Alright Guys

Please forgive me if this sounds trivial, I'm very new with PIC programing.

Anyway I'm trying to find away to change the rate an LED flashes using a buttons input.

Any Ideas?

I made this, which has a delay and turns the LED on and off:

for (i = 0; i < 130; i++) //I got this type of delay out of the evil genius book.

for (j = 0; j < 40; j++);

RA5 = RA5 ^ 1; // Switches LED On and Off


if (0 == RA3) // If the Button is pressed
{

//Somehow increase the delay so the led flashes faster"
}


Im using a PICkit1 with the 16f684 PIC.


Cheers Guys

 

Sorted it!!

Code:


#include <pic.h>

/*

RA3 - Button Connection
RA4 - LED Positive Connection
RA5 - LED Negative Connection

Chris Stringer
22/10/09

*/

__CONFIG(INTIO & WDTDIS & PWRTEN & MCLRDIS & UNPROTECT \
& UNPROTECT & BORDIS & IESODIS & FCMDIS);

int i, j, speed = 35;

main()
{

PORTA = 0x3F; // All Bits are High
CMCON0 = 7; // Turn off Comparators
ANSEL = 0; // Turn off ADC
TRISA4 = 0; // Make RA4/RA5 Outputs
TRISA5 = 0;


while(1 == 1) // Loop Forever
{


if (0 == RA3) // Set values using "if" statement
{

speed = speed + 5;

} // fi



for (i = 0; i < 255; i++) // Simple 500ms Delay
for (j = 0; j < speed; j++);

RA5 = RA5 ^ 1; // Toggle LED State




} // elihw
} // End