void updateDisp(BYTE side) {
// check if we are holding text
if(holdText[side]) {
// check if the hold time has passed
if(millis - holdTimer[side] > HOLD_TIME) {
holdText[side] = FALSE;
}
// carry out blinking of text
else if(millis - blinkTimer[side] > BLINK_TIME) {
// redisplay the text
if(blinkStates[side]) {
blinkStates[side] = FALSE;
updateText(side, displayStates);
blinkTimer[side] = millis;
}
// blank the displays
else {
blinkStates[side] = TRUE;
blank_display(side);
blinkTimer[side] = millis;
}
}
}
// data is being displayed
else {
if(millis - refreshTime[side] > REFRESH_TIME) {
refreshTime[side] = millis;
write_num(chan[displayStates[side]], d_place_arr[displayStates[side]], side);
}
}
return;
}
int main(void)
{
// ADC Configuration
ADMUX = 0x00; // AREF, ADC0
ADCSRB = 0x00; // Free Running Mode
ADCSRA |= (1<<ADEN)|(1<<ADIE); // Enable ADC, ADC interrupt
ADCSRA |= (1<<ADPS2)|(0<<ADPS1)|(1<<ADPS0); // prescaler 32
DIDR0 |= (1<<ADC0D); // disable digital input
// SPI and Display Configuration
init_SPI();
send_cmd(SHUTDOWN_ADDR, SHUTDOWN_DISPLAY_ON);
send_cmd(DECODE_MODE_ADDR, DECODE_MODE_NO_DECODE);
send_cmd(INTENSITY_ADDR, INTENSITY_MAX);
send_cmd(SCAN_LIMIT_ADDR, SCAN_LIMIT_MAX);
blank_display();
// Test all pixels at startup
send_cmd(DISPLAY_TEST_ADDR, DISPLAY_TEST_ON);
_delay_ms(500);
send_cmd(DISPLAY_TEST_ADDR, DISPLAY_TEST_OFF);
_delay_ms(500);
sample = 0;
sei();
ADCSRA |= (1<<ADSC); // Start ADC
while(1);
}
