[Lazarus] Free-pascal question

[Michael Schnell]

On 03/07/2013 11:57 AM, Chavoux Luyt wrote:
>
> Although an OS will probably make things easier, low power consumption 
> will be the most (?) important requirement.

If power consumption is a very major issue, the best possible arch that 
somewhere is in reach is the PIC32 which in fact is a MIPS variant. I 
know that a MIPS implementation for the fpc compiler is being worked on.

>  - no GUI (for "headless" low-cost hardware)
> Yes! (If there is an OS, it might be possible to have a web interface 
> and embedded web server for settings etc., though).

While no-GUI projects are not too hard a problem, you need to consider, 
that the normal Delphi like "event driven" programming paradigm is not 
possible with the current Lazarus library (it is possible with the "mse" 
library, that is similar on other accounts.)
>
>      - cross compiling
>
> Yes, the development will be done on Linux (either fpc or c 
> cross-compiler) and written to the device using whatever 
> pins/connectors are available (probably USB and possibly wireless/UHF 
> - this will depend on hardware design)

While fpc officially does support Cross compiling, it is no especially 
easy to get it working (see the appropriate Wiki articles)
>
>      - remote debugging
>
> Will depend on the chipset and hardware design... can this be done 
> using fpc?
>

Lazarus uses gdb for debugging. If you don't use an OS (such as Linux) 
on the target, you can't use the GNU created gdb "receiver" (either gdb 
or gdbserver). I seem to remember that in this forum I read something 
about a standard protocol that allows to attach hardware debugger 
devices, that someone might be willing to implement into Lazarus.

-Michael
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