/// <summary>
/// 关闭设备
/// </summary>
/// <returns></returns>
public bool closeDevice()
{
int temp = VCI_GYI2C.GYI2C_Close(deviceType, deviceInd);
if (temp == 1)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 打开设备
/// </summary>
/// <returns></returns>
public bool openDevice()
{
int temp = VCI_GYI2C.GYI2C_Open(deviceType, deviceInd, 115200);
if (temp == 1)
{
return(true);
}
else
{
return(false);
}
}
private int writeBytes(byte SlaveAddr, int writeSize, int startAddress, int ClkValue, byte[] writeBuffer)
{
int writeBufferLength = writeBuffer.Length;
int writeTimes = writeBufferLength / writeSize;
int writeMod = writeBufferLength % writeSize;
if (writeMod > 0)
{
writeTimes = writeTimes + 1;
}
int writeCount = 0;
for (int i = 0; i < writeTimes; i++)
{
GYI2C_DATA_INFO pDataInfo = new GYI2C_DATA_INFO();
pDataInfo.IoData = IoData;
pDataInfo.IoSel = IoSel;
pDataInfo.SlaveAddr = SlaveAddr;
pDataInfo.Databuffer = new byte[520];
pDataInfo.Reserved = new byte[4] {
0, 0, 0, 0
};
pDataInfo.Databuffer[0] = (byte)(i * writeSize + startAddress);
int writeLength = (writeSize < writeBufferLength - i * writeSize) ? writeSize : writeBufferLength - i * writeSize;
for (int j = 0; j < writeLength; j++)
{
pDataInfo.Databuffer[j + 1] = writeBuffer[i * writeSize + j];
}
pDataInfo.ReadNum = 0;
pDataInfo.DlyMsRead = 10 * (writeSize + 20) / ClkValue; //留一点余量
pDataInfo.WriteNum = writeLength + 1;
int len = VCI_GYI2C.GYI2C_Write(deviceType, deviceInd, ref pDataInfo);
writeCount = writeCount + len;
if (len != 1)
{
break;
}
}
return(writeCount);
}
private int readBytes(byte SlaveAddr, int readSize, int startAddress, int ClkValue, ref byte[] readBuffer)
{
GYI2C_DATA_INFO pDataInfo = new GYI2C_DATA_INFO();
pDataInfo.IoData = IoData;
pDataInfo.IoSel = IoSel;
pDataInfo.SlaveAddr = SlaveAddr;
pDataInfo.Databuffer = new byte[520];
pDataInfo.Databuffer[0] = (byte)startAddress;
pDataInfo.ReadNum = readSize;
pDataInfo.DlyMsRead = 10 / ClkValue * (pDataInfo.ReadNum + 20); //留一点余量
pDataInfo.WriteNum = 1;
int len = VCI_GYI2C.GYI2C_Read(deviceType, deviceInd, ref pDataInfo);
if (len > 0)
{
Array.Copy(pDataInfo.Databuffer, readBuffer, len);
}
return(len);
}
///<summary>
/// 写入数据
/// </summary>
/// <param name="slaveAdd">器件地址</param>
/// <param name="startWriteAdd"></param>
/// <param name="channel"></param>
/// <param name="writeLen"></param>
/// <param name="writeBuffer"></param>
/// <returns></returns>
public operationResult writeDevice(byte slaveAdd, byte startWriteAdd, byte channel, int writeLen, byte[] writeBuffer)
{
operationResult oR = new operationResult();
int ClkValue = GYI2C_GetClk(deviceType, deviceInd);
int ChValue = channel;
int temp = VCI_GYI2C.GYI2C_SetChannel(deviceType, deviceInd, ChValue);
if (temp == 0)
{
oR.result = false;
oR.msg = "fail to set channel" + ChValue.ToString();
}
else if (temp == -1)
{
oR.result = false;
oR.msg = "device is not open";
}
else
{
//temp = 1;
int writedLen = writeBytes(slaveAdd, writeBlock, startWriteAdd, ClkValue, writeBuffer);
if (writedLen == writeBuffer.Length)
{
oR.result = true;
oR.msg = "write success";
}
else if (writeLen < 0)
{
oR.result = false;
oR.msg = "device is not open!";
}
else
{
oR.result = false;
oR.msg = "write fail";
}
}
return(oR);
}
/// <summary>
/// 读取数据
/// </summary>
/// <param name="slaveAdd">器件地址</param>
/// <param name="startReadAdd">起始位置</param>
/// <param name="channel">通道</param>
/// <param name="readLen">读取长度</param>
/// <returns></returns>
public operationResult readDevice(byte slaveAdd, byte startReadAdd, byte channel, byte readLen)
{
operationResult oR = new operationResult();
int ClkValue = GYI2C_GetClk(deviceType, deviceInd);
int ChValue = channel;
int temp = VCI_GYI2C.GYI2C_SetChannel(deviceType, deviceInd, ChValue);
if (temp == 0)
{
oR.result = false;
oR.msg = "fail to set channel" + ChValue.ToString() + " !";
}
else if (temp == -1)
{
oR.result = false;
oR.msg = "device is not open!";
}
else
{
//temp = 1;
byte[] readBuffer = new byte[readLen];
int readBufferLength = readBytes(slaveAdd, readLen, startReadAdd, ClkValue, ref readBuffer);
if (readBufferLength == readLen)
{
oR.result = true;
oR.msg = "read success";
oR.bufferData = readBuffer;
}
else
{
oR.result = false;
oR.msg = "read fail";
}
}
return(oR);
}
