Introduction to NFC Tester RWC5010A

Transcription

1 Introduction to NFC Tester RWC5010A RedwoodComm Contents Overview Key Features Test Setup GUI Architecture Test Jig Automated PC Software Demo 2

2 Overview RWC5010A NFC Tester A test equipment to test NFC Forum Devices specified in NFC Forum Technical Specifications. Provides very convenient working environment with full control over all system parameters. Supports various kinds of functions such as power vs. time measurement, link analyzer and modulation characteristic measurement. FDT and GT are measured in real time with Link analyzer. Provides sensitivity test with variable VDC and load modulation amplitude 3 Key Features Protocol supported LISTEN Test, POLL Test, and SNIFF Mode Digital Protocol: NFC-A, NFC-B, NFC-F, NFC-DEP, ISO-DEP All types of NFC tags supported: Type 1, 2, 3 and 4 User-controllable ASK modulation index Link Analyzer Protocol Message logger and analyzer Link timing measurement (GT/FDT/TR0) Tests & Measurements Graphical Power vs. Time (built-in oscilloscope) Modulation characteristic and load modulation measurements Sensitivity Tests Command-based Remote Control RJ45 and RS232C port 4

3 Tests & Measurements List Polling DUT Power CW ON/OFF power meas - Listening DUT Frequency Carrier Freq meas Freq tuning Link Timing GT, FDT, TR0 meas FDT, TR0 meas Modulation Sensitivity Rise time, fall time, overshoots (undershoots), modulation index meas Load modulation, Position Load modulation meas Power, Position 5 Specifications Frequency Range: 13.50MHz ~ 13.60MHz Resolution: 1kHz Accuracy: operating temperature Output Level Range: MAX. 50Ω Resolution: 1mV Accuracy: ±10mV 6

4 Test Setup LISTEN Test Calibration RX Reference Poller Antenna (0,3,6) RWC5010A TX Reference Listener Antenna (1,3,6) V DC Test & Measurement RX Reference Poller Antenna (0,3,6) RWC5010A TX Listening DUT 7 Test Setup POLL Test Calibration Measure RX Reference Listener Antenna (1,3,6) RWC5010A TX Reference Poller Antenna (0,3,6) Load Modulation CW using SG Test & Measurement RX Reference Listener Antenna (1,3,6) V DC RWC5010A TX Polling DUT 8

5 Test Setup SNIFF Mode Test & Measurement Listening DUT RX RWC5010A Polling DUT Reference Listener Antenna (1,3,6) 9 Pre-calibration VDC In LISTEN Test, the VDCcan be set directly with the pre-calibrated dataaccording to the reference Poller/Listener combinations, not by tuning TX level to reach its target value. Load Modulation In POLL Test, the load modulation amplitude can be set directly with the pre-calibrated dataaccording to the reference Listener, not by tuning TX level to reach its target value. 10

6 GUI Architecture MAIN MENU LISTEN TEST The Tester operates as a reference Polling Device POLL TEST The Tester operates as a reference Listening Device SNIFF The Tester sniffs the communication between two NFC devices GENERAL General-purpose SigGen and Pow-Time SETUP System configuration 11 Sub Menu LISTEN TEST LINK / POW-TIME / SENSITIVITY / CONFIG POLL TEST LINK / POW-TIME / MEASURE / CONFIG SNIFF LINK / POW-TIME GENERAL SG / POW-TIME SETUP SYSTEM / REMOTE 12

7 LISTEN TEST :: LINK Link Analyzer Protocol messages logging: P L and L P GT/FDT(TR0) measurement Unwanted messages filtering 13 Description on LINK Screen Current Protocol Main Menu title Link messages: Black (Tester signal) Blue (DUT signal) Byte-format cursor Status Indicator: RMT Remote enabled AGC AGC locked TRG Meas triggered CAP CAPs locked ETH Ethernet connected EXT External ref. detected F Function key enabled Run STATUS: RUNNING STOPPED Run MODE: SINGLE CONT PROTOCOL: NFC-A/B/F MSG CLR: Clear messages FILTER: Command mask Sub Menu FDT/GT : link timing (GT, FDT, TR0) CMD : commands and responses CONTENTS : information in commands and responses 14

8 LISTEN TEST :: POW-TIME Power-Time Measurement Measures Load modulation as Vpp Similar to use of oscilloscopes (Zoom, Markers, etc.) Running mode: Single or Continuous Command-selective measurement 15 Description on POW-TIME Screen Marker 2 (Blue): Solid if selected Dotted if not Load modulation (Vpeak-to-peak) Hardware KEYs: Zoom In Zoom Out Zoom Full Zoom area indicator Max/Min values of window Marker 1 (Red): Solid if selected Dotted if not Values on Marker 1 Delta Marker Values on Marker 2 Horizontal/ Vertical DIV Run STATUS: RUNNING STOPPED Run MODE: SINGLE CONT PROTOCOL: NFC-A/B/F SYNC: Select Target CMD (ALL, SENS, SDD, ) TIMESPAN: 0~38ms DISPLAY: OFF / RESULT / MSG / BOTH SCALE: AUTO/MANUAL 16

9 LISTEN TEST :: SENSITIVITY Receiver Sensitivity Test Validates responsiveness of a Listening DUT User-configurable X-axis: LEVEL (VDC) or TIME Load modulation measurement when response exists Various test conditions: position on Test Jig, VDC level, modulation index 17 Description on SENSITIVITY Screen Run STATUS: RUNNING, STOPPED X_AXIS: VDC, TIME REPEAT: Number of try DISPLAY: BOTH / SENS / LOAD VDC RANGE: START, STOP, STEP VDC TYPE: NOMINAL, MIN, MAX, USER VDC: VDC value in Volt 18

10 LISTEN TEST :: CONFIG Parameter Configuration Digital Protocol Analog 19 POLL TEST :: LINK Link Analyzer Protocol messages logging: P L and L P GT/FDT(TR0) measurement Unwanted messages filtering 20

11 POLL TEST :: POW-TIME Power-Time Measurement Similar to use of oscilloscopes (Zoom, Markers, etc.) Running mode: Single or Continuous Command-selective measurement Measurement index view for modulation characteristic 21 POLL TEST :: MEASURE Modulation Characteristic Select a command as measurement target Timing measurement according to the Spec Power and Carrier Frequency measurement Automatic calculation of UL and LL for each 22

12 Description on MEASURE Screen CW ON Power CW OFF Power Carrier frequency Modulation characteristic measurements depending on protocol Run STATUS: RUNNING STOPPED Run MODE: SINGLE CONT PROTOCOL: NFC-A/B/F SYNC: Select Target CMD (ALL, SENS, SDD, ) RESET: Reset Tester status Measured values: Blue if passed Red if failed Lower/upper limits according to the Spec. 23 POLL TEST :: SENSITIVITY Load Modulation Sensitivity Load modulation amplitude is pre-calibrated according to the combination of reference antenna Various test conditions: Position on Test Jig Load modulation amplitude 24

13 POLL TEST :: CONFIG Parameter Configuration Digital Protocol Analog 25 SNIFF :: LINK Link Analyzer Captures protocol messages between two NFC devices as sniffer GT/FDT(TR0) measurement Ready to receive all type of NFC protocol (A/B/F) 26

14 SNIFF :: POW-TIME Power-Time Measurement Similar to use of oscilloscopes (Zoom, Markers, etc.) Running mode: Single or Continuous Command-selective measurement 27 Test Jig 28

15 Automated PC Software 29 Demo 30