Cold, Hot, Warm Start Commands not receiving on L89

IoT Modules GNSS Module
1

Hello,
I am using Quectel L89H module. The problem Im facing is that during its initialization, all commands are being acknowledged by the module except for cold, warm and hot start configuration. I have increased the delay between sending commands for this but still not luck. I always receive $PAIR001,00(4/5/6),2*3C. Rest all work fine, Its just for the cold, warm and hot start.

Ive attached the responses from the L89 for the same. please let me know if you need anything else. Thank you.

$PAIR001,003,1*39

$PAIR001,003,0*38

$PAIR001,005,2*3C

$PQTMCFGANTENNAOK*01

$PAIR001,070,0*3C

$PAIR001,410,0*3E

$PAIR001,066,0*3B

$PAIR001,062,0*3F

$PAIR001,062,0*3F

$PAIR001,062,0*3F

$PAIR001,062,0*3F

$PAIR001,062,0*3F

$PAIR001,062,0*3F

$PAIR001,062,0*3F

$PAIR001,062,0*3F

$PAIR001,062,0*3F

$PAIR001,864,0*31

$PAIR001,513,0*3C

$PAIR001,002,1*38

2

Hi Rohan

Please refer to the L89_protocol_specification. About these three commands, as follow

image
image972×143 10.3 KB

Best regards

3

Hi Jasper,

It worked. Turns out unlike all the other configuration, I cant enable cold, hot and warm start after turning off the GNSS module via PAIR003 command. So I just configured it before sending PAIR003 and it worked.

Thanks!