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108 lines
3.2 KiB
C
108 lines
3.2 KiB
C
/*
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* geany_encoding=koi8-r
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* main.c
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*
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* Copyright 2017 Edward V. Emelianov <eddy@sao.ru, edward.emelianoff@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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*/
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#include "includes.h"
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/*
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volatile uint16_t Milliseconds = 0, Seconds = 0, days = 0;
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void print_time(){
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printUint((uint8_t*)&days, 2);
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usart_send("d");
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printUint((uint8_t*)&Seconds, 2);
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usart_send("s");
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printUint((uint8_t*)&Milliseconds, 2);
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usart_send("ms\n");
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}*/
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int main() {
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/** setup all other pins **/
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STPRS_OFF(); // turn off steppers before configuring to output
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DDRD = 0xfc; // steppers
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DDRC = 0x0f; // steppers diagram
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// 328p have no port A
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PORTAB |= FLAT_PIN | NEON_PIN | SHTR_PIN; // turn all off
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DDRAB = PORTAB_PINS;
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/** USART config **/
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// set baudrate (using macros from util/setbaud.h)
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UBRR0H = UBRRH_VALUE;
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UBRR0L = UBRRL_VALUE;
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#if USE_2X
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UCSR0A |= _BV(U2X0);
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#else
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UCSR0A &= ~(_BV(U2X0));
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#endif
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UCSR0C = _BV(UCSZ01) | _BV(UCSZ00); // 8-bit data
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UCSR0B = _BV(RXEN0) | _BV(TXEN0) | _BV(RXCIE0); // Enable RX and TX, enable RX interrupt
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/** setup timer 0 - system timer **/
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// set prescaler to 8 and start the timer (2MHz*256 = 0.128ms period)
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#if defined (__AVR_ATmega8535__)
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//TCCR0 |= _BV(CS01) | _BV(CS00); // /64
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TCCR0 |= _BV(CS01);
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#else
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//TCCR0B |= _BV(CS01) | _BV(CS00);
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TCCR0B |= _BV(CS01);
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#endif
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TIMSK0 |= _BV(TOIE0);
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stepper_setup();
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sei(); // enable interrupts
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wdt_enable(WDTO_2S); // start watchdog
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while(1){
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wdt_reset();
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if(stepper_pulse) stepper_process();
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if(usart_flags & U_RX_COMPLETE)
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process_string();
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}
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return 0;
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}
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uint8_t LEDs[3] = {20,20,20}; // LEDs shining time
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ISR(TIMER0_OVF_vect){
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static uint8_t shi_counter = 0;/* tick_ctr = 0;
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TCNT0 += 6; // 0.125ms period
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if(++tick_ctr == 8){
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tick_ctr = 0;
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if(++Milliseconds == 1000){
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Milliseconds = 0;
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if(++Seconds == 86400){
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Seconds = 0;
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++days;
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}
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}
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}*/
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if(shi_counter == 0){ // turn all LEDs on
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PORTAB |= LED1_PIN | LED2_PIN | LED3_PIN;
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}
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// now check which LEDs we need to turn off
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if(shi_counter == LEDs[0]) PORTAB &= ~LED1_PIN;
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if(shi_counter == LEDs[1]) PORTAB &= ~LED2_PIN;
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if(shi_counter == LEDs[2]) PORTAB &= ~LED3_PIN;
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++shi_counter;
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}
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