Begin rant {
I have been programming stuff since 1970 (IBM1130 in high school). I have
programmed well over 100 different machines in far more than that many
languages. You would be hard pressed to find a machine architecture/real
lanuage that I have not used. I also have an EE degree and have designed
several commercially available computers (and a couple of successful ones at
that).
I have done some pretty incredible things with PIC chips. I used them mainly
because of their very predictable execution time per instruction. Apps
included generating eight simultaneous channels of real time video syncs/time
code overlays, a 3DES encrypted full duplex audio radio with 32 channels of
PWM I/O and telemetry, the complete flight control system for an autonomous
aircraft, etc. One application replaced over 100 TTL/PAL packages with a
single 18 pin PIC. The TVB clock divider is a perfect application of a PIC
progammed in assembly language (use the Parallax syntax, not that horrid
Microchip babel).
That said, PICs are a sorry, miserable excuse for a microprocessor. Paged
memory is just so last millenium. It should have died an unlamented death in
the 60's. Compilers and programmers waste a huge amount of time and CPU cycles
fiddling with pages, etc. Same goes for the 8051's and their demon spawn. You
can gussy up a toad with all the lipstick in the world, and it's still a toad.
If you are going to program a micro in C, go with an AVR. They are not
perfect, but at least they don't croak.
End rant }
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