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OK, I get that (though it took a minute or two to work out that | is a bitwise OR). So in PBP how do I set a nibble ? There isn't a variable type for nibbles - just bits, byte and words unless i've missed something. But I suppose it doesn't really matter if I use a whole byte, if the high nibble is all zeros the OR will just keep whatever it found in the Read PORTB and AND operation.
So is it "better" programming to do it this way rather than just four consecutive single bit operations ?
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PBP doesn't have a nibble variable type. But like you say, just use a byte with only the low nibble doing things.
Doing 4 bit writes to a single port one after the other, is actually doing 4 full port R-M-W's
If there's no capacitance, it'll be fine.
But if there is. You may have problems.
The method above is only 1 R-M-W at a time.
<br>
DT
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No 'nybble' variable types in PBP. You have to break a byte up into smaller pieces then reassemble it.
As far as 'better' programming...I think the operative phrase here might be that it's 'more reliable' programming.
(DT - wow!I'm leaving now!)
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Is there really just one of you out there and you are two faces of a single evil genius
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No, I'm the evil, he's the genius....Originally Posted by AndrewC
Is there really just one of you out there and you are two faces of a single evil genius
Or is he.........
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I had "Who's Online" in one window, and my reply in another.
Boy was I scrambling to beat you.
<br>
DT
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