--work-properly

[reading: Jean Hugard & Frederick Braue, "The Royal Road to Card Magic (revised edition)"; recently Henning Nelms, "Magic and Showmanship: A Handbook for Conjurers"]

Today's --work-properly option: adding -rdynamic (a.k.a. --export-dynamic) to a GCC link line will mean that any dlopened libraries are able to bind to the symbols in the running executable.

Remote Reset

[reading: Neil Gaiman, "Eternals"]

Someone at work was complaining the other week about the difficulties of testing with the OSE board. The board needs to have the reset button pressed after each test, and the problem was that the board lives in the machine room at the other end of the building.

I remembered that I had an old Lego Mindstorms set rotting in the cellar, so I decided to help out:

One of the motors had died in the meanwhile, but a contraption to press a button only needs a single motor. The software had rotted quite badly too—the old software that came with the set wouldn't work with XP, and there didn't seem to be any updates on the Lego website.

Open source to the rescue: the NQC compiler together with the Bricx IDE sorted out the 6 line program that I needed, and so remote reset was born.

hardware