GPS PMB 648 Only Updates Every 50 Meters
Hello,
I need some help with the PMB-648. I am using it with the Propeller chip. Initially it would only update if I walk a distance of approximately 50 meters. Then I read a thread here that discusses how to change the mode so that it will update at short distances. I attempted to follow the instructions and now all I get are zeros. i believe I may have set it to binary or raw mode? Now I am not sure how to fix it. I have tried a number of things to no avail and am not sure how to fix it?
Can anybody provide me with the code to reset the chip to NMEA output and also set it to "walking Mode" (The term that was used)? I am new to both the propeller and the GPS module so your help is greatly appreciated.
Thanks in advance.
I need some help with the PMB-648. I am using it with the Propeller chip. Initially it would only update if I walk a distance of approximately 50 meters. Then I read a thread here that discusses how to change the mode so that it will update at short distances. I attempted to follow the instructions and now all I get are zeros. i believe I may have set it to binary or raw mode? Now I am not sure how to fix it. I have tried a number of things to no avail and am not sure how to fix it?
Can anybody provide me with the code to reset the chip to NMEA output and also set it to "walking Mode" (The term that was used)? I am new to both the propeller and the GPS module so your help is greatly appreciated.
Thanks in advance.
Comments
Your '648 has RS232 I/O on its pins 5 (data out) and 6 (data in). So, if you connect GPS pin 5 to 9pin_serial pin 2, GPS pin 6 to 9pin_serial pin 3, and GPS pin 4 to 9pin_serial pin 5 [gnd], then you should be able to use the SiRF app (see attachment.) It should get you back to NMEA-ville.
Nobody from tech support seems to be reading posts these days, too busy pampering brats and coddling losers.
I'll ask the tech support crew (we have four of them now!) to actively participate in the forums. And in this case we clearly need to produce or update our documentation so we don't make our customers sleuth around for the right answers.
I've got just the person to answer this question: Daniel. He experienced the same problem at UPEW. Today is his first day at Parallax, too.
- Ken
I did need to figure out the proper checksum, which was quite a trick given I didn't know anything else about what I was doing. I don't know that I could repeat the feat. If the SirF (SiRF) software does it without requiring you to know what you're doing, you'll definitely want to go that way. :smilewinkgrin: