====== Spi ======

''InData = Spi(OutData, Bits)''
| //InData// |Input data  |
| //OutData// | Input data    |
| //Bits// | Number of bits (1 to 32)    |

This command sends and receives data simultaneously. In contrast, the
[[..:ShiftOut:]] and [[..:ShiftIn:]] commands only support either sending data
([[..:ShiftOut:]]) or receiving data ([[..:ShiftIn:]]), but not both. The ''Spi'' command
can be used on any I/O port.

The [[..:Set Spi:]] command must be used prior to the ''Sp''i command to ensure
the I/O ports are defined prior to sending or receiving data.

<code xbasic>
     Const Device = CB280
     Dim Dtin as Byte
     Set Spi 9,8,7,0 
     Dtin = Spi(Dtout,32)
</code>

For a more complete example, see the file //C:\Program Files (x86)\ComfileTools\CublocStudio\CM100A// in CUBLOC Studio's installation folder.

[[http://comfilewiki.co.kr/ko/doku.php?id=faq:faq12:index|The SPI clock frequency is 15kHz]].

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