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GPX-1 Quick Start Guide

GPX-1

Basic Configuration

Note

When the GPX-1 is paired with an IMX-5, the IMX-5 will configure the GPX-1 automatically based on the configuration of the IMX-5. No further action is required.

The GPX-1 should be connected to a host via a communications port: USB, UART, or SPI.

The configuration settings found in DID_GPX_FLASH_CONFIG are used to configure the various features of the device. These can be modified directly to the appropriate values using either the EvalTool, the CLTool, or the SDK.

Configure the antenna offsets. This can be done easily in the EvalTool by going to the Data Sets Tab and selecting DID_GPX_FLASH_CONFIG. The values of each field can then be edited. Modify the following fields after identifying the antenna positions:

  1. gps1AntOffset[X-Z] - Position offset of sensor frame with respect to GPS1 antenna.

  2. gps2AntOffset[X-Z] - Position offset of sensor frame with respect to GPS2 antenna.

GNSS data sets can then be requested by one of several methods:

  1. Requesting NMEA data using the ASCE command. There is a convenient tool in the lower left corner of the Data Logs tab of the EvalTool.

  2. Request data using the SDK commands: SDK Function

  3. Use the EvalTool to modify the value of DID_GPX_RMC.bits as outlined in the SDK.