SPI.transfer, one byte or many?

Projects Programming
1

I'm having trouble with an SPI device so thought that I would go back to basics and check the reference.
However the Arduino website states "Transfers one byte over the SPI bus, both sending and receiving. " (SPI - Arduino Reference). Then on http://arduino.cc/en/Tutorial/SPIDigitalPot it gives the following example:

void digitalPotWrite(int address, int value) {
digitalWrite(slaveSelectPin,LOW);
SPI.transfer(address);
SPI.transfer(value);
digitalWrite(slaveSelectPin,HIGH);
}

The single SPI.transfer command is transferring two bytes (an integer). If I had a device that needed several parameters could I pass an array to the SPI.transfer and it would cycle through the elements?

2

If I had a device that needed several parameters could I pass an array to the SPI.transfer and it would cycle through the elemen

No.

3

Does this mean that SPI.transfer will only transfer one byte of an integer and not the whole integer (2 bytes) if it is passed as a parameter (as in the example on the Arduino website)?

4

Does this mean that SPI.transfer will only transfer one byte of an integer and not the whole integer (2 bytes) if it is passed as a parameter (as in the example on the Arduino website)?

Yes, it does. The examples are not necessarily created by professional programmers. Nor, are they peer reviewed before posting. Nor are they ever corrected when errors are pointed out.