public void ResetDevice(bool r)
{
using (_lockFactory.GetLock(LockType.CommandLock))
{
_evalBoard.DeviceState.ClearRegisterCache();
byte[] buffer = { (byte)(r ? 1 : 0) };
_usbControlTransferCommand.UsbControlTransfer(
(byte)UsbRequestType.TypeVendor,
0xA0,
0xE600,
0,
buffer,
buffer.Length);
Thread.Sleep(r ? 50 : 400); // give the firmware some time for initialization
}
}
public void SendDeviceCommand(DeviceCommand deviceCommand, uint setupData)
{
using (_lockFactory.GetLock(LockType.CommandLock))
{
if (!_evalBoard.DeviceState.SPI_Initialized && deviceCommand != DeviceCommand.InitializeSPIPins)
{
_initializeSPIPinsCommand.InitializeSPIPins();
}
_usbControlTransferCommand.UsbControlTransfer(
(byte)UsbRequestType.TypeVendor,
(byte)deviceCommand,
(ushort)(setupData & (uint)BasicMasks.SixteenBits),
(ushort)((setupData & 0xFF0000) / 0x10000),
null,
0);
}
}
public void UploadFirmware(IhxFile ihxFile)
{
using (_lockFactory.GetLock(LockType.CommandLock))
{
const int transactionBytes = 256;
var buffer = new byte[transactionBytes];
_resetDeviceCommand.ResetDevice(true); // reset = 1
var j = 0;
for (var i = 0; i <= ihxFile.IhxData.Length; i++)
{
if (i >= ihxFile.IhxData.Length || ihxFile.IhxData[i] < 0 || j >= transactionBytes)
{
if (j > 0)
{
_usbControlTransferCommand.UsbControlTransfer(
(byte)UsbRequestType.TypeVendor,
0xA0,
i - j,
0,
buffer,
j);
Thread.Sleep(1); // to avoid package loss
}
j = 0;
}
if (i >= ihxFile.IhxData.Length || ihxFile.IhxData[i] < 0 || ihxFile.IhxData[i] > 255)
{
continue;
}
buffer[j] = (byte)ihxFile.IhxData[i];
j += 1;
}
_resetDeviceCommand.ResetDevice(false); //error (may caused re-numeration) can be ignored
}
}
public ushort ReadSPI()
{
using (_lockFactory.GetLock(LockType.CommandLock))
{
if (!_evalBoard.DeviceState.SPI_Initialized)
{
_initializeSPIPinsCommand.InitializeSPIPins();
}
const ushort len = 3;
var buf = new byte[len];
_usbControlTransferCommand.UsbControlTransfer(
(byte)UsbRequestType.TypeVendor | (byte)UsbCtrlFlags.Direction_In,
(byte)DeviceCommand.SendSPI,
0,
0,
buf,
len
);
return((ushort)(buf[0] | (buf[1] << 8)));
}
}
