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breathing led

master
Yorick van Pelt 2019-01-09 01:46:48 +01:00
parent 61e0390ad2
commit 45068a2816
Signed by: yorick
GPG Key ID: D8D3CC6D951384DE
1 changed files with 20 additions and 15 deletions
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35
src/blink_led.c
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@ -22,11 +22,12 @@ __code uint16_t __at (_CONFIG1) __configword = _FOSC_INTOSC & _CLKOUTEN_OFF & _W
void delay(uint16_t iterations) void delay(uint16_t iterations)
{ {
uint16_t i, j; uint16_t i, j;
for (i = 0; i < iterations; i++) { for (i = 0; i < iterations; i++) {
// Prevent this loop from being optimized away. // Prevent this loop from being optimized away.
for (j = 0; j < 1000; j++) { //for (j = 0; j < 12; j++) {
__asm nop __endasm; __asm nop __endasm;
} //}
} }
} }
#define PPSO_PWM1 3 #define PPSO_PWM1 3
@ -35,12 +36,12 @@ void main(void)
OSCCON = 0xf0; OSCCON = 0xf0;
TRISC = 0; TRISC = 0;
//SLRCONC = 0; //SLRCONC = 0;
OPTION_REGbits.PSA = 1;
LED_PORT = 0; LED_PORT = 0;
PWM1CLKCON = 0x00; // From Fosc w/o prescaler PWM1CLKCON = 0x00; // From Fosc w/o prescaler
PWM1PRH = PWM1PRL = 0xFF; PWM1PRH = PWM1PRL = 0xFF;
PWM1PH = 0; PWM1PH = 0;
PWM1DCH = 0x80; PWM1DCH = PWM1DCL = 0;
PWM1DCL = 0;
PWM1OF = 0; PWM1OF = 0;
@ -55,15 +56,19 @@ void main(void)
while (1) { while(1) {
//LED_PORT = 1; // LED On delay(1);
PWM1DCH = 0x80; while (PWM1DCL < 0xFF || PWM1DCH < 0xFE) {
PWMLD = 1; if (PWM1DCL == 0xFF) PWM1DCH++;
delay(300); PWM1DCL++;
//LED_PORT = 0; // LED Off PWMLD = 1;
//PWM1DCH = 0xff; delay(1);
PWM1DCH = 0x10; }
PWMLD = 1; while (PWM1DCL > 0 || PWM1DCH > 0) {
delay(300); if (PWM1DCL == 0) PWM1DCH--;
} PWM1DCL--;
PWMLD = 1;
delay(1);
}
}
} }