Difference between revisions of "SIM868 Debug"

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Line 2: Line 2:
 
  AT+CGNSINF
 
  AT+CGNSINF
 
  +CGNSINF: 0,,,,,,,,,,,,,,,,,,,,
 
  +CGNSINF: 0,,,,,,,,,,,,,,,,,,,,
* This is a problem of the latest simcom firmware
+
* This is a problem of the latest simcom firmware, it does not happened in old modules, but in new modules.
 
* The GNSS output port baudrate at 9600, but UART2 baudrate is not at 9600 by default, these two should be set to match
 
* The GNSS output port baudrate at 9600, but UART2 baudrate is not at 9600 by default, these two should be set to match
  

Latest revision as of 00:35, 2 August 2021

Problem: Can not correctly receive the GNSS output

AT+CGNSINF
+CGNSINF: 0,,,,,,,,,,,,,,,,,,,,
  • This is a problem of the latest simcom firmware, it does not happened in old modules, but in new modules.
  • The GNSS output port baudrate at 9600, but UART2 baudrate is not at 9600 by default, these two should be set to match



Solve:

  • Set the correct baudrate for UART2 before to receive GPS data
  • by commands AT+CGNSIPR=9600


  • We tested all units before send, but the commands data maybe not saved into module, we are still looking for better solutions?