Subversion Repositories group.electronics

Rev

Rev 126 | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
123 pfowler 1 
#include <avr/io.h>
126 pfowler 2 
#include <avr/wdt.h>
3 
#include <avr/interrupt.h>
4 
#include <string.h>
5 
#include <util/delay.h>
6 
#include <stdlib.h>
123 pfowler 7 
 
8 
#include "avrutil.h"
9 
 
10 
inline uint8_t map_8(uint8_t x, uint8_t in_min, uint8_t in_max, uint8_t out_min, uint8_t out_max) {
11 
	return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
12 
}
13 
 
14 
inline void delay_ms(uint16_t count) {
15 
  while(count--)
16 
    _delay_ms(1);
17 
}
18 
 
19 
void pulsePin(uint8_t port, uint8_t pin, uint16_t count) {
20 
  sbi(port, pin);
21 
  delay_ms(count);
22 
  cbi(port, pin);
23 
}
24 
 
126 pfowler 25 
void statusLed(uint8_t state) {
26 
	if (state)
27 
		sbi(PORTD, PD6);
28 
	else
29 
		cbi(PORTD, PD6);
30 
}
31 
 
123 pfowler 32 
uint8_t analogRead(uint8_t channel) {
33 
        ADMUX = (1<<ADLAR) | (1<<REFS0) | (0<<REFS1) | (channel & 0x0f);
34 
        ADCSRA |= (1<<ADSC);            // Start converting
35 
 
36 
        while (((ADCSRA >> ADSC) & 1)) {}       //Wait until conversion finished
37 
        uint8_t result = ADCH;
38 
        //ADCSRA |= (0<<ADSC);          // Stop converting
39 
 
40 
        return result;
41 
}
42 
 
43 
void analogInit() {
44 
	ACSR |= (1<<ACD); // Disable analog comparator
45 
 
46 
	/*
47 
        Setup ADC
48 
        ADMUX: 8 bit mode, Avcc ref
49 
        ADCSRA: Enable, 128 prescale
50 
	*/
51 
	ADMUX = (1<<ADLAR) | (0<<REFS0) | (1<<REFS1);
52 
	ADCSRA = (1<<ADEN) | (1<<ADPS2) | (1<<ADPS1) | (1<<ADPS0) ;
53 
}
54 
 
55 
 
56 
char* tick_addr;
57 
 
58 
void sysclockInit(void) {
59 
 
60 
	TIMSK0 = (1<<TOIE0);		// Eable timer overflow for Timer0
61 
	TCNT0 = 0x00;				// Set Timer0 to 0
62 
	TCCR0B = (1<< CS00) ;		// /1 prescaler
63 
 
64 
	//tick_addr = func;
65 
}
66 
 
126 pfowler 67 
void swap_u8(uint8_t* a, uint8_t* b) {
68 
	uint8_t t = *b;
69 
	*b = *a;
70 
	*a = t;
71 
}
72 
 
73 
void swap_u16(uint16_t* a, uint16_t* b) {
74 
	uint16_t t = *b;
75 
	*b = *a;
76 
	*a = t;
77 
}
78