Subversion Repositories group.electronics

Rev

Rev 128 | 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 
 
128 pfowler 10 
uint32_t millis(void) {
11 
	return systime;
12 
}
13 
 
123 pfowler 14 
inline uint8_t map_8(uint8_t x, uint8_t in_min, uint8_t in_max, uint8_t out_min, uint8_t out_max) {
15 
	return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
16 
}
17 
 
18 
inline void delay_ms(uint16_t count) {
19 
  while(count--)
128 pfowler 20 
    _delay_ms(1);
123 pfowler 21 
}
22 
 
23 
void pulsePin(uint8_t port, uint8_t pin, uint16_t count) {
24 
  sbi(port, pin);
25 
  delay_ms(count);
26 
  cbi(port, pin);
27 
}
28 
 
128 pfowler 29 
void systemLed(uint8_t state) {
126 pfowler 30 
	if (state)
128 pfowler 31 
		sbi(PORTA, PA0);
126 pfowler 32 
	else
128 pfowler 33 
		cbi(PORTA, PA0);
126 pfowler 34 
}
35 
 
123 pfowler 36 
char* tick_addr;
37 
 
38 
void sysclockInit(void) {
128 pfowler 39 
	TIMSK = (1<<TOIE0);             // Eable timer overflow for Timer0
40 
	TCCR0B = (1 << CS00) ;          // /1 prescaler
41 
	TCNT0 = 0x00;                   // Set Timer0 to 0
123 pfowler 42 
}
43 
 
126 pfowler 44 
void swap_u8(uint8_t* a, uint8_t* b) {
45 
	uint8_t t = *b;
46 
	*b = *a;
47 
	*a = t;
48 
}
49 
 
50 
void swap_u16(uint16_t* a, uint16_t* b) {
51 
	uint16_t t = *b;
52 
	*b = *a;
53 
	*a = t;
54 
}
55 
 
128 pfowler 56 
/*
57 
 * Convert from a uint32 to BCD
58 
 * Use like:
59 
 * 	uint8_t[10] values; itobcd(ui32num, values);
60 
 * 	values will be an array with BCD digits
61 
 * 	returned value will be how many digits used
62 
 */
63 
uint8_t itobcd(uint32_t val, uint8_t *result) {
64 
  char BCD_text[10]; // max 10 digits on uint32
65 
  uint8_t i = 0;
66 
 
67 
  itoa(val, BCD_text, 10);
68 
  while(BCD_text[i]) {
69 
    result[i] = BCD_text[i]-'0';
70 
    i++;
71 
  }
72 
  return i;
73 
}
74