2.9.1.11 - Period Measurement (16-Bit, Modes 12 & 13)
Similar to the 32-bit edge-to-edge timing modes described above (modes 2 & 3), except that hardware capture registers are used to record the edge times. This limits the times to 16-bit values, but is accurate to the resolution of the clock, and not subject to any errors due to firmware processing delays.
Note that the minimum measurable period is limited by the edge rate limit discussed in Section 2.9.2.
tags:
DAQ Devices
- UD Series (U3, U6, UE9)
- U3
- Start with the UD Driver
- User's Guide
- 1 - Installation on Windows
- 2 - Hardware Description
- 2.1 - USB
- 2.2 - Status LED
- 2.3 - GND and SGND
- 2.4 - VS
- 2.5 - Flexible I/O (FIO/EIO)
- 2.6 - AIN
- 2.7 - DAC
- 2.8 - Digital I/O
- 2.9 - Timers/Counters
- 2.9.1 - Timer Mode Descriptions
- 2.9.1.1 - PWM Output (16-Bit, Mode 0)
- 2.9.1.2 - PWM Output (8-Bit, Mode 1)
- 2.9.1.3 - Period Measurement (32-Bit, Modes 2 & 3)
- 2.9.1.4 - Duty Cycle Measurement (Mode 4)
- 2.9.1.5 - Firmware Counter Input (Mode 5)
- 2.9.1.6 - Firmware Counter Input With Debounce (Mode 6)
- 2.9.1.7 - Frequency Output (Mode 7)
- 2.9.1.8 - Quadrature Input (Mode 8)
- 2.9.1.9 - Timer Stop Input (Mode 9)
- 2.9.1.10 - System Timer Low/High Read (Modes 10 & 11)
- 2.9.1.11 - Period Measurement (16-Bit, Modes 12 & 13)
- 2.9.1.12 - Line-to-Line (Mode 14)
- 2.9.2 - Timer Operation/Performance Notes
- 2.9.1 - Timer Mode Descriptions
- 2.10 - SPC (… and SCL/SDA/SCA)
- 2.11 - DB15
- 2.12 - U3-OEM
- 2.13 - Hardware Revision Notes
- 3 - Operation
- 4 - LabJackUD High-Level Driver
- 5 - Low-level Function Reference
- Appendix A - Specifications
- Appendix B - Enclosure and PCB Drawings
- Frequency List for U3 Timer Mode 7
- UD Driver for Windows with U3 Quick Reference
- U3 Base Class for the Exodriver
- U3 Firmware Revision History
- U6
- UE9
- Software Options
- U3
- U12
- T Series
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