private void pe2a_mcp23s17_tr(byte device, byte txdata)
{
_bcm2835.bcm2835_gpio_write(Gpio_AI_CS3, Bcm2835.HIGH);
_bcm2835.bcm2835_spi_chipSelect((byte)Bcm2835.bcm2835SPIChipSelect.BCM2835_SPI_CS1);
_bcm2835.bcm2835_spi_setChipSelectPolarity((byte)Bcm2835.bcm2835SPIChipSelect.BCM2835_SPI_CS1, Bcm2835.LOW);
var do_tbuf = new byte[3];
device = (byte)(device & 0xfe); // Clear last bit for a write
do_tbuf[0] = device;
do_tbuf[1] = setGPIOAorB; //from coming global val.
do_tbuf[2] = txdata;
_bcm2835.bcm2835_spi_transfern(do_tbuf, (uint)do_tbuf.Length);
}
static int Main(string[] args)
{
// Will extract (from embedded resource) and compile the library
// if it doesn't exist in the same directory as LibBcm2835.dll.
Bcm2835.ExtractAndCompileLibraryIfNotExists();
// Grabbing the instance will dynamically load the libbcm2835.so
// library, so make sure it's there before accessing this property.
Bcm2835 bcm2835 = Bcm2835.Instance;
// If you call this, it will not actually access the GPIO
// Use for testing
// bcm2835.bcm2835_set_debug(1);
if (bcm2835.bcm2835_init() == 0)
{
return(1);
}
// Set the pin to be an output
bcm2835.bcm2835_gpio_fsel(pin, Bcm2835.HIGH);
while (true)
{
// Turn it on
bcm2835.bcm2835_gpio_write(pin, Bcm2835.HIGH);
// wait a bit
bcm2835.bcm2835_delay(500);
// turn it off
bcm2835.bcm2835_gpio_write(pin, Bcm2835.LOW);
// wait a bit
bcm2835.bcm2835_delay(500);
}
bcm2835.bcm2835_close();
return(0);
}
