56 LVCMOS plus 4 LVDS or 32 LVDS

By default (in price included) Speedgoat implements the following set of FPGA Code Modules for the IO301-IO324: 3 x PWM, 3 x CAP, 3 x QAD, 1 x Interrupt, and 1 x Inversors. The remaining I/O lines provide support for generic digital inputs or outputs.

Other configuration as well as FPGA-based protocols or algorithmic designs can be implemented on request.

Use Cases

A frequent use case of configurable FPGA-based I/O modules is the provision of generic and more special pulse train functionality such as PWM, capture, quadrature decoding, and generic digital I/O. This functionality is available to engineers either as an option configured by Speedgoat or for advanced users as configurable code modules.

The majority of configurable FPGA I/O modules provide digital I/O lines, but Speedgoat also covers configurable FPGA I/O modules with analog frontends providing very fast A/D and D/A I/O together with digital I/O e.g to form high speed inner current control loop for motion control applications.

FPGA implementation services

Speedgoat designs FPGA code modules and implements algorithmic subsystems to a broad range of configurable FPGA I/O modules with Virtex Xilinx chip according to your requirements.

 

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