On 19/10/2011 11:05, IVP wrote:
> I started a major SMS project some years ago using a 16F877 and
> quickly realised that was a bad choice. An 18F was faster, had a
> better instruction set (which also greatly improved speed), and had a
> better architecture. I could have done it with the 16F but would have
> got a poorer result for more time spent, and it would have been a
> nightmare to maintain
>
> Joe
>

18F is better. I hope you were not trying to manipulate strings in=20
Assembler.

I have a bunch of JAL string functions I used for 16F877 and 18F4550 CAT=20
control. I ran out of program space on the 16F as I was plotting=20
bargraphs, doing a GUI etc on a GLCD and a bunch of other stuff like=20
tone decoding and generation. I even added RDS decoder with HW assistance.

Speed?

SMS has no prioritisation, It uses spare overhead on the system. It's=20
not real time.

Speed isn't important.
--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.