private int _Mcp2221Write(byte devAddr, byte regAddr, byte length, byte[] data)
{
byte[] buf = new byte[length + 1];
buf[0] = regAddr;
Array.Copy(data, 0, buf, 1, length);
Mcp2221Api.Mcp2221I2cWriteApi(ipHandler, Convert.ToUInt32(length + 1), devAddr, 1, buf);
return(0);
}
private int _Mcp2221Read(byte devAddr, byte regAddr, byte length, byte[] data)
{
byte[] reg = { regAddr };
int result;
result = Mcp2221Api.Mcp2221I2cWriteApi(ipHandler, 1, devAddr, 1, reg);
if (result < 0)
{
return(result);
}
result = Mcp2221Api.Mcp2221I2cReadApi(ipHandler, length, devAddr, 1, data);
if (result < 0)
{
return(-3);
}
return(length);
}
private int _AardvarkRead16(byte devAddr, byte[] regAddr, byte length, byte[] data)
{
byte[] reg = { regAddr[0], regAddr[1] };
int result;
result = Mcp2221Api.Mcp2221I2cWriteApi(ipHandler, 2, devAddr, 1, reg);
if (result < 0)
{
return(-1);
}
result = Mcp2221Api.Mcp2221I2cReadApi(ipHandler, length, devAddr, 1, data);
if (result < 0)
{
return(-1);
}
return(length);
}
public int WriteRawApi(byte devAddr, byte length, byte[] data)
{
switch (as_atAdapterType)
{
case AdapterSelector.AdapterType.AS_AT_DUMMY:
break;
case AdapterSelector.AdapterType.AS_AT_AARDVARK:
if (iHandler <= 0)
{
if (ConnectApi() < 0)
{
MessageBox.Show("I2cMasterConnectApi() fail!!");
}
return(-1);
}
AardvarkApi.aa_i2c_write(iHandler, devAddr, AardvarkI2cFlags.AA_I2C_NO_FLAGS, length, data);
AardvarkApi.aa_sleep_ms(100);
return(0);
case AdapterSelector.AdapterType.AS_AT_MCP2221:
if (ipHandler == IntPtr.Zero)
{
if (ConnectApi() < 0)
{
MessageBox.Show("I2cMasterConnectApi() fail!!");
}
return(-1);
}
Mcp2221Api.Mcp2221I2cWriteApi(ipHandler, Convert.ToUInt32(length), devAddr, 1, data);
return(0);
default:
break;
}
return(0);
}