private void i2cQueryButton_Click(object sender, EventArgs e)
{
byte i2cAddr = 0;
byte regAddr = 0;
byte numOfBytes = 0;
string inputStr = i2cAddrTextBox.Text;
string[] strAry = null;
string ipstr = ipAddrTextBox.Text;
string gpibAddr = "inst30";
string resp;
VXI11Class remote_inst = new VXI11Class(gpibAddr, ipstr);
if (inputStr == string.Empty)
{
return;
}
if (inputStr.Contains(@"/"))
{
strAry = inputStr.Split(new char[] { '/' });
i2cAddr = Convert.ToByte(strAry[strAry.Length - 1], 16);
}
else
{
i2cAddr = Convert.ToByte(inputStr);
}
Console.WriteLine("i2c addr: " + i2cAddr.ToString());
//
inputStr = i2cRegisterTextBox.Text;
if (inputStr == string.Empty)
{
return;
}
if (inputStr.Contains(@"/"))
{
strAry = inputStr.Split(new char[] { '/' });
regAddr = Convert.ToByte(strAry[strAry.Length - 1], 16);
}
else
{
regAddr = Convert.ToByte(inputStr);
}
Console.WriteLine("i2c register: " + regAddr.ToString());
inputStr = i2cNumOfBytesTextBox.Text;
if (inputStr == string.Empty)
{
return;
}
if (inputStr.Contains(@"/"))
{
strAry = inputStr.Split(new char[] { '/' });
numOfBytes = Convert.ToByte(strAry[strAry.Length - 1], 16);
}
else
{
numOfBytes = Convert.ToByte(inputStr);
}
Console.WriteLine("number of bytes I2C read: " + numOfBytes.ToString());
byte[] data = new byte[numOfBytes];
i2cRespTextBox.AppendText("i2c read->addr: " + i2cAddr.ToString() + ", reg: " + regAddr.ToString() + "\r\n");
if (numOfBytes > 255)
{
i2cRespTextBox.AppendText(numOfBytes.ToString() + " bytes is greater than max 255 allowed" + "\r\n");
remote_inst.close();
return;
}
try
{
remote_inst.readI2c(i2cAddr, regAddr, Convert.ToByte(numOfBytes), ref data);
}
catch (Exception ex)
{
resp = ex.Message;
i2cRespTextBox.AppendText(resp + "\r\n");
remote_inst.close();
return;
}
for (int j = 0; j < numOfBytes; j++)
{
resp = j.ToString() + ": " + String.Format("0x{0:X}", data[j]);
i2cRespTextBox.AppendText(resp + "\r\n");
}
i2cRespTextBox.AppendText("\r\n");
remote_inst.close();
i2cComboBox.Items.Add(inputStr);
}