Revisions Affected

IWR6843AOPES1.0, ES2.0

Description:

The local heating in the digital circuitry can cause the readings from digital temperature sensor to differ from that of the analog temperature sensors (Tx, Rx, and PM).

Implication: The temperature monitor API computes the maximum temperature difference across different sensors and compares against the programmed threshold (TEMP_DIFF_THRESH). Higher difference between analog and digital temperature sensors can cause the monitor to fail.

Workaround(s):

In temperature monitor configuration API (AWR_MONITOR_TEMPERATURE_CONF_SB), if the thresholds for the digital temperature sensors (DIG_TEMP_THRESH_MIN and DIG_TEMP_THRESH_MAX) are both set to zero, the BSS will ignore the digital sensor while computing the temperature difference across sensors to compare against the programmed threshold value (TEMP_DIFF_THRESH).

The digital temperature values (verbose output) from the API need to be validated externally by the processor.