#define F_CPU 8000000
 
#define LCD_LINES   4  
#define LCD_DISP_LENGTH 20
 
#define LCD_PORT   PORTB     ///< port for the LCD lines
#define LCD_DATA0_PORT LCD_PORT     ///< port for 4bit data bit 0
#define LCD_DATA1_PORT LCD_PORT     ///< port for 4bit data bit 1
#define LCD_DATA2_PORT LCD_PORT     ///< port for 4bit data bit 2
#define LCD_DATA3_PORT LCD_PORT     ///< port for 4bit data bit 3
#define LCD_DATA0_PIN 4      ///< pin for 4bit data bit 0
#define LCD_DATA1_PIN 5      ///< pin for 4bit data bit 1
#define LCD_DATA2_PIN 6      ///< pin for 4bit data bit 2
#define LCD_DATA3_PIN 7      ///< pin for 4bit data bit 3
#define LCD_RS_PORT  PORTC        ///< port for RS line
#define LCD_RS_PIN  7      ///< pin for RS line
#define LCD_RW_PORT  PORTC        ///< port for RW line
#define LCD_RW_PIN  6      ///< pin for RW line
#define LCD_E_PORT  PORTC        ///< port for Enable line
#define LCD_E_PIN  5      ///< pin for Enable line 
 
#include "s/g.h"
#include "s/rprintf.c"
#include "s/lcd.c"
#include "s/adc.c"
#include "util/delay.h"
 
 
//! main functie, start programma, moet altijd aanwezich zijn
int main(void){
   outb(DDRA, 0x0);
 
   uartInit(UART_FULL, 19200);
   rprintfInit(uartSendByte);
   rprintf("UART PRESENTn");
 
   lcdInit(LCD_DISP_ON);
 
   // adcInit(ADC_clokc_prescaleer, ADC_referentie);
   // Prescalers: 128, 64, 32, 16, 8, 4, 2
      // hoe groter de prescaler (128) hoe naukeuriger
      // en stabieler de waarden zullen zijn
   // Referentie: AVCC, AREF, interne 2.56V
   adcInit(ADC_P128, ADC_AVCC);
 
   u16 adcWaarde;
   u08 buffer[4];
 
   rprintf("ADC testn");
   while(1){
      // waarde van ADC channel 7 (PA7)
      // op de Mega16 zijn 8 channels beschikbaar PA0..7
      adcWaarde = adcGet(7);      
 
      // Via uart zenden
      rprintf("ADC: %dn", adcWaarde);
 
      // op LCD tonen
      lcdClr();
      lcdPuts("ADC test");
      lcdGotoXY(0, 1);
      // decimaal
      lcdPuts( itoa(adcWaarde, buffer, 10) );
      lcdGotoXY(0, 2);
      // binair
      lcdPuts( itoa(adcWaarde, buffer, 2) );
 
      _delay_ms(500);   
   }
 
   return 0;
}

ADC_P2      ///< -> CPU clk/2
ADC_P4      ///< -> CPU clk/4
ADC_P8      ///< -> CPU clk/8
ADC_P16      ///< -> CPU clk/16
ADC_P32      ///< -> CPU clk/32
ADC_P64      ///< -> CPU clk/64
ADC_P128   ///< -> CPU clk/128
 
ADC_AREF   ///< -> AREF pin, internal VREF turned off
ADC_AVCC   ///< -> AVCC pin, internal VREF turned off
ADC_256V   ///< -> Internal 2.56V VREF