/*
havrapp.c

Henriks AVR application
Copyright Henrik Björkman www.eit.se/hb 2005
All rights reserved etc etc...

For hardware see: 
H:\d\eget\projects\inteligent_electronic_thermostat\hw\0.1


History

2005-02-14
want to use serial port. Have adapted some code I found
at http://www.lka.ch/projects/avr/
Henrik Bjorkman

2005-02-20
Will try to interpret some commands
Henrik

*/


#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/pgmspace.h>
#include <avr/wdt.h>

#include <stdlib.h>
#include <string.h>
#include <ctype.h>

#include "avr_cfg.h"
#include "avr_uart.h"
#include "avr_tmr0.h"


int mainTimer;
int mainCounter=0;


int main( void ) 
{
  wdt_enable(WDTO_2S);

  // we relay on boot loader to initialize uart.
  //uart_init();

  avr_tmr0_init();

  sei(); // enable global interrupts


  uart_print_P(PSTR("\r\n" VERSION_STRING "\r\n")); 


  wdt_reset();
  

  mainTimer=avr_tmr0_gettick()+AVR_TMR0_TICKS_PER_SEC();

  for(;;)
  {
    int t=avr_tmr0_gettick();
  
    wdt_reset();

    int c=uart_getchar();
    if (c>0)
    {
      if (c>='a')
      {
        c-=0x20;
      }
      uart_putchar(c);
    }

    if ((t-mainTimer)>0)
    {
      uart_putchar('0'+mainCounter);
      if (mainCounter>=9)
      {
        mainCounter=0;
      }
      else
      {
        mainCounter++;  
      } 
      mainTimer=t+AVR_TMR0_TICKS_PER_SEC();
    }

  }

  

  return(0);
} // end main()