we have some GPS chips form GlobalTop on our boards, that do not send NMEA messages in text mode.
The response to $PMTK605 is
The messages that are received seem to be binary. But they start with 0xde 0xae in contrast to the binary mode description in “AirPrime GMM-G3, XA11xx and XM11xx Software User Guide Rev 3”. In “Software User Guide AirPrime XM/XA Series” there is no reference of the binary format.
Can someone help me to decode this format?
Trying to change the sentence type with
does not help.
The initial baud rate is 115200.
Is there somebody able to help me?