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Fixed some PWM pins and started servo library.

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This commit is contained in:
Marvin Blum
2017-04-20 01:17:31 +02:00
parent 27eee937a3
commit 55261de66c
5 changed files with 88 additions and 76 deletions
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28
ard/pins.c
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@@ -28,11 +28,13 @@ void pins_init(){
// clear timer to compare match for PWM output
TCCR0A |= _BV(WGM01)|_BV(WGM00);
TCCR1A |= _BV(WGM01)|_BV(WGM00);
TCCR1A |= _BV(WGM11)|_BV(WGM10);
TCCR2A |= _BV(WGM21)|_BV(WGM20);
// enable interrupt on timer overflow for PWM output
TIMSK0 |= _BV(TOIE0);
TIMSK1 |= _BV(TOIE1);
TIMSK2 |= _BV(TOIE2);
}
void pin_mode(unsigned char pin, unsigned char mode){
@@ -167,21 +169,19 @@ void analog_write(unsigned char pin, unsigned char value){
// 1. clear timer on compare match (pins_init)
// 2. set interrupt on overflow (pins_init) and value to compare to
// 3. set timer scaling to 1, which starts the timer
if(pin == 3){
TCCR2A |= _BV(COM2B1);
OCR2B = value;
TCCR2B |= _BV(CS20)|_BV(CS21);
// timer 0
if(pin == 6){
TCCR0A |= _BV(COM0A1);
OCR0A = value;
TCCR0B |= _BV(CS00)|_BV(CS01);
}
else if(pin == 5){
TCCR0A |= _BV(COM0B1);
OCR0B = value;
TCCR0B |= _BV(CS00)|_BV(CS02);
}
else if(pin == 6){
TCCR0A |= _BV(COM0A1);
OCR0A = value;
TCCR0B |= _BV(CS00)|_BV(CS02);
TCCR0B |= _BV(CS00)|_BV(CS01);
}
// timer 1
else if(pin == 9){
TCCR1A |= _BV(COM1A1);
OCR1A = value;
@@ -192,11 +192,17 @@ void analog_write(unsigned char pin, unsigned char value){
OCR1B = value;
TCCR1B |= _BV(CS10)|_BV(CS11);
}
// timer 2
else if(pin == 11){
TCCR2A |= _BV(COM2A1);
OCR2A = value;
TCCR2B |= _BV(CS20)|_BV(CS21);
}
else if(pin == 3){
TCCR2A |= _BV(COM2B1);
OCR2B = value;
TCCR2B |= _BV(CS20)|_BV(CS21);
}
}
// maps A0-A7 to 0-7