Method computeNECRawDataAndChecksum

src/ir_NEC.hpp:157–173

* Convert 16 bit address and 16 bit command to 32 bit NECRaw data * If we get a command < 0x100, we send command and then ~command * If we get an address < 0x100, we send 8 bit address and then ~address * !!! Be aware, that this is flexible, but makes it impossible to send e.g. 0x0042 as 16 bit value!!! * To force send 16 bit address, use: sendOnkyo(). */

 * To force send 16 bit address, use: sendOnkyo().
 */
uint32_t IRsend::computeNECRawDataAndChecksum(uint16_t aAddress, uint16_t aCommand) {
    LongUnion tRawData;

    // Address 16 bit LSB first
    if ((aAddress & 0xFF00) == 0) {
        // assume 8 bit address -> send 8 address bits and then 8 inverted address bits LSB first
        tRawData.UByte.LowByte = aAddress;
        tRawData.UByte.MidLowByte = ~tRawData.UByte.LowByte;
    } else {
        tRawData.UWord.LowWord = aAddress;
    }

    // send 8 command bits and then 8 inverted command bits LSB first
    tRawData.UByte.MidHighByte = aCommand;
    tRawData.UByte.HighByte = ~aCommand;
    return tRawData.ULong;
}

/**
 * NEC Send frame and special repeats