Memories from 2005

Posted on 2006-11-29 22:15:22 EET.

During the weekend I got and watched the Rammstein Völkerball DVD (from the 2005 "Reise, Reise" tour), it brought back some nice memories from our trip to europe on the same year.

I also got yesterday a Telit GM862-GPS module, breakout board (and antennas) I had gotten earlier. This morning I had little time to look at it and managed to read GPS position and time data, and both send and receive SMS using the serial interface. Next I'll try to write a small proof-of-concept program to reply to incoming SMS with the GPS time to test the built-in Python interpreter.

Also on the electronics front I've been trying to get gcc-arm working on my OSX to make some improvements to the firmware for this datalogger, the problem is that the firmware is built with Rowley crossworks (while thankfully not Windows only, "tested on RedHat 9" does not exactly sound like the bleeding edge of Linux support) which doesn't use Makefiles. So I dug around a bit for an example of a Makefile and the standard header files for LPC21xx uCs and got the original firmware source to compile, however when I program the uC with that hex file it won't boot.

Now this may simply be because I made some stupid mistake while tweaking the Makefile I found, if you have experience in writing Makefiles for LPC21xx take take a look (extract that to the directory where you already have extracted the firmware found behind the datalogger link) and let me know what is my mistake.

GM862-GPS update: the command reference manual is very thorough, without thinking I let it print on my big printer (LJ 8000DN) and some 600 pages later I noticed that all the command tables (syntax, description, output and example for each) are listed in full for each flavour or version of the interface (older ones are selectable for backwards compatibly on newer HW revisions), even when there is absolutely no difference. To add insult to injuru I ran out of toner so the last 100 or so pages are hard to read, and of course they're the ones that contain the important info for the latest and greatest version of the interface...

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