7 years, 10 months ago.

Issue with CSRG0530B01-ICKD-R GPS chip

Hi, I'm working on the CSRG0530B01-ICKD-R GPS chip since few days. Currently, I'm able to initialize the chip and I receive NMEA strings by the Uart port on the chip. But these strings are empty. It looks like this:

$GLGSV,1,1_{,,,0.0*4B $GNRMC}V_,,N*4D $GPGGA_,,0,00_,M,0.0,M0000*48 $GNGNS_,,NN,00_,0.00000*7D $GNGSA,A,1_,,,*00 $GNRMC_{V,,N*4D $GPGGA0,00},M,0.0,M_{0000*48 $GNGNSNN,00},0.0_{0000*7D $GNGSA,A,1,,,*00 $GNRMC}V_,,N*4D $GPGGA_,,0,00_,M,0.0,M0000*48 $GNGNS_,,NN,00_,0.00000*7D $GNGSA,A,1_,,,*00 $GNRMC_{V,,N*4D $GPGGA0,00},M,0.0,M_{0000*48 $GNGNSNN,00},0.0_{0000*7D $GNGSA,A,1,,,*00 $GNRMC}V_,,N*4D $GPGGA_,,0,00_,M,0.0,M0000*48 $GPGSV,8,1,32,01,00,000_02,00,00003,00,000_{04,00,000,*75 $GPGSV,8,2,32,05,00,000}06,00,000_07,00,00008,00,000,*7E $GPGSV,8,3,32,09,00,000_10,00,00011,00,000_{12,00,000,*78 $GPGSV,8,4,32,13,00,000}14,00,000_15,00,00016,00,000,*70 $GPGSV,8,5,32,17,00,000_18,00,00019,00,000_{20,00,000,*70 $GPGSV,8,6,32,21,00,000}22,00,000_23,00,00024,00,000,*72 $GPGSV,8,7,32,25,00,000_26,00,00027,00,000_{28,00,000,*7B $GPGSV,8,8,32,29,00,000}30,00,000_31,00,00032,00,000,*73

I tested with an android app and I track enough satellite where I test my board. No external LNA is used on the board, so the GPIO [8] is pulled high. Do I have to enter any configuration on OSP or the chip should have been work right out of the box?

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