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#include <avr/io.h> // Include file for I/O operations
#include <stdlib.h>
extern uint32_t measure_freq(void);
extern void uart_init(uint16_t baud);
extern void uart_send_byte(uint8_t c);
extern void delay_ms (uint16_t k);
int main (void)
{
uint16_t data;
char a[6], *p;
DDRB = 255; // Configure port B as output
uart_init(38400);
while (1)
{
data = measure_freq();
PORTB = data >> 2; // convert 10 bit in to 8 bit
utoa(data, a, 10); // convert to ASCII string
p = a;
while(*p) uart_send_byte(*p++);
uart_send_byte('\n');
delay_ms(500);
}
}
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