EM9190 Resting com port all the time

almost every time i get a $PSTIS message the com port get reset and i have to reopen it. is there a way to turn this feature off.

Can you disable the gps port?

I don’t to disable the port i want to read from the port without interruptions.

have you tried to configure AT!GPSNMEASENTENCE?

I have not tried any at commands because i don’t know which ones would help. is there a command to turn off this message and the effects of this message.

I don’t know as this is an very old module.
You can try to configure this AT command and see if there is any improvement.

Oh no. i put the wrong device in. its an EM9 series device.

EM9190 to be specific. Sorry.

which firmware version are you using?

Are you using AT!GPSTRACK instead of AT!GPSFIX command?

BTW, are you testing in Windows or Linux?

I’m getting the firmware version.
we are not setting GPSTRACK OR GPSFIX so which is the defualt and which one doesn’t cause my issue.

This is all on windows 11.

I don’t see such problem with EM9191 on FW 03.14.10.1

how to reproduce the issue?

we have a program that reads the comport and sends the data to a server. We run this on CF20’s CF30’s CF31’s with no problems. but the FZ G2 with this chipset is causing exceptions when reading the comport. It appears to happen when the $PSTIS comes in. So i have to close and reopen the comport.
Is this normal that when i get $PSTIS is should close down the comport and reopen it?

Still trying to get the firmware version.

I don’t have one of these. Its at a customer site.

What program is used to open the port?
Have you tried with tera term?

Still don’t know how to reproduce the issue …

still trying to get the firmware. do you know how to query the device for the firmware version.

Use tera term to open the modem port and type ati3

we don’t see a modem port. we are using windows 11. there is no section under device manager for modem.

are we missing a driver??

Then did you install the usb driver?
Strange that you have com port for nmea frame, but there is no modem port

the ME9190 devices, depending on the drivers you have, will not show the “modem” device and it’s port is locked. You can try :

  • Extracting your drivers installation package, and modify the configuration.in by adding “EnableUDE=1” and reinstall your drivers.
  • If with that mod your EM9190 still only shows Virtual NMEA port and Network card, then you will have to contact your hardware provider and ask him for a driver that shows and unlocks the modem port.

You may also see this.
This user adds usbcomp in configuration.ini to enable the AT port