Embedded Motion Control/Additional information

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Tips and tricks

  • When experimenting with the additional mars-rovers, the RCX from the experimental kit can be used to fulfil the role of the earth computer.
  • First make a sketch of the software architecture on paper before writing the actual code.
  • Make a clear distinction between the sample rates of the different software parts and thoroughly consider on which RCX they are implemented.
  • If operations fail, printing error code to the LCD can help to debug the program.
  • In order to compile the written C-programs into .lx-files, all C-code should be put into the directory where the Makefile is present, i.e. /brickos-0.9.0/marslander.
  • To prevent the system from crashing it is necessary to insert a stop thread in the program in which all other threads are killed.
  • Avoid the use of while(1), use while(!shutdown_requested()) instead.
  • Make sure that variables do not overflow, for example keep an integer smaller than 32767 (see [1, page 187])
  • The lake may not be visible when standing right in front of it.