/// <summary>
/// Initialize the brick including SPI communication
/// </summary>
/// <param name="spiAddress">The Spi Address of the brick</param>
/// <param name="busId">The bus id that the device is connected to</param>
/// <param name="ChipSelectLine">The chip select line that the device is connected to</param>
public Brick(byte spiAddress = 1, int busId = 0, int ChipSelectLine = 1)
{
try
{
SpiAddress = spiAddress;
// SPI 0 is used on Raspberry with ChipSelectLine 1
var settings = new SpiConnectionSettings(busId, ChipSelectLine);
// 500K is the SPI communication with the brick
settings.ClockFrequency = 500000;
// see http://tightdev.net/SpiDev_Doc.pdf
settings.Mode = SpiMode.Mode0;
settings.DataBitLength = 8;
// as the SPI is a static, checking if it has already be initialised
if (_brickPiSPI == null)
{
_brickPiSPI = SpiDevice.Create(settings);
}
BrickPi3Info = new BrickPiInfo();
BrickPi3Info.Manufacturer = GetManufacturer();
BrickPi3Info.Board = GetBoard();
BrickPi3Info.HardwareVersion = GetHardwareVersion();
BrickPi3Info.SoftwareVersion = GetFirmwareVersion();
BrickPi3Info.Id = GetId();
}
catch (Exception ex) when(ex is IOException)
{
Debug.Write($"Exception: {ex.Message}");
}
}
/// <summary>
/// Initialize the brick including SPI communication
/// </summary>
/// <param name="spiAddress">The Spi Address of the brick</param>
/// <param name="busId">The bus id that the device is connected to</param>
/// <param name="ChipSelectLine">The chip select line that the device is connected to</param>
public Brick(byte spiAddress = 1, int busId = 0, int ChipSelectLine = 1)
{
SpiAddress = spiAddress;
// SPI 0 is used on Raspberry with ChipSelectLine 1
var settings = new SpiConnectionSettings(busId, ChipSelectLine);
// 500K is the SPI communication with the brick
settings.ClockFrequency = 500000;
// see http://tightdev.net/SpiDev_Doc.pdf
settings.Mode = SpiMode.Mode0;
settings.DataBitLength = 8;
_brickPiSPI = SpiDevice.Create(settings);
BrickPi3Info = new BrickPiInfo(
GetManufacturer(),
GetBoard(),
GetHardwareVersion(),
GetFirmwareVersion(),
GetId());
}
private async Task InitSPI_async(byte spi_address = 1)
{
try
{
SPI_Address = spi_address;
var settings = new SpiConnectionSettings(CHIP_SELECT_lINE);
settings.ClockFrequency = 500000; /* 500K */
settings.Mode = SpiMode.Mode0; //http://tightdev.net/SpiDev_Doc.pdf
settings.DataBitLength = 8;
settings.SharingMode = SpiSharingMode.Exclusive;
// as the SPI is a static, checking if it has already be initialised
if (BrickPiSPI == null)
{
string aqs = SpiDevice.GetDeviceSelector(); /* Get a selector string that will return all SPI controllers on the system */
var dis = await DeviceInformation.FindAllAsync(aqs); /* Find the SPI bus controller devices with our selector string */
BrickPiSPI = await SpiDevice.FromIdAsync(dis[0].Id, settings); /* Create an SpiDevice with our bus controller and SPI settings */
if (BrickPiSPI == null)
{
Debug.WriteLine(string.Format(
"SPI Controller {0} is currently in use by " +
"another application. Please ensure that no other applications are using SPI.",
dis[0].Id));
return;
}
}
BrickPi3Info = new BrickPiInfo();
BrickPi3Info.Manufacturer = get_manufacturer();
BrickPi3Info.Board = get_board();
BrickPi3Info.HardwareVersion = get_version_hardware();
BrickPi3Info.SoftwareVersion = get_version_firmware();
BrickPi3Info.Id = get_id();
}
catch (Exception ex)
{
Debug.Write($"Exception: {ex.Message}");
}
}
