public static int aa_spi_configure(int aardvark, AardvarkSpiPolarity polarity, AardvarkSpiPhase phase, AardvarkSpiBitorder bitorder)
{
if (!AA_LIBRARY_LOADED)
{
return(-4);
}
return(net_aa_spi_configure(aardvark, polarity, phase, bitorder));
}
private static extern int net_aa_spi_configure(int aardvark, AardvarkSpiPolarity polarity, AardvarkSpiPhase phase, AardvarkSpiBitorder bitorder);
private static extern int net_aa_spi_configure(int aardvark, AardvarkSpiPolarity polarity, AardvarkSpiPhase phase, AardvarkSpiBitorder bitorder);
/*
* These configuration parameters specify how to clock the
* bits that are sent and received on the Aardvark SPI
* interface.
*
* The polarity option specifies which transition
* constitutes the leading edge and which transition is the
* falling edge. For example, AA_SPI_POL_RISING_FALLING
* would configure the SPI to idle the SCK clock line low.
* The clock would then transition low-to-high on the
* leading edge and high-to-low on the trailing edge.
*
* The phase option determines whether to sample or setup on
* the leading edge. For example, AA_SPI_PHASE_SAMPLE_SETUP
* would configure the SPI to sample on the leading edge and
* setup on the trailing edge.
*
* The bitorder option is used to indicate whether LSB or
* MSB is shifted first.
*
* See the diagrams in the Aardvark datasheet for
* more details.
*/
// enum AardvarkSpiPolarity (from declaration above)
// AA_SPI_POL_RISING_FALLING = 0
// AA_SPI_POL_FALLING_RISING = 1
// enum AardvarkSpiPhase (from declaration above)
// AA_SPI_PHASE_SAMPLE_SETUP = 0
// AA_SPI_PHASE_SETUP_SAMPLE = 1
// enum AardvarkSpiBitorder (from declaration above)
// AA_SPI_BITORDER_MSB = 0
// AA_SPI_BITORDER_LSB = 1
/* Configure the SPI master or slave interface */
public static int aa_spi_configure(
int aardvark,
AardvarkSpiPolarity polarity,
AardvarkSpiPhase phase,
AardvarkSpiBitorder bitorder
)
{
if (!AA_LIBRARY_LOADED) return (int)AardvarkStatus.AA_INCOMPATIBLE_LIBRARY;
return net_aa_spi_configure(aardvark, polarity, phase, bitorder);
}
public static int aa_spi_configure(int aardvark, AardvarkSpiPolarity polarity, AardvarkSpiPhase phase, AardvarkSpiBitorder bitorder)
{
if (!AA_LIBRARY_LOADED)
{
return -4;
}
return net_aa_spi_configure(aardvark, polarity, phase, bitorder);
}
