private static void TestI2C()
{
NativeMethods.Init_libMPSSE();
FTDI.FT_STATUS status;
uint channelCount = 0;
status = I2C.NativeMethods_I2C.I2C_GetNumChannels(out channelCount);
if (status != FTDI.FT_STATUS.FT_OK)
{
throw new InvalidOperationException("Unable to find number of I2C channels. (Status: " + status + ")");
}
var infoNode = new NativeMethods.FT_DEVICE_LIST_INFO_NODE();
status = I2C.NativeMethods_I2C.I2C_GetChannelInfo(0, infoNode);
if (status != FTDI.FT_STATUS.FT_OK)
{
throw new InvalidOperationException("Unable to open I2C channel. (Status: " + status + ")");
}
IntPtr i2cHandle;
status = I2C.NativeMethods_I2C.I2C_OpenChannel(0, out i2cHandle);
if (status != FTDI.FT_STATUS.FT_OK)
{
throw new InvalidOperationException("Unable to open I2C channel. (Status: " + status + ")");
}
var config = new I2C.NativeMethods_I2C.ChannelConfig(I2C.NativeMethods_I2C.ClockRate.Standard, 1, I2C.NativeMethods_I2C.ConfigOptions.None);
status = I2C.NativeMethods_I2C.I2C_InitChannel(i2cHandle, config);
if (status != FTDI.FT_STATUS.FT_OK)
{
throw new InvalidOperationException("Unable to initialize I2C channel. (Status: " + status + ")");
}
byte gpioState;
status = NativeMethods.FT_ReadGPIO(i2cHandle, out gpioState);
if (status != FTDI.FT_STATUS.FT_OK)
{
throw new InvalidOperationException("Unable to open I2C channel. (Status: " + status + ")");
}
status = I2C.NativeMethods_I2C.I2C_CloseChannel(i2cHandle);
i2cHandle = IntPtr.Zero;
if (status != FTDI.FT_STATUS.FT_OK)
{
throw new InvalidOperationException("Unable to close I2C channel. (Status: " + status + ")");
}
NativeMethods.Cleanup_libMPSSE();
return;
}
private static void TestSPI()
{
NativeMethods.Init_libMPSSE();
FTDI.FT_STATUS status;
uint channelCount = 0;
status = SPI.NativeMethods_SPI.SPI_GetNumChannels(out channelCount);
if (status != FTDI.FT_STATUS.FT_OK)
{
throw new InvalidOperationException("Unable to find number of SPI channels. (Status: " + status + ")");
}
var infoNode = new NativeMethods.FT_DEVICE_LIST_INFO_NODE();
status = SPI.NativeMethods_SPI.SPI_GetChannelInfo(0, infoNode);
if (status != FTDI.FT_STATUS.FT_OK)
{
throw new InvalidOperationException("Unable to open SPI channel. (Status: " + status + ")");
}
IntPtr spiHandle;
status = SPI.NativeMethods_SPI.SPI_OpenChannel(0, out spiHandle);
if (status != FTDI.FT_STATUS.FT_OK)
{
throw new InvalidOperationException("Unable to open SPI channel. (Status: " + status + ")");
}
var configOptions = SPI.NativeMethods_SPI.ConfigOptions.SPI_CONFIG_OPTION_MODE3 |
SPI.NativeMethods_SPI.ConfigOptions.SPI_CONFIG_OPTION_CS_DBUS3 |
SPI.NativeMethods_SPI.ConfigOptions.SPI_CONFIG_OPTION_CS_ACTIVELOW;
var config = new SPI.NativeMethods_SPI.ChannelConfig(100000, 1, configOptions, 0);
status = SPI.NativeMethods_SPI.SPI_InitChannel(spiHandle, config);
if (status != FTDI.FT_STATUS.FT_OK)
{
throw new InvalidOperationException("Unable to initialize SPI channel. (Status: " + status + ")");
}
var transferOptions = SPI.NativeMethods_SPI.TransferOptions.SPI_TRANSFER_OPTIONS_SIZE_IN_BYTES |
SPI.NativeMethods_SPI.TransferOptions.SPI_TRANSFER_OPTIONS_CHIPSELECT_ENABLE |
SPI.NativeMethods_SPI.TransferOptions.SPI_TRANSFER_OPTIONS_CHIPSELECT_DISABLE;
var buffer = new byte[] { 0xFF };
uint bytesTransferred = 0;
status = SPI.NativeMethods_SPI.SPI_Write(spiHandle, buffer, 1, out bytesTransferred, transferOptions);
Thread.Sleep(1);
//byte gpioState;
//status = NativeMethods.FT_ReadGPIO(spiHandle, out gpioState);
//if (status != FTDI.FT_STATUS.FT_OK)
//{
// throw new InvalidOperationException("Unable to open SPI channel. (Status: " + status + ")");
//}
status = SPI.NativeMethods_SPI.SPI_CloseChannel(spiHandle);
spiHandle = IntPtr.Zero;
if (status != FTDI.FT_STATUS.FT_OK)
{
throw new InvalidOperationException("Unable to close SPI channel. (Status: " + status + ")");
}
NativeMethods.Cleanup_libMPSSE();
return;
}
