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Programming the WISP
Running the Reader
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Wisp 4.1 DL (Hardware)
WISP Firmware Info
RFID Verilog Code
Impinj Reader (Browser)
Impinj Reader (LLRP)
SVN Repository Access
Passive Data Logger
WISP 4.0 DL
Gen 1 Hardware
VB.NET Reader App
VB6 Reader App
Impinj Reader (SDK)
HW Feature Set
Adding A Sensor
Using the EEPROM
Sending Data to WISP
Gen2 Physical Layer
Gen2 Link Layer
RF FE Measurement
This section should help you get started as quickly as possible. First take a look at the system overview. Then check that you have the required hardware and software. Next, run through the tutorial on programming your WISP. Finally, there's a quick tutorial on using the reader.
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What the setup looks like (HW/FW/SW)
Required Hardware and How to Obtain It
WISP 4.1DL Hardware: Apply to
Texas Instruments USB FET vs. USB Key
USB FET Debugger
(programmable voltage, $99, requres JTAG adapter board)
Note 50% off for universities:
USB Key Debugger
(fixed 3.3V, $20, direct connect to WISP)
For FET Debugger: WISP programming adapter (comes with WISP)
RFID Reader, Antenna
Required Software and How to Obtain It
A Git client. You'll need this to get the WISP firmware and reader application software.
Git instructions are listed on the
Getting Firmware Instructions Page
Current WISP firmware. The current WISP firmware status is on the
A compiler/debugger to compile and install firmware on the WISP.
We use IAR.
IAR Embedded Workbench
A free 'kickstart' edition (4KB max) is available from TI at
The full version is 80% off:
TI Code Composer (Eclipse-based)
A free edition (16KB maximum) is available at
We are having some issues with the project options - they need to be specified as a command line directive
This should work (used for TinyOS MSP430), but we don't know much about this route.
WISP C# GUI App. Go to the
page and follow the directions to get the latest version.
GUI App Microsoft Dependency Options:
Option A: Download Runtime Libraries
.NET 2.0 Libraries
Get Visual Studio 2005
Express Edition could be free, however this route is untested.
I can confirm the GUI app works with MS Visual C# 2005 Express - jvoris
Visual Studio is free for Universities:
Buy 2008 (~$250)
Should be embedded in the GUI App project
Latest version available here:
Suggested Tools For Developers
WISP Monitor (pending release)
Power Supply, Oscilloscope, Signal Generator
ITW Chemtronics / Circuitworks Flux Dispensing Pen CW8400,
ITW Chemtronics Chem-Wik Solder Braid Size 0.030
Wiha Fine Point Tweezers,
Paladin Datashark Wire Stripper/Cutter 30-20AWG,
They have a nicer model for $15 - as anyone tried them? Digikey
Cooper Industries/Xcelite 170M, Digikey
28 Gauge Wire
OK Industries R28* Wire Wrap
, K390, K391, K392, K393
Once you have everything ready, there's two tutorials below to get things running:
Programming WISP Tutorial
Running the Reader Tutorial
help on how to format text
Turn off "Getting Started"