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Merge pull request #4 from rhssk/high_low_macros

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Introduce macros for setting pin to low or high
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Rihards Skuja 2017-11-24 20:59:43 +00:00 committed by GitHub
commit be9cedee7d
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2 changed files with 7 additions and 4 deletions
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3
include/main.h
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@ -1,6 +1,9 @@
#ifndef MAIN_H
#define MAIN_H
#define SET_HIGH(PORT, PIN) (PORT) |= (1 << (PIN))
#define SET_LOW(PORT, PIN) (PORT) &= ~(1 << (PIN))
void initIO(void);
void blinkLed(void);
void readTemp(void);

8
src/main.c
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@ -12,7 +12,7 @@
void initIO()
{
/* Servos */
DDRB |= (1 << SERVO_L);
SET_HIGH(DDRB, SERVO_L);
/* Phase Correct PWM, 9-bit; Inverting mode */
TCCR1A |= 1 << WGM11 | 1 << COM1A1 | 1 << COM1A0;
/* "Clear Timer on Compare match" mode; Prescaler = 1 */
@ -20,7 +20,7 @@ void initIO()
ICR1 = 19999; // F_CPU / 50Hz - 1
/* LED */
DDRD |= (1 << LED_1);
SET_HIGH(DDRD, LED_1);
}
void readTemp()
@ -31,9 +31,9 @@ void readTemp()
for (;;) {
d = ds18b20_gettemp();
if (d >= 21)
PORTD |= (1 << LED_1);
SET_HIGH(PORTD, LED_1);
else
PORTD &= ~(1 << LED_1);
SET_LOW(PORTD, LED_1);
_delay_ms(500);
}