// initialize Timer and IO pins, needs to be called once
void IrWidget::setup(boolean pullup) {
#ifdef ARDUINO
// configure signal capture ICP pin as input
cbi(CAT2(DDR, CAP_PORT), CAP_PIN);
if (pullup)
sbi(CAT2(PORT, CAP_PORT), CAP_PIN); // enable the internal 10k pull-up resistor
#if defined(DEBUG_PIN) && defined(DEBUG_PORT)
sbi(CAT2(DDR, DEBUG_PORT), DEBUG_PIN); // configure logic analyzer debug pin as output
#endif
// init timer, disable power save mode of timer
#ifdef PRR0 // for ATmega32U4 and ATmega2560
#if PRTIM <= 2
cbi(PRR0, CAT2(PRTIM, CAP_TIM)); // for ATmega32U4 and ATmega2560
#else
cbi(PRR1, CAT2(PRTIM, CAP_TIM)); // for ATmega2560
#endif
#else
cbi(PRR, CAT2(PRTIM, CAP_TIM));
#endif
CAT3(TCCR, CAP_TIM, A) = 0; // Timer mode 0 = normal
CAT3(TCCR, CAP_TIM, B) = _BV(CAT2(ICNC, CAP_TIM)) | CAPTURE_PRESCALER_SETTING; // prescaler according to setting, enable noise canceler
#else
std::cout << "pinMode(CAPTURE_PIN_1, " << (pullup ? "INPUT_PULLUP)" : "INPUT)") << std::endl;
#endif
}
static byte_t usb_tx_state; // TX_STATE_*, see enum above
static byte_t usb_tx_total; // total transmit size
static byte_t* usb_tx_data; // pointer to data to transmit
static byte_t new_address; // new device address
#if defined USBTINY_VENDOR_NAME
struct
{
byte_t length;
byte_t type;
int string[sizeof(USBTINY_VENDOR_NAME)-1];
} string_vendor PROGMEM =
{
2 * sizeof(USBTINY_VENDOR_NAME),
DESCRIPTOR_TYPE_STRING,
{ CAT2(L, USBTINY_VENDOR_NAME) }
};
# define VENDOR_NAME_ID 1
#else
# define VENDOR_NAME_ID 0
#endif
#if defined USBTINY_DEVICE_NAME
struct
{
byte_t length;
byte_t type;
int string[sizeof(USBTINY_DEVICE_NAME)-1];
} string_device PROGMEM =
{
2 * sizeof(USBTINY_DEVICE_NAME),
