RS485-MOD2 33 Channels RS485/422 - PMC Front Panel Mezzanine Module


  • 33 Channels of EIA-485/422B
  • FPGA Firmware blocks supplied in VHDL for integration into user applications
  • Windows, VxWorks and Linux host PMC support

The RS485-MOD2 is a front panel mezzanine module designed to provide serial I/O functionality to VMETRO's FPGA-based processing PMC modules. This module provides 33 channels of EIA-485/422B serial I/O. The RS485-MOD2 is aimed at embedded application development.

The RS485-MOD2 is designed to be used with:

- PMC-FPGA05 A Virtex-5 LX110 FPGA based PMC
- DEV-FPGA05
 A Virtex-5 LX110 FPGA based PCI board
- PMC-FPGA03
A Virtex II Pro XC2VP50 FPGA based PMC

RS485/422
The RS485-MOD2 provides 33 channels of RS485 serial I/O; each channel can be configured as an input or output. Fully compliant onboard drivers allow either EIA-485 or EIA-422B to be supported. A single 68-way VHDCI (SCSI-5 style) connector provides access to the signals using a pin configuration that allows standard differential SCSI-5 cables to be used [only SCSI-5 cables fabricated with all 34 differential signals routed through twisted pairs should be used]. This simplifies use and minimizes cost. Serial protocols and timings are handled by the host FPGA.

Software
The RS485-MOD2 is hosted by the PMC-FPGA03, PMC-FPGA05 or DEV-FPGA05 which are supported under Windows XP, VxWorks and Linux (Contact VMETRO for availability). The RS485-MOD2 support package is additional to the BSP that accompanies VMETRO PMC modules and includes:

  • VHDL library code blocks: demonstrating how board resources can be used and how serial I/O operations are controlled by the host FPGA
  • Hardware and firmware/software manuals



Development of VHDL code for the FPGA requires synthesis tools such as Xilinx Foundation.

Last updated: Sep 28 2007, 01:59PM

33 Channels RS485/422 - PMC Front Panel Mezzanine Module

Click to enlarge