void LXSAMD21DMX::startOutput ( void ) {
if ( _direction_pin != DIRECTION_PIN_NOT_USED ) {
digitalWrite(_direction_pin, HIGH);
}
if ( _interrupt_status == ISR_INPUT_ENABLED ) {
stop();
}
if ( _interrupt_status == ISR_DISABLED ) { //prevent messing up sequence if already started...
SerialDMX.begin(DMX_BREAK_BAUD, (uint8_t)SERIAL_8N2);
// Assign pin mux to SERCOM functionality (must come after SerialDMX.begin)
pinPeripheral(PIN_DMX_RX, PIO_SERCOM_ALT);
pinPeripheral(PIN_DMX_TX, PIO_SERCOM_ALT);
_interrupt_status = ISR_OUTPUT_ENABLED;
_shared_dmx_data = dmxData();
_shared_dmx_slot = 0;
_shared_dmx_state = DMX_STATE_START;
SERCOM4->USART.INTENSET.reg = SERCOM_USART_INTENSET_TXC | SERCOM_USART_INTENSET_ERROR;
SERCOM4->USART.DATA.reg = 0;
}
}
void LXSAMD21DMX::startInput ( void ) {
if ( _direction_pin != DIRECTION_PIN_NOT_USED ) {
digitalWrite(_direction_pin, LOW);
}
if ( _interrupt_status == ISR_OUTPUT_ENABLED ) {
stop();
}
if ( _interrupt_status == ISR_DISABLED ) { //prevent messing up sequence if already started...
SerialDMX.begin(DMX_DATA_BAUD, (uint8_t)SERIAL_8N2);
// Assign pin mux to SERCOM functionality (must come after SerialDMX.begin)
pinPeripheral(PIN_DMX_RX, PIO_SERCOM_ALT);
pinPeripheral(PIN_DMX_TX, PIO_SERCOM_ALT);
_shared_dmx_data = dmxData();
_shared_dmx_slot = 0;
_shared_dmx_state = DMX_STATE_IDLE;
_interrupt_status = ISR_INPUT_ENABLED;
}
}
