EM7455 for GPS (GNSS) Only

[jyijyi]

You can connect modem port for AT commamd.
Nmea frame will be output in nmea port.
Please have a look here

MC7455 GPS not functioning

Set GPSLPM = 0 Otherwise, unless you have an active connection, the GPS will go into LPM “GPSLPM”—Enable/disable GPS in Low Power Mode. : • 0 = Enable—GPS engine remains enabled when modem enters LPM (Default) • 1 = Disable—GPS engine is disabled when modem enters LPM