Problem combining GPS and RF messages
Posted: Mon Jul 13, 2015 5:58 am
Im having some problems with my TD1204 module.
I want to constantly send RF messages that contain location information, so im using the AT$GPS commands for getting the location information an then sending it with the AT$SF command, with some other additional info. These are the stepts I am following
I get the location info using “AT$$GPS=1,16,0,65535,2,1” and when the RMC frame has a fix value, put it in backup mode with “AT$GPS=2”.
Then I send a message with AT$SF
(The module is ON all the time)
The problem comes when I call again to the “AT$$GPS=1,16,0,65535,2,1” command, intead of getting an OK and start to see the NMEa frames, the module always restarts (I get a ^SYSSTART). That supposes a problem because I want to keep the GPS on backup mode so the fix time is the minimum possible.
Why is this happening?
Regards,
I want to constantly send RF messages that contain location information, so im using the AT$GPS commands for getting the location information an then sending it with the AT$SF command, with some other additional info. These are the stepts I am following
I get the location info using “AT$$GPS=1,16,0,65535,2,1” and when the RMC frame has a fix value, put it in backup mode with “AT$GPS=2”.
Then I send a message with AT$SF
(The module is ON all the time)
The problem comes when I call again to the “AT$$GPS=1,16,0,65535,2,1” command, intead of getting an OK and start to see the NMEa frames, the module always restarts (I get a ^SYSSTART). That supposes a problem because I want to keep the GPS on backup mode so the fix time is the minimum possible.
Why is this happening?
Regards,