[sdcc-devel] Adding in BRG16 to pic16 library for USART

[Peter S. <pet...@in...>]

Guys (and gals?),

I would like to modify the PIC16 usart function(s) to ease the use of
the BRG16 bit.  I thought up a few ways to do this:

	1. Move all the baud rate determining code to a new baud rate function
	2. Add the BRG16 enable/disable to the 5 of the "config" parameter

In either case I would have to provide a way to disable this
functionality for PIC16's that do not seem to have the BRG16 bit in
their include files.  I could:

	A. Add a #define such as "#define HAS_BRG16" to the applicable
pic18fxx.h files 
	   and enclose BRG16 specific code in #ifdef HAS_BRG16 ... #endif
	B. Add a #define such as in pic16F688.h for the bits to the applicable
pic18fxx.h files 
	   and enclose BRG16 specific code in #ifdef BRG16 ... #endif

I would like to discuss/agree on a solution, make the changes on my
sdcc-2.7.4 build setup, do some tests on my 18F2455, and submit the
diffs for someone to merge.  Please give me your thoughts on this
issue...

-- 
Peter Stephens
pet...@in...