| 0,0 → 1,93 |
|---|
| /*********************************************************************************************************************************** |
| * File: main.c |
| * |
| * Purpose: This program has been developed for the microcontroller test board AVR-CTRL |
| * It is reading a poti connected to analog input = ADC and passes that value to BL CTRL via I2C |
| * to set the turn rate of the connected electrical motor |
| * |
| * Functions: int main(void) |
| * ISR(ADC_vect) |
| * void init_ADC(void) |
| * |
| * hardware: AVR-Ctrl experimental board without LCD display as I2C bus is used |
| * |
| * Created: Jan 2013 |
| * |
| * Version: 1.00 experimental version |
| * |
| * Copyright: (c)2013 dk9nw -at- darc.de |
| * All rights reserved. This software is available only for non-commercial amateur radio or educational applications. |
| * Other uses are prohibited. This software may be modified only if |
| * the resulting code be made available publicly and the original author(s) given credit. |
| * |
| ***********************************************************************************************************************************/ |
| #include "main.h" |
| #include "timer.h" |
| #include "twimaster.h" |
| #include "analog.h" |
| |
| |
| // ************************************************************************************************************************** |
| // main function starting here |
| // |
| // INPUT: None |
| // OUTPUT: None |
| // RETURN: 1 |
| // -------------------------------------------------------------------------------------------------------------------------- |
| int main (void) |
| { |
| // DDRA = Port A Data Direction Register > DDA7 DDA6 DDA5 DDA4 DDA3 DDA2 DDA1 DDA0 |
| DDRA &= ~((1<<DDA7)|(1<<DDA6)|(1<<DDA5)|(1<<DDA4)|(1<<DDA3)); // those 5 keys are configured as input |
| |
| DDRB=0xFF; // all ports set as output as LEDs are connected here |
| PORTB = 0x00; // switch off all LEDs |
| |
| init_ADC(); // initialize analog digial converter |
| init_Timer0(); // initialize timer |
| i2c_init(); // initialize I2C Bus (TWI) |
| |
| |
| // ************************************************************************************************************************** |
| void loop2ms(void) |
| { |
| // ADCSRA = Analog Digital Conversion Status Register A -> ADEN ADSC ADATE ADIF ADIE ADPS2 ADPS1 ADPS0 |
| // ADSC = start conversion |
| ADCSRA |= (1<<ADSC); |
| |
| while(!AdReady); // wait that ISR in analog.c is passed |
| AdReady = 0; |
| |
| AdWertNick = AdWertNick / 2; // AdWertNick 0...511 |
| Motor[0] = (AdWertNick); // desired turn rate is passed over to the motor front side |
| Motor[1] = (AdWertNick); // desired turn rate is passed over to the motor rear side |
| |
| if (AdWertNick<32) PORTB = 0x01; // switch on LED 1 |
| if (AdWertNick>31 && AdWertNick<64) PORTB = 0x02; // ... LED 2 |
| if (AdWertNick>63 && AdWertNick<96) PORTB = 0x04; // ... LED 3 |
| if (AdWertNick>95 && AdWertNick<128) PORTB = 0x08; // ... LED 4 |
| if (AdWertNick>127 && AdWertNick<160) PORTB = 0x10; // ... LED 5 |
| if (AdWertNick>159 && AdWertNick<192) PORTB = 0x20; // ... LED 6 |
| if (AdWertNick>191 && AdWertNick<224) PORTB = 0x40; // ... LED 7 |
| if (AdWertNick>223 ) PORTB = 0x80; // ... LED 8 |
| } |
| // ************************************************************************************************************************** |
| |
| |
| |
| // ************************************************************************************************************************** |
| while (1) |
| { |
| if ( ((PINA & 0xF8)>> 3) == 0x01) break; // red button to finish program if necessary |
| |
| |
| if(Flag2ms()) // toggle that loop every 2 ms |
| { |
| loop2ms(); |
| } |
| } |
| // ************************************************************************************************************************** |
| |
| } |
| // *** EOF : main() ************************************************************************************************************* |
| |
| |