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January 5, 2009
about 8 years ago
Oy. Didn’t notice that the Terminal command to start screen also got mangled. It should be:
screen -L [your /dev entry] 57600
Replacing “[your /dev entry]” with your actual dev entry.
Sheesh. Where’s the “edit” button for these comments?!?!
Yup, that did it. “\015\012” gets converted to the CRLF sequence
Ugh. The page mangled my post despite the “preview” displaying correctly. Let’s try this again:
The sample sequence should be:
Took me a while to figure out how to configure this with OS X, so I figured I’d document the process here for quick reference for anyone else needing the information
-Open Terminal (/Applications/Utilities)
-If you don’t know the /dev entry for your serial communication device, with it disconnected type “ls /dev/tty."
-Now connect your serial communication device, and enter the previous command again
-The /dev entry for your device should be the only new entry
-With your serial device connected to your computer and GPS module, type this line in Terminal (replacing ”“ with the real /dev entry):
screen -L 57600
-The hard part for me was sending the CRLF sequence after each sentence. The best way I found to send this sequence is to use screen’s command line mode by pressing ctrl+a, and then : (colon)
-Enter your sequence using the following format (obviously replacing ”$PMTK00032" with the appropriate sequence. The “$” character needs to be escaped and the “\015\012” sequence will be converted to the CRLF sequence):
-Then just press return to send the sentence
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