Total Newbie Just Need a Push in The Right Direction

nickelflippr said:

Jon Wilder, be80be:

Thanks for confirming the BNC etc. mnemonics for the 10/12 bit families, and also for the pdf. Should have known, I actually use #define, and ifdef a lot. My apologies for being lazy this morning.

I use Crimson Editor with Basic, and have previously downloaded and looked at notepad++, can't remember why I didn't go with it. I will occasionally use MPLAB, mostly for interrogating .asm files with the simulator, and stopwatch.

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Jon Wilder said:

I just recently discovered #define and I use it quite a lot myself now. Makes it so that I can write my code and name the port I/O lines based on what load they're driving or what is driving the pin, which helps me to remember what's connected to each pin.

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#define ComCathode
...
...
...
	If red_duty > duty then
		#ifdef ComCathode
			red = 1
		else
			red = 0
		#endif
	else
		#ifdef ComCathode
			red = 0	
		else
			red = 1
		#endif
	end if

nickelflippr said:

Should have said that the #define and ifdef is an MPASM directive and not to be confused with mnemonics.

Aside from the better readability of using #define for port pins and/or pin values, they are useful in making procedures and functions more versatile. Say for instance, you have an RGB led, or 7seg display routine set up for common anode. It is easy to expand those routines for common cathode, simply by using the #define, ifdef, or ifndef.

Code:

#define ComCathode
...
...
...
	If red_duty > duty then
		#ifdef ComCathode
			red = 1
		else
			red = 0
		#endif
	else
		#ifdef ComCathode
			red = 0	
		else
			red = 1
		#endif
	end if

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Jon Wilder said:

And that's where you start getting into C, which I don't yet understand nor do I know where to start with it lol.

I find it interesting that some people find it more difficult to comprehend assembly than C, but to me for some reason assembly language/syntax actually makes more sense than C does. Probably cause I'm just not yet familiar with C constructs and syntax.

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