#include <mega8.h>
#include <delay.h>
#define pinWrite(i,j,port)port=(i)?port|(1<<j):port&(~(1<<j))
#define pinPulse(j,port)port|=(1<<j)\
port&=(~(1<<j))
#define sport PORTB
#define sclock PORTB1
#define slatch PORTB2
#define sdata PORTB0
uint8_t j,i=0,a[]={255, 255, 193, 221, 221, 255, 255, 255};
void dshift(uint8_t data)
{
for(uint8_t i=0;i<8;i++)
{
if(data & 0b10000000)
{
pinWrite(1,sdata,sport);
}
else
{
pinWrite(0,sdata,sport);
}
pinPulse(sclock,sport);
data=data<<1; //Now bring next bit at MSB position
}
pinPulse(slatch,sport);
}
void main(void)
{
// Input/Output Ports initialization
// Port B initialization
// Function: Bit7=Out Bit6=Out Bit5=Out Bit4=Out Bit3=Out Bit2=Out Bit1=Out Bit0=Out
DDRB=(1<<DDB7) | (1<<DDB6) | (1<<DDB5) | (1<<DDB4) | (1<<DDB3) | (1<<DDB2) | (1<<DDB1) | (1<<DDB0);
// State: Bit7=0 Bit6=0 Bit5=0 Bit4=0 Bit3=0 Bit2=0 Bit1=0 Bit0=0
PORTB=(0<<PORTB7) | (0<<PORTB6) | (0<<PORTB5) | (0<<PORTB4) | (0<<PORTB3) | (0<<PORTB2) | (0<<PORTB1) | (0<<PORTB0);
// Port C initialization
// Function: Bit6=Out Bit5=Out Bit4=Out Bit3=Out Bit2=Out Bit1=Out Bit0=Out
DDRC=(1<<DDC6) | (1<<DDC5) | (1<<DDC4) | (1<<DDC3) | (1<<DDC2) | (1<<DDC1) | (1<<DDC0);
// State: Bit6=0 Bit5=0 Bit4=0 Bit3=0 Bit2=0 Bit1=0 Bit0=0
PORTC=(0<<PORTC6) | (0<<PORTC5) | (0<<PORTC4) | (0<<PORTC3) | (0<<PORTC2) | (0<<PORTC1) | (0<<PORTC0);
// Port D initialization
// Function: Bit7=Out Bit6=Out Bit5=Out Bit4=Out Bit3=Out Bit2=Out Bit1=Out Bit0=Out
DDRD=(1<<DDD7) | (1<<DDD6) | (1<<DDD5) | (1<<DDD4) | (1<<DDD3) | (1<<DDD2) | (1<<DDD1) | (1<<DDD0);
// State: Bit7=0 Bit6=0 Bit5=0 Bit4=0 Bit3=0 Bit2=0 Bit1=0 Bit0=0
PORTD=(0<<PORTD7) | (0<<PORTD6) | (0<<PORTD5) | (0<<PORTD4) | (0<<PORTD3) | (0<<PORTD2) | (0<<PORTD1) | (0<<PORTD0);
while (1)
{
for(i=0;i<8;i++)
{
j=a[i];
dshift(j);
pinPulse(PORTB4,PORTB);
}
}
}
The above code gives the error
Error: C:\Users\deepa\Desktop\matrix\ledm.c(12): '(' expected
When I convert the first uint8_t to int, it gives even more errors:
Error: C:\Users\deepa\Desktop\matrix\ledm.c(13): declaration syntax error
Error: C:\Users\deepa\Desktop\matrix\ledm.c(15): ')' expected, but ';' found
Error: C:\Users\deepa\Desktop\matrix\ledm.c(15): ';' expected, but ')' found
Error: C:\Users\deepa\Desktop\matrix\ledm.c(28): ';' expected
Error: C:\Users\deepa\Desktop\matrix\ledm.c(29): operand types 'int (*)()' and 'int' are incompatible with the '<<' or '<<=' operator
Error: C:\Users\deepa\Desktop\matrix\ledm.c(34): ';' expected
Error: C:\Users\deepa\Desktop\matrix\ledm.c(137): too many arguments in function call
Error: C:\Users\deepa\Desktop\matrix\ledm.c(138): ';' expected
I am just a beginner, so sorry for any mistakes i might have made.
