cleanup: makefile, hbc and removed unused files

[lra-as-sensor] / hbc.c

diff --git a/hbc.c b/hbc.c
index 38332a1..30a1769 100644 (file)
--- a/hbc.c
+++ b/hbc.c
@@ -7,12 +7,12 @@
 #include <avr/power.h>
 #include <avr/interrupt.h>
 #include <util/delay.h>
-#include "haptic.h"
        
 ISR(SIG_COMPARATOR)
 {
        if (ACSR & (1 << ACO)) {
                PORTB |= (1 << PB4);
+               /* turn of comparator on detection */
                ACSR &= ~(1 << ACIE);
        } else {
                PORTB &= ~(1 << PB4);
@@ -31,9 +31,6 @@ static void init_board(void)
 {
        power_adc_disable();
        wdt_disable();
-       /* enable interal reference for 
-        * comparator 
-        * When the bandgap reference is connected to the Analog Comparator (by setting the ACBG bit in ACSR). */
 }
 
 static void set_ref_voltage(void)
@@ -52,11 +49,14 @@ static void config_comparator(void)
        ADCSRA = 0;
        ADCSRB |= (1 << ACME); /* multiplex enable */
        
-       //ADMUX |= (1 << MUX0); /* ADC1 as negative input */
+       /* Use admux to set alternative negative pin */
+       //ADMUX |= (1 << MUX0);
        
+       /* enable interal reference for 
+        * comparator 
+        * When the bandgap reference is connected to the Analog Comparator (by setting the ACBG bit in ACSR). */
        ACSR &= ~(1 << ACD); /* enable comparator */
        ACSR |= (1 << ACBG);
-       //ACSR |= (1 << ACIS1) | (1 << ACIS0);
 
        DIDR0 |= (1 << AIN1D) | (1 << AIN0D);
 
@@ -68,10 +68,8 @@ int main(void)
        init_board();
 
        DDRB |= (1 << DDB4);
-       //PORTB |= (1 << PB1);
 
        cli();
-       //set_ref_voltage();
        config_comparator();
        sei();
        switch_idle();