Charlie-plexing

[Boater]

Hi Demon and AvionicsMaster1
Thank you for the information.
I will try your suggestions though I think typing OR seems the easiest.
Regards
Jim

[richard]

I will try your suggestions though I think typing OR seems the easiest.

Though it looks cool to use those symbols I think it's easier just to type OR and know what it means

.


NOT sure about that , this is what the book says

3.4.2 Logical vs. Bitwise

Logical operators are very different than bitwise operators! There are

circumstances under which PBP will allow the use of logical operators in
expressions. This means that no error message will be generated when you
mistakenly use a logical operator in a bitwise calculation. Consider the following:
result = PORTB AND %00001111
' Returns logical result (1 or 0)
The above example will compile and give a result. The value of the result can only
be one or zero (true or false). If the intent is to use a bitwise operation to obtain a
binary result, you MUST USE BITWISE OPERATORS:

   i_term=0
   d_err=4
   i_err= 3 
   i_term= i_err |  d_err
   serout2 PORTA.0,84,[ "3 | 4 ",9,#i_term, 13,10]
   i_term= i_err OR d_err
   serout2 PORTA.0,84,[ "3 OR 4 ",9,#i_term, 13,10]

PRINTOUT:
3 | 4 7
3 OR 4 65535

[Boater]

Hi Richard
Looking at the PBP3 Compiler Manual it only shows OR as the description for
| in the Bitwise operators. It does show OR as an operator in the Logical operators.

Regards
Jim

[richard]

Logical operators are not bitwise operators
| does a bitwise OR
OR does a Logical OR

2 | 3 = 7
2 OR 3 = ! 0 [ not nothing ]

[AvionicsMaster1]

Yes I made a mistake. There is a difference between bitwise operations and logical operations. I vehemently apologize for the second part of my post.