void check_buttons(void) {
// sample buttons
unsigned char temp = PINC & 0x0f;
if (temp == old_buttons) return;
old_buttons = temp;
unsigned char trigger = ~temp & 0x0f;
if (!trigger) return;
if (trigger & 1) select_cam(0);
else if (trigger & 2) select_cam(1);
else if (trigger & 4) select_cam(2);
else if (trigger & 8) select_cam(3);
}
// ==============================================================================
// - main
// ------------------------------------------------------------------------------
int main(void)
{
// ------------------------- Initialize Hardware
//PORTB: LEDs
DDRB = 0x0f;
PORTB = 0x00;
// PORTC: Buttons
DDRC = 0x00; // set all pins to input
PORTC = 0x0f; // pullups
// PORTD: 4066 control, interrupt, rx/tx
DDRD = 0xf2;
// init UART
UCSR0B = ( 1 << UCSZ02);
UCSR0C = /*( 1 << UPM1) | */( 1 << UCSZ01) | ( 1 << UCSZ00 ); // Even Parity, 9 bit, 1 stop bit
UBRR0H = 0;
UBRR0L = 249; // 5000 baud (F_CPU/16/BAUD - 1)
//TODO check speed, we're on 20mhz now!!!
// enable Pinchange Interrupt on PC5 -> PCINT13
PCICR = (1 << PCIE1);
PCMSK1 = (1 << PCINT13);
// enable external interrupt
/*EICRA = (1 << ISC01) | (1 << ISC00);
EIMSK = (1 << INT0);*/
sei();
tx_state = idle_tx;
UCSR0B |= (1 << TXEN0); // turn on uart
select_cam(0);
unsigned long tt;
unsigned char idx;
// ------------------------- Main Loop
while(1) {
/*tt++;
if (tt > 100000) {
tt = 0;
idx++;
idx%=4;
PORTB = 1 << idx;
}*/
wdt_reset();
check_uart();
//check_buttons();
}
return 0;
}
// ==============================================================================
// - main
// ------------------------------------------------------------------------------
int main(void)
{
// ------------------------- Initialize Hardware
//PORTB: LEDs
DDRB = 0x0f;
PORTB = 0x00;
// PORTC: Buttons
DDRC = 0x00; // set all pins to input
PORTC = 0x0f; // pullups
// PORTD: 4066 control, interrupt, rx/tx, USB
DDRD = 0xf2;
// init UART
UCSR0B = ( 1 << UCSZ02);
UCSR0C = /*( 1 << UPM1) | */( 1 << UCSZ01) | ( 1 << UCSZ00 ); // Even Parity, 9 bit, 1 stop bit
UBRR0H = 0;
UBRR0L = 249; // 5000 baud (F_CPU/16/BAUD - 1)
// enable Pinchange Interrupt on PC5 -> PCINT13
PCICR = (1 << PCIE1);
PCMSK1 = (1 << PCINT13);
usbDeviceConnect();
usbReset();
usbInit();
wdt_enable(WDTO_1S); // enable watchdog timer
sei();
tx_state = idle_tx;
UCSR0B |= (1 << TXEN0); // turn on uart
select_cam(0);
unsigned long tt;
unsigned char idx;
// ------------------------- Main Loop
while(1) {
wdt_reset();
usbPoll(); // see if there's something going on on the usb bus
check_uart();
}
return 0;
}
// ------------------------------------------------------------------------------
// - usbFunctionSetup
// ------------------------------------------------------------------------------
uchar usbFunctionSetup(uchar data[8])
{
if(data[1] == POLL){ // GET ALL ad_values
reply[0] = 255; // this comes from the old gnuswitch, mixlevel, does not make sense anymore
reply[1] = on_tally_idx;
reply[2] = 0;
usbMsgPtr = reply;
return 3;
} else if(data[1] == SET_TALLY) { // Start Bootloader for reprogramming the gnusb
uint8_t c = data[2];
c %= 4;
select_cam(c);
} else if(data[1] == cmd_StartBootloader) { // Start Bootloader for reprogramming the gnusb
startBootloader();
}
return 0;
}
// ==============================================================================
// - main
// ------------------------------------------------------------------------------
int main(void)
{
// ------------------------- Initialize Hardware
//PORTB: LEDs
DDRB = 0x0f;
PORTB = 0x00;
// PORTC: Buttons
DDRC = 0x00; // set all pins to input
PORTC = 0x0f; // pullups
// PORTD: 4066 control, interrupt, rx/tx, USB
DDRD = 0xf2;
// timer 0 -> millisecond clock
ticks = 0;
TCCR0A = (1 << WGM01); // CTC
TCCR0B = (0 << CS02) | (1 << CS01) | (0 << CS00); // 8 prescaler @ 20Mhz -> 2'500'000 Hz
TIMSK0 = (1 << OCIE0A); // enable interrupt
OCR0A = 249; // 10000 Hz -> 10 ticks / Millisecond
// init UART
UCSR0B = ( 1 << UCSZ02);
UCSR0C = /*( 1 << UPM1) | */( 1 << UCSZ01) | ( 1 << UCSZ00 ); // Even Parity, 9 bit, 1 stop bit
UBRR0H = 0;
UBRR0L = 249; // 5000 baud (F_CPU/16/BAUD - 1)
// enable Pinchange Interrupt on PC5 -> PCINT13
PCICR = (1 << PCIE1);
PCMSK1 = (1 << PCINT13);
usbDeviceConnect();
usbReset();
usbInit();
wdt_enable(WDTO_1S); // enable watchdog timer
sei();
tx_state = idle_tx;
UCSR0B |= (1 << TXEN0); // turn on uart
select_cam(0);
unsigned long tt;
unsigned char idx;
// ------------------------- Main Loop
while(1) {
wdt_reset();
usbPoll(); // see if there's something going on on the usb bus
check_uart();
if (millis()-lastTime >= 80) {
check_buttons();
}
}
return 0;
}