public static void Scan(II2CBus bus)
{
if (bus == null)
{
throw new ArgumentNullException("bus");
}
int count = 0;
const int clockRateKhz = 100;
const int timeout = 100;
const byte startAddress = 0x08;
const byte endAddress = 127;
Debug.Print("Scanning I2C Bus for devices starting at: " + HexString.GetString(startAddress) + " ... ");
for (byte address = startAddress; address < endAddress; address++)
{
var configuration = new I2CDevice.Configuration(address, clockRateKhz);
var buffer = new byte[] {
0
};
bool canRead = bus.Read(configuration, buffer, timeout);
bool canWrite = bus.Write(configuration, buffer, timeout);
if (canRead || canWrite)
{
count++;
Debug.Print("Address: 0x" + HexString.GetString(address) + ", Read => " + canRead + ", Write => " + canWrite);
}
}
Debug.Print("Scanning ended at: " + HexString.GetString(endAddress));
Debug.Print("Scanning found " + count + " devices.");
}
private void SetPwm(byte num, ushort on, ushort off)
{
i2c.Write(i2caddr, new byte[] { (byte)(LED0_ON_L + 4 * num),
(byte)on,
(byte)(on >> 8),
(byte)(off),
(byte)(off >> 8) });
}
protected bool Write(byte[] writeBuffer)
{
lock (_bus) {
return(_bus.Write(_config, writeBuffer, _timeoutMilliseconds));
}
}