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/* Example of the simulavrxx delivery.
* This example shows the usage of the analog comparator
* of the AVR mega devices the output of the ersult on Port B.
* Compare AIN0 and ANI1. If AIN0 > AIN1 port B=0xff, else port B=0
*
* Status: in work
*
* $Id$
*/
#include <avr/io.h>
int main () {
int i;
volatile int x; // For future use
DDRB=0xff; // Set all pins of port B to output
// SFIOR |= (1<<ACME); // Enable Analog Multiplexer
#ifdef CONNECT_TO_WRITEPIPE
// To use this feature simulavrxx needs to be connect to
// a write pipe e.g. by the commandline switch -W0x20,-
for( i=0; i<10000; ++i )
*( (volatile char*) 0x20)='*';
#endif
//--------------------------------------------
do {
if (ACSR & (1<<ACO) ) { // Check the result
PORTB=0xff;
x=1;
} else {
PORTB=0x00;
x=0;
}
} while(1); // do forever
}
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