The Data Capture tab reports the temperature from the TMP4719 device included on the TMP4719EVM. By default, once the EVM is connected and the GUI is loaded and running properly, the device starts in continuous conversion mode and the MCU starts polling the device. The conversion results are automatically reported and displayed in the Data tab graph.

On the right side of this tab, the user can view the latest temperature read values. There is also a Data Controls box which allows the user to:

• Set the polling rate. Once a value is selected from the dropdown, the MCU automatically starts reading the TMP4719 at the set polling rate.
• Write the TMP4719 Conversion Period setting using the Device Rate field. Once a value is selected from the dropdown, the MCU automatically writes to the TMP4719, which then starts converting at the programmed rate.
• Start and stop logging the data read to export to CSV format for temperature monitoring. The user must start polling by clicking the Start button and the data (CSV) automatically exports once the stop button is clicked.

The Alert Limit Settings box allows the user to easily configure the Alert and TCRIT limits for the local sensor and remote sensors. The limits can be written in decimal format, and the corresponding hexadecimal value is automatically displayed to the right for reference. Once selected or updated, all of the settings are written automatically to the TMP4719 by the MCU.

There are also buttons to easily trigger a General Call Reset or a One Shot temperature measurement. Note that to trigger a One Shot, the device must be in Shutdown mode. Set the appropriate device mode by writing to the CONFIG register (Mode[6] bit).

Figure 3-4 Data Capture