/// <summary>
/// 打开IIC
/// </summary>
/// <returns></returns>
public static bool IICOpen(bool bOpen)
{
// 如果已经打开IIC, 则返回false
if (bOpen)
{
return(false);
}
// 尝试打开IIC设备
uint val_Handle;
try
{
val_Handle = USBIOComm.USBIO_OpenDevice(0);
}
catch
{
// Please check if the file \"USBIOX.DLL\" and \"usbio.dll\" are in the root directory
return(false);
}
if (val_Handle == USBIOComm.INVALID_HANDLE_VALUE || val_Handle == 0)
{
// IIC detected failed!
return(false);
}
SetIICSpeed(true); // 打开高速模式, true为高速, false为低速
return(true);
}
public static bool IICWriteRead(UInt32 iIndex, UInt32 iWriteLength, UInt32 iWriteBuffer, UInt32 iReadLength,
UInt32 iReadBuffer)
{
bool bResult = USBIOComm.USBIO_StreamI2C(iIndex, iWriteLength, iWriteBuffer, iReadLength, iReadBuffer);
return(bResult);
}
private static bool IOConfig(int iPin, USBIOComm.IO_Cfg ioconfig)
{
bool bReturn = true;
//if (!g_bIOOpened)
// return false;
if ((iPin < 1) || (iPin > 10))
{
return(false);
}
switch (ioconfig)
{
case USBIOComm.IO_Cfg.IO_In:
USBIOComm.USB2IO_SetIoCfg(_hIOHandle, iPin, 0);
break;
case USBIOComm.IO_Cfg.IO_OD:
USBIOComm.USB2IO_SetIoCfg(_hIOHandle, iPin, 2);
break;
case USBIOComm.IO_Cfg.IO_Push:
USBIOComm.USB2IO_SetIoCfg(_hIOHandle, iPin, 3);
break;
default:
bReturn = false;
break;
}
return(bReturn);
}
/// <summary>
///
/// </summary>
/// <param name="bOpen"></param>
/// <returns></returns>
public static bool IICClose(bool bOpen)
{
// 如果打开则关闭
if (bOpen)
{
USBIOComm.USBIO_CloseDevice(0);
return(false);
}
return(true);
}
public static bool InitIO()
{
_hIOHandle = USBIOComm.USB2IO_Open(1);
if (_hIOHandle == USBIOComm.INVALID_HANDLE_VALUE)
{
return(false);
}
return(true);
}
public static void SetIICSpeed(bool bFast)
{
if (bFast)
{
USBIOComm.USBIO_SetStream(0, 0x81); // 0x81, 高速100KHz, 0X80, 低速20KHz
}
else
{
USBIOComm.USBIO_SetStream(0, 0x80); // 0x81, 高速100KHz, 0X80, 低速20KHz
}
}
private static bool IOSet(int iPin, int IOValue)
{
bool bReturn = true;
int iReturn = 0;
//if (!g_bIOOpened)
// return false;
iReturn = USBIOComm.USB2IO_SetIoOut(_hIOHandle, iPin, IOValue != 0 ? 1 : 0);
if (iReturn != 0)
{
bReturn = false;
}
return(bReturn);
}
public static bool DeInitIO()
{
USBIOComm.USB2IO_Close(_hIOHandle);
return(true);
}