In SX Microcontrollers, SX/B Compiler and SX-Key Tool, PJ Allen wrote:

OK -- Yes, all you need is a resistor and an LED.
This program works (the LED starts OFF and then gradually increases to full ON), I am watching it right before me --

[code]
DEVICE sx28, oschs3, TURBO, OPTIONX
IRC_CAL  IRC_SLOW
FREQ     75_000_000 


PROGRAM  Start 

  

duty  var  byte 

  

TRIS_A = $00 

  

Start:
DO
FOR duty = 0 TO 255 ' sweep through angles
PWM RA.0, duty, [color=red>50</FONT> ]speed of change[/color]
NEXT
LOOP 

I am using RA.0 for the output, and I am not using a capacitor or RC network at all (and I don't know why you are.)  

You will have to change the FREQ directive to match your time-base.

[/code]

---------- End of Message ----------


You can view the post on-line at:
http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=201629#m201861

Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com

The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2007 (http://www.dotNetBB.com)