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A2B Bus Monitor Level 1 Application

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Product Description

Please note, this is an application that requires installation on the Promira™ Serial Platform.

Total Phase’s A2B Bus Monitor - Level 1 Application provides unprecedented access to the A2B system. By attaching the A2B Adapter Board in-line between A2B nodes, the A2B monitor can non-intrusively sniff A2B data on the line, giving users a real-time view into A2B traffic on the bus. A2B superframes are decoded and disassembled into I2S/TDM audio data and I2C control data for easy debugging. Additionally, full reporting on Interrupts and GPIO handshakes are correlated into the data capture.

The A2B Bus Monitor - Level 1 Application provides multiple ways of viewing the (A2B) data. Besides the traditional Bus Data view, the application also offers a Node Topology view and an Audio Channels view. The Node Topology view allows quick visualization of all nodes on the (A2B) bus. Users can display and export all node configuration settings to validate node initialization.

The Audio Channels view allows users to diagnose audio channel problems. Real-time audio levels for all upstream and downstream channels are displayed and audio for multiple upstream or downstream channels can be mixed and monitored simultaneously to quickly identify I2S/TDM data slot mismatch problems. Audio data can be exported to a file for further analysis using audio analysis software.

The A2B Bus Monitor - Level 1 Application requires the Promira® Serial Platform and takes advantage of its high performance serial data communications over USB or Ethernet. Data capture and analysis happens on the device, which allows for remote data capture and later review. The A2B Bus Monitor - Level 1 Application is a compact solution excellent for bench top prototyping and in-vehicle field testing.

The Data Sheet for the A2B Bus Monitor can be download from this link.

The purchase of your A2B Bus Monitor Application includes one year of support, allowing you to download any updates for this application for 12 months after purchase.

Detailed technical information about the Promira Serial Platform and A2B Bus Monitor Application can be found in the following:

Key Features

A2B Bus Monitor - Level 1 Application

  • Real-time capture of A2B bus data
  • A2B superframe decoding
  • Node discovery and initialization tracking
  • Node topology and configuration view
  • Monitor I2C data
  • Monitor GPIO signaling  
  • Monitor Interrupt events
  • Monitor TDM/I2S audio data
    • up to 14 channels upstream
    • up to 14 channels downstream  
  • A2B superframe error decoding
  • Live upstream and downstream audio levels
  • Play multi-channel live audio simultaneously
  • Export multi-channel audio to WAV


Web-based interface

  • No software installation required
  • Windows, Linux, Mac OS X support 
  • Works on tablets and mobile devices


Built on Promira Serial Platform

  • Easy software upgrades
  • Product extensibility
  • Ethernet/USB connectivity
  • Remotely accessible



  • Web socket API for platform/language agnostic integration
  • Easy integration into test and validation systems


What’s Included

  • (1) A2B Bus Monitor - Level 1 Application
  • (1) A2B Adapter Board
  • (1) 34-pin: 34-pin Header Cable 40 mm
  • (2) A2B Test Cables 1 meter (Mini-50 to tinned ends)

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