NI I2C Digital Waveform (IDW) Library 1.1

NI I2C Digital Waveform (IDW) Library by National Instruments

The NI I2C Digital Waveform (IDW) Library is a LabVIEW library that streamlines the generation and acquisition of I2C protocol waveforms using NI digital waveform instruments. It provides ready-to-use, parameterizable building blocks for common I2C master operations, so you can create reliable stimulus/response patterns without writing low-level bit-toggling code.

Key capabilities

• Implements standard I2C master signaling, including START, repeated START, STOP, ACK/NACK, and byte-level read/write sequences.
• Lets you configure timing parameters such as SCL rate and signal setup/hold characteristics within the limits of your NI hardware.
• Works with NI digital waveform hardware and drivers to play back and capture I2C waveforms directly from LabVIEW.
• Includes example VIs and templates to accelerate tasks like register reads/writes, device bring-up, and automated functional test.
• Supports scripted, repeatable test sequences suitable for validation labs and production environments.

Typical use cases

• Characterizing and validating I2C peripherals and mixed-signal ICs
• Automating register access during board bring-up
• Creating reproducible protocol tests for manufacturing or regression testing

Notes

• Actual performance, voltage levels, and maximum bus speed depend on the specific NI instrument you use.
• The library is intended for active I2C master generation and response; passive bus analysis may require additional tools or configurations.

NI I2C Digital Waveform (IDW) Library is developed by National Instruments. The most popular version of this product among our users is 1.1.