void writeLedDisplay(int value) {
if(value < 0 && value > -999) {
spi_writeWord(4,10); //negative sign
value = abs(value);
}
if(value >= 0 && value <= 9999) {
int x = 1;
while(value > 0) {
spi_writeWord(x,value%10);
value /= 10;
x++;
}
}
}
void writeLedDisplay( int value ) // toont de waarde van value op het 4-digit display
{
int i = 1;
while (value > 0) {
int digit = value % 10;
spi_writeWord(i,digit);
value /= 10;
i++;
}
}
int main()
{
DDRB=0x01; // Set PB0 pin as output for display select
spi_masterInit(); // Initialize spi module
displayDriverInit(); // Initialize display chip
// clear display (all eight's)
for (char i = 1; i <= 4; i++)
{
spi_writeWord(i,15);
}
wait(1000);
writeLedDisplay(15);
return (1);
}
int main()
{
DDRB=0x01; // Set PB0 pin as output for display select
spi_masterInit(); // Initialize spi module
displayDriverInit(); // Initialize display chip
// clear display (all zero's)
for (char i =1; i<=4; i++)
{
spi_writeWord(i,0);
}
//wait(1000);
//// write 4-digit data
//for (char i =1; i<=4; i++)
//{
//spi_writeWord(i,i);
//wait(1000);
//}
//writeLedDisplay(1512);
//In de main:
writeLedDisplay(-120);
wait(1000);
return (1);
}
