LC29HAA ANT_ON level


How do I get the pin ANT_ON to go down on the LC29HAA module?

With the message “003 PAIR_GNSS_SUBSYS_POWER_OFF”, the power consumption drops but the level ANT_ON pin stays high.

The documentation says “The pin outputs high level signal in the Continuous mode and low level signal in the Backup mode.”. How do I activate the backup mode?


Hi Allec,

Two method to enter backup mode:

  1. Enter backup mode: Hold V_BCKP, and turn off VCC. It is the most simplest way to control.
    Exit backup mode: Restore VCC

  2. Send PAIR650 to enter backup mode. By this way, you can set pericodical backup mode.

Best regards.