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Most of the C code in this section is for Hi-Tech C and the FREE! MPLAB compatible PICC-Lite which is essentially the same, but supports only the 16x84 devices. It may be possible to use these routines in other C compilers.
Andy Kunz says:
As for working in C, you can probably do 99% of what you need to do in standard C code. Time-critical stuff should be in assembly (to prevent optimization problems), and compiler-specific stuff can be done with include files. (see "defs.h"). I use this all the time to test stuff on a PC, then drop it into the PIC and I can fully expect it will work "first time."
ACE is an interpreter (A C Emulator) which runs on the PIC family of microprocessors. The language is a subset of ANSI C and thus all programs can be compiled and run using any ANSI C compiler, the IO of the microprocessor being simulated by a special include file. The version for the PIC 16F84 provides 8 programmable IO ports plus one input port. Two of the programmable ports can be configured to provide standard RC servo outputs."
Anyone out there wanting to be a (serious) beta tester?
The list of devices (with only one device, I suppose it's not really a list) that PICC-Lite supports is woefully out of date.Microcontroller Limitations --------------- -------------------------------- All Baselines No Limitations 12F629 No Limitations 12F675 No Limitations 16C84 No Limitations 16F627 2 RAM banks supported 16F627A 2 RAM banks supported 16F684 1 RAM banks, 1K program memory supported 16F690 2 RAM banks, 2K program memory supported 16F84A No Limitations 16F877 2 RAM banks, 2K program memory supported 16F877A 2 RAM banks, 2K program memory supported 16F887 2 RAM banks, 2K program memory supported 16F917 2 RAM banks, 2K program memory supported
Regarding the notes on this page:
There is absolutely no reason to resort to the following (which is wrong anyway due to its lacking the 'volatile' qualifier):
#define PIN(x,y,z) static bit x @ ((unsigned)&y*8+z)
HI-TECH already provides definitions for PIC SFRs and SFR bits. It's much more straight forward and less error prone to simply use:
#define LED1 RA0
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