Panda data-acquisition and FPGA dev board

From OMAPpedia

Description

Amateur scientists and other home experimenters often have difficulty finding data-acquisition (DAQ) hardware meeting their needs at reasonable cost. PC sound-card I/O is sometimes adequate; otherwise, commercial DAQ offerings in the sub-$200 range are quite limited. (In my case, the immediate motivation for this project is data collection from a magnetometer observing solar-activity-induced disturbances in the Earth's magnetic field.)

The Pandaboard is ideal for this application because it is inexpensive, low-power, portable, runs Linux, and offers easy high-bandwidth expansion through the GPMC bus. I propose designing an expansion board with

• multiple 16-bit A/D and D/A channels
• extra digital I/O
• programmable logic for timer/counter functions and periodic sampling
• GPS for mobile data-logging, timestamping, and oscillator calibration
• McSPI and GPMC bus interfaces at the Pandaboard expansion connectors

A Xilinx Spartan-6 FPGA will bridge the various functions with the Pandaboard interfaces. The design will be modular, such that the A/D, D/A, and GPS can be omitted, resulting in a board very similar to Eric Brombaugh's Beagleboard Tracker. Thus, this project will serve double-duty as a Tracker refresh for the Pandaboard.

Progress

(The original target for working hardware was mid-June 2011.)

• (18 Mar) Initial pin assignments for FPGA and expansion connectors
• (28 Mar) Draft schematic
• (2 May) Final schematic
• (3 May) PCB layout started

Home page

Please visit http://www.keteu.org/~haunma/proj/pandadaq/ for design detail and documentation.

Contact information

haunmaketeuorg

Black Market Winner -- 3/14/11 - 3/18/11 event