74 lines
2.1 KiB
C
74 lines
2.1 KiB
C
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#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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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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uint16_t led2;
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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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/*do one conversion*/
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ADCSRA |= (1 << ADSC);
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while (ADCSRA & (1 << ADSC)) {
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/*wait for conversion to end */
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}
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uint16_t __attribute__ ((unused)) dummy = ADCW; //read once
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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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DDRC |= (1 << PORTC0) | (1 << PORTC1) | //set LED Ports to output:
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(1 << PORTC2) | (1 << PORTC3);
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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) | (1 << PORTC2)); //set Led Ports to input
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/*pull ups off*/
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PORTC &= ~((1 << PORTC0) | (1 << PORTC2));
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discharge = false;
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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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ADMUX = (ADMUX & ~(0x1F)) | 2; // select channel 2
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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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led2 = ADCW; // read result
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#if 0
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USART0_putc('1');
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USART0_putc(':');
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USART0_put_uint16(led1);
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USART0_crlf();
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USART0_putc('2');
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USART0_putc(':');
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USART0_put_uint16(led2);
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USART0_crlf();
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#endif
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music_setNote(400 +
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((0x1ff - led1) + (0x1ff - led2)) * 5, 0);
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discharge = true;
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}
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timer_set(&mytimer, 2); //relaunch timer
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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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