83 lines
1.9 KiB
C
83 lines
1.9 KiB
C
#include <inttypes.h>
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#include <stdlib.h>
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#include <avr/io.h>
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#include "../lib/apps.h"
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#include "../lib/bughal.h"
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#include "../lib/util.h"
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#include "../lib/music.h"
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#include "../lib/usart.h"
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inline uint16_t biased_random(uint16_t value) {
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return value / 8 * (rand() & 7);
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}
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static void led_sound(void)
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{
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static bool discharge;
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static timer_t mytimer;
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uint16_t led1;
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if (mode_uninitialized) {
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mode_uninitialized = false;
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set_motor(MOTOR_OFF);
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ADMUX = (1 << REFS0); // use VCC reference
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ADCSRA = (1 << ADPS1) | (1 << ADPS0); // prescaler F_CPU/8
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ADCSRA |= (1 << ADEN); // ADC enable - turn it on
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timer_set(&mytimer, 10);
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discharge = true;
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}
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if (timer_expired(&mytimer)) {
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if (discharge) {
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led_off(LED_R | LED_L);
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DDRC |= (1 << PORTC0) | (1 << PORTC1); //set LED Ports to output:
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/*discharge*/
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PORTC = (PORTC & 0b11110000);
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/*set C0 and C2 to input (disable pullups)*/
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DDRC &= ~(1 << PORTC0); //set Led Ports to input
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/*pull ups off*/
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PORTC &= ~(1 << PORTC0);
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discharge = false;
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timer_set(&mytimer, 1);
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} else {
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/*single measurement*/
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ADMUX = (ADMUX & ~(0x1F)) | 0; // select channel 0
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ADCSRA |= (1 << ADSC); // start single conversion
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while (ADCSRA & (1 << ADSC)) ; // wait for conversion to end
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led1 = ADCW; // read result
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DDRC |= (1 << PORTC0) | (1 << PORTC1); //set LED Ports to output:
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set_motor(biased_random(led1) > 0x50 ? MOTOR_ON : MOTOR_OFF);
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if(biased_random(led1) > 0x20) {
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led_on(LED_R);
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} else {
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led_off(LED_R);
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}
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if(biased_random(led1) > 0x20) {
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led_on(LED_L);
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} else {
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led_off(LED_L);
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}
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if(biased_random(led1) > 0x90) {
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uint16_t tone = (biased_random(led1) * 2) + 500;
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music_setNote(tone, 0);
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} else {
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music_setNote(NOTE_PAUSE, 0);
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}
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discharge = true;
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timer_set(&mytimer, 20);
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}
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} //end if timer_expired
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} //end mode5
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REGISTER(led_sound)
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