Problem with managing or filtering data from UART using GR47 development board

[wrodrigo]

Hi friends,

I am developing an avl product with GPRS...

The module that I am testing with the development board is GR47, but the literature and the documentation is very poor.

The big challenge in this moment is get GPS NMEA string from uart3. I can receive the data, but can't manage or filter the data.

:arrow:For ex: My GPS sends GPGGA, GPRMC, GPGGL strings, and I have to get only GPRMC string...

With "normal" C language I did it using a LPC2138 but with the module's IDE I could't :!::!::!:

Anyone can help me or send me any example of uart code for this module ??

Thanks in advance...

Wellington
:idea:

 

[bobcat1]

Re: GR47 - UART PROBLEM

Hi


Are you trying to design an avl who works drectly with GR47 processor ?

If your answer is yes, you need the GR47 SDK thay use a semi C language who can be downloadded directly to the processor flash memory

From my point of experience - this method is not working well the best way is to use an external microcontroller like MSP430,LPC2103,PIC8720 etc

All the best

Bobi

 

[wrodrigo]

Re: GR47 - UART PROBLEM

Hi Bob,

After a lot of tests we concluded the same thing... The best way is to use an external microprocessor..

We are using now the MC39i from Siemens, and a PIC microprocessor, all the firmware is ok and tested...

Thank you for your reply

Best Regards

Wellington

 

[dalkan07]

Re: GR47 - UART PROBLEM

Hi friends,

Also my proplem is same as wrodrigo. I'm trying to filter data and get only GPRMC string.
But I must do this with using microcontroller such as PIC by coding in PicBasic. Do u think this is possible as we filter in PC programming? If it is possible can you help me for programming plz.