(added subject tag)

Fritz wrote:

>I am currently planning to migrate from Pic Basic to Pic C. I understand
>,from what I've read so far that this will require a totally different mind
>set ( treatment of subroutines , goto's etc). Can anyone recommend reading
>material that will help in this change.
>
>I don't know if I've got a mental block or not, but after years of assembler
>and Basic I'm viewing this as a traumatic experience. Maybe I'm wrong.

Indeed -- I've found that switching from one programming language to
another (in my case, Assembly to C) on a processor whose hardware I'm
intimately familiar with can be particularly vexing. I remember
thinking "I know how to do a jump table in Assembly on the Z180, but
what on earth does it look like in C?" and similar issues.

I've always found cope snippets and examples in the new language to
be the most useful tool when making this migration.

There's a wealth of C-specific stuff out there. One place to look is
your compiler -- if it includes sources (*.c) for the library
functions, or examples of code, they might be very useful.  For
example, bit-banged serial comms (with bit shifts, loops, delays,
etc.) address many "how-to" issues. I looked at the sample that came
with my compiler and adapted it for my own use. In the process I
learned how to do shifts, delays, etc. in C.

On our website, the Salvo User Manual and several of the App Notes
have real-world C code examples (not just Salvo-specific) you may
find useful. There are plenty of other sites you can reach via
PICList.com, the PIC WebRing, and the compiler vendors.

Regards,
--

  ______________________________________
Andrew E. Kalman, Ph.D.


Salvo(TM), The RTOS that runs in tiny places(TM)
Pumpkin, Inc.
750 Naples Street
San Francisco, CA 94112
tel: (415) 584-6360
fax: (415) 585-7948
web: http://www.pumpkininc.com
email: aek@pumpkininc.com

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