======spi_read======
WMPRO, WMMINI FW >= 1.0 WMMEGA FW >= 2.0
Read a byte from the SPI bus
====Description====
int
spi_read ( )
====Parameter====
None
====Return Values====
An integer byte value read from the SPI bus (0-255)
====See Also====
[[spi_clearcs()]] - Clear the CS output of the SPI bus
[[spi_setcs()]] - Set the CS output of the SPI bus
[[spi_write()]] - Write a byte to the SPI bus