// (Re)Initialize the specified mode.
// The mode parameter should be a value from enum DMXMode.
void ModifiedDMXSerialClass::init (int mode, uint8_t* data)
{
stat = 0;
#ifdef SCOPEDEBUG
pinMode(DmxTriggerPin, OUTPUT);
pinMode(DmxISRPin, OUTPUT);
#endif
_dmxData = data;
// initialize global variables
_dmxMode = DMXNone;
_dmxRecvState= IDLE; // initial state
_dmxChannel = 0;
_gotLastPacket = millis(); // remember current (relative) time in msecs.
// initialize the DMX buffer
for (int n = 0; n < DMXSERIAL_MAX+1; n++)
_dmxData[n] = 0;
// now start
_dmxMode = (DMXMode)mode;
if (_dmxMode == DMXController) {
// Setup external mode signal
pinMode(DmxModePin, OUTPUT); // enables pin 2 for output to control data direction
digitalWrite(DmxModePin, DmxModeOut); // data Out direction
// Setup Hardware
// Enable transmitter and interrupt
UCSRnB = (1<<TXENn) | (1<<TXCIEn);
// Start sending a BREAK and loop (forever) in UDRE ISR
_DMXSerialBaud(Calcprescale(BREAKSPEED), BREAKFORMAT);
_DMXSerialWriteByte((uint8_t)0);
_dmxChannel = 0;
} else if (_dmxMode == DMXReceiver) {
// Setup external mode signal
pinMode(DmxModePin, OUTPUT); // enables pin 2 for output to control data direction
digitalWrite(DmxModePin, DmxModeIn); // data in direction
// Setup Hardware
// Enable receiver and Receive interrupt
UCSRnB = (1<<RXENn) | (1<<RXCIEn);
_DMXSerialBaud(Calcprescale(DMXSPEED), DMXFORMAT); // Enable serial reception with a 250k rate
} else {
// Enable receiver and transmitter and interrupts
// UCSRnB = (1<<RXENn) | (1<<TXENn) | (1<<RXCIEn) | (1<<UDRIEn);
} // if
} // init()
// (Re)Initialize the specified mode.
// The mode parameter should be a value from enum DMXMode.
void ModifiedDMXSerialClass::init(int mode)
{
// Setup external mode signal
//TODO Refactor to constant A0 is used as the RX/TX en pin on the RF1 Serial adapter
pinMode(A0, OUTPUT); // enables pin 2 for output to control data direction
digitalWrite(A0, LOW); //Set it low to put the RS485 chip in Receive mode
#ifdef SCOPEDEBUG
//if in debug mode define some pins for watching the timing in the logic analyzer
pinMode(rxStatusPin, OUTPUT); // enables pin 2 for output to control data direction
pinMode(DmxTriggerPin, OUTPUT);
pinMode(DmxISRPin, OUTPUT);
#endif
// initialize global variables
_dmxMode = DMXNone;
_dmxRecvState = DMX_IDLE; // initial state
_dmxChannel = 0;
_gotLastPacket = millis(); // remember current (relative) time in msecs.
// initialize the DMX buffer
for (int n = 0; n < 18; n++){
for (int in = 0; in < 32; in++)
str[n][in] = 0;
}
// now start
_dmxMode = (DMXMode)mode;
// Setup Hardware
// Enable receiver and Receive interrupt
UCSRnB = (1 << RXENn) | (1 << RXCIEn);
_DMXSerialBaud(Calcprescale(DMXSPEED), DMXFORMAT); // Enable serial reception with a 250k rate
} // init()
// Initialize or reinitialize the DMX RDM mode.
// The other values are stored for later use with the specific commands.
void DMXSerialClass2::init(struct RDMINIT *initData, RDMCallbackFunction func, uint8_t modePin, uint8_t modeIn, uint8_t modeOut)
{
// This structure is defined for mapping the values in the EEPROM
struct EEPROMVALUES eeprom;
// save the given initData for later use.
_initData = initData;
_rdmFunc = func;
_dmxModePin = modePin;
_dmxModeIn = modeIn;
_dmxModeOut = modeOut;
_baseInit();
// now initialize RDM specific elements
_isMute = false;
_rdmAvailable = false;
_identifyMode = false;
_softwareLabel = "Arduino RDM 1.0";
DeviceIDCpy(_devID, initData->deviceID);
// read from EEPROM or set defaults
for (unsigned int i = 0; i < sizeof(eeprom); i++)
((byte *)(&eeprom))[i] = EEPROM.read(i);
// check if the EEEPROM values are from the RDM library
if ((eeprom.sig1 == 0x6D) && (eeprom.sig2 == 0x68)) {
_startAddress = eeprom.startAddress;
strcpy (deviceLabel, eeprom.deviceLabel);
DeviceIDCpy(_devID, eeprom.deviceID);
} else {
// set default values
_startAddress = 1;
strcpy (deviceLabel, "new");
_devID[4] = random255(); // random(255);
_devID[5] = random255(); // random(255);
} // if
// setup the manufacturer adressing device-ID
_devIDGroup[0] = _devID[0];
_devIDGroup[1] = _devID[1];
_saveEEPRom();
// now start
digitalWrite(_dmxModePin, _dmxModeIn); // data in direction
_dmxSendBuffer = _rdm.buffer;
// _dmxSendLen = ... will be set individually
// Setup Hardware
// Enable receiver and transmitter and interrupts
UCSRnB = (1<<RXENn) | (1<<RXCIEn);
_DMXSerialBaud(Calcprescale(DMXSPEED), DMXFORMAT); // Enable serial reception with a 250k rate
} // initRDM()
// Handle RDM Requests and send response
// see http://www.opendmx.net/index.php/RDM_Discovery
// see http://www.enttec.com/docs/sniffer_manual.pdf
void DMXSerialClass2::tick(void)
{
if ((_dmxState == IDLE) && (_rdmAvailable)) {
// never process twice.
_rdmAvailable = false;
// respond to RDM commands now.
bool8 packetIsForMe = false;
bool8 packetIsForGroup = false;
bool8 packetIsForAll = false;
bool8 isHandled = false;
struct RDMDATA *rdm = &_rdm.packet;
byte CmdClass = rdm->CmdClass; // command class
uint16_t Parameter = rdm->Parameter; // parameter ID
// in the ISR only some global conditions are checked: DestID
if (DeviceIDCmp(rdm->DestID, _devIDAll) == 0) {
packetIsForAll = true;
} else if (DeviceIDCmp(rdm->DestID, _devIDGroup) == 0) {
packetIsForGroup = true;
} else if (DeviceIDCmp(rdm->DestID, _devID) == 0) {
packetIsForMe = true;
} // if
if ((! packetIsForMe) && (! packetIsForGroup) && (! packetIsForAll)) {
// ignore this packet
} else if (CmdClass == E120_DISCOVERY_COMMAND) { // 0x10
// handle all Discovery commands locally
if (Parameter == SWAPINT(E120_DISC_UNIQUE_BRANCH)) { // 0x0001
// not tested here for pgm space reasons: rdm->Length must be 24+6+6 = 36
// not tested here for pgm space reasons: rdm->_DataLength must be 6+6 = 12
if (! _isMute) {
// check if my _devID is in the discovery range
if ((DeviceIDCmp(rdm->Data, _devID) <= 0) && (DeviceIDCmp(_devID, rdm->Data+6) <= 0)) {
// respond a special discovery message !
struct DISCOVERYMSG *disc = &_rdm.discovery;
_rdmCheckSum = 6 * 0xFF;
// fill in the _rdm.discovery response structure
for (byte i = 0; i < 7; i++)
disc->headerFE[i] = 0xFE;
disc->headerAA = 0xAA;
for (byte i = 0; i < 6; i++) {
disc->maskedDevID[i+i] = _devID[i] | 0xAA;
disc->maskedDevID[i+i+1] = _devID[i] | 0x55;
_rdmCheckSum += _devID[i];
}
disc->checksum[0] = (_rdmCheckSum >> 8) | 0xAA;
disc->checksum[1] = (_rdmCheckSum >> 8) | 0x55;
disc->checksum[2] = (_rdmCheckSum & 0xFF) | 0xAA;
disc->checksum[3] = (_rdmCheckSum & 0xFF) | 0x55;
// disable all interrupt routines and send the _rdm.discovery packet
// now send out the _rdm.buffer without a starting BREAK.
_DMXSerialBaud(Calcprescale(DMXSPEED), DMXFORMAT);
UCSRnB = (1<<TXENn); // no interrupts !
// delayMicroseconds(50); // ??? 180
digitalWrite(_dmxModePin, _dmxModeOut); // data Out direction
unsigned int _rdmBufferLen = sizeof(_rdm.discovery);
for (unsigned int i = 0; i < _rdmBufferLen; i++) {
UDRn = _rdm.buffer[i];
UCSRnA= (1<<TXCn);
loop_until_bit_is_set(UCSRnA, TXCn);
} // for
digitalWrite(_dmxModePin, _dmxModeIn); // data Out direction
// Re-enable receiver and Receive interrupt
_dmxState= IDLE; // initial state
UCSRnB = (1<<RXENn) | (1<<RXCIEn);
_DMXSerialBaud(Calcprescale(DMXSPEED), DMXFORMAT); // Enable serial reception with a 250k rate
} // if
} // if
} else if (Parameter == SWAPINT(E120_DISC_UN_MUTE)) { // 0x0003
isHandled = true;
if (packetIsForMe) { // 05.12.2013
if (_rdm.packet.DataLength > 0) {
// Unexpected data
// Do nothing
} else {
_isMute = false;
// Control field
_rdm.packet.Data[0] = 0b00000000;
_rdm.packet.Data[1] = 0b00000000;
_rdm.packet.DataLength = 2;
respondMessage(true); // 21.11.2013
}
}
} else if (Parameter == SWAPINT(E120_DISC_MUTE)) { // 0x0002
isHandled = true;
if (packetIsForMe) { // 05.12.2013
if (_rdm.packet.DataLength > 0) {
// Unexpected data
// Do nothing
} else {
_isMute = true;
// Control field
_rdm.packet.Data[0] = 0b00000000;
_rdm.packet.Data[1] = 0b00000000;
_rdm.packet.DataLength = 2;
respondMessage(true); // 21.11.2013
}
}
} // if
} else {
