50% if that is the same as a half then right shifting the register will give
you 50% of what you had before.

Hope thats what you were after

Justin

-----Original Message-----
From: MATTHEWS, DEAN (D.) [mailto:dmatth14@FORD.COM]
Sent: Thursday, 21 February 2002 17:15
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [PIC]:working out percentages


Hello,

I am using a PIC16f877 and CCs compiler.  Is there a maths function that
will enable me to calculate 50% of an integer variable in a register and
store the answer in another variable, or would I calculate it myself.

Also is an integer 8 bit or 16 bit long.  some books say it is 8bit and
others 16 bit.

Dean Matthews
Reliability Engineering
Ford Engine Plant Bridgend
Waterton industrial estate
cf31 3pj
South Wales, U.K
Tel No: 0044(1656)672597
Fax No: 0044(1656)672558
Email: dmatth14@ford.com
Room 25/118
` Please consider your environmental responsibility before printing this
e-mail


-----Original Message-----
From: M. Adam Davis [mailto:adampic@UBASICS.COM]
Sent: 31 January 2002 14:53
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [PIC]:16F877 and LCD


Since there seems to be a good bit of interest in this, I'll see about
modifying one of my current projects to portB instead of A.

The code for the 'f877 with the LCD EN and RS on PORTA, and the data
lines on PORTC is here:
http://ubasics.com/adam/pic/node.c

I don't know when I'll have time to modify it, but you can load it up.

The first thing it does is sends "Micro Basics HAT" to the top line of a
16x2 LCD display (should be the top line of any display) then goes on to
perform its basic duties (which in this case is measuring pulse length
on two pins for a 2-axis acceleraometer).  To get it to do anything
after that you'll need to rip out all the 'while(accel...)' statements.
 At that point it'll start displaying 3 hex numbers on the bottom line
of a 2 line LCD.

If you are only using one line on your LCD, make sure you're
initializing it correctly.  Check out the numerous website and tutorials
on initializing alphanumeric LCD displays.  My initialization sets up
the display for two lines, and while it shouldn't matter it sometimes can.

-Adam


Michael Pettersson wrote:

>Hello All!
>
>I'm new with PIC and the 16F877 and have started testing the CC5Xfree from
>http://www.bknd.com
>
>I have a project that I would like to start with but I need a LCD for this.
>My first attampts was not succesful and now I need some help.
>
>Could anyone help me with a LCD 4 bit parallell test software with the
>cc5xfree software and against the 16F877 micro?
>
>Thanks!
>
>Michael
>
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