I2C.zip_at90CAN128_at90can i

#include<iocan128v.h> #include<macros.h> #include<stdio.h> #include"PCF8563I2.h" void port_init(void) { PORTA = 0x00; DDRA = 0x00; PORTB = 0x01; DDRB = 0x0F; PORTC = 0x00; DDRC = 0x80; PORTD = 0x00; DDRD = 0x00; PORTE = 0x00; DDRE = 0xf0; PORTF = 0x04; DDRF = 0x06; PORTG = 0x01; DDRG = 0x0F; } void delay(unsigned int t) { unsigned int i=0,j=0; for(i=0;i<t;i++) { for(j=0;j<1000;j++); } } //UART0 initialize // desired baud rate: 9600 // actual: baud rate:9600 (0.0%) // char size: 8 bit // parity: Disabled void uart0_init(void) { UCSR0B = 0x00; //disable while setting baud rate UCSR0A = 0x00; UCSR0C = 0x06; UBRR0L = 0x33; //set baud rate lo UBRR0H = 0x00; //set baud rate hi UCSR0B = 0x98; } unsigned char Flag=0; #pragma interrupt_handler uart0_rx_isr:22 void uart0_rx_isr(void) { //uart has received a character in UDR unsigned char temp=0; temp=UDR0; PORTC^=0x80; Flag=1; } void putchar0(unsigned char c) { while ((UCSR0A & 0x20)==0); UDR0=c; } void main(void) { unsigned char i=0,temp=0; port_init(); uart0_init(); SEI(); delay(1000); WritePCF8563(0xa2,0x00,0x00); //WritePCF8563(0xa2,0x02,0x01); putchar0(0x55); putchar0(0x55); putchar0(ReadPCF8563(0xa2,0x00)); putchar0(ReadPCF8563(0xa2,0x01)); putchar0(ReadPCF8563(0xa2,0x02)); putchar0(ReadPCF8563(0xa2,0x03)); putchar0(ReadPCF8563(0xa2,0x04)); while(1) { if(Flag==1) { Flag=0; putchar0(ReadPCF8563(0xa2,0x02)); putchar0(ReadPCF8563(0xa2,0x03)); } } }