protected byte[] ReadRAW(int cmd, int addr)
{
if (this.IsOpen())
{
byte[] buff = new byte[64];
byte[] buffer = new byte[64];
uint numbytes = 0;
int i;
int nbytes = 0;
USBXpress.ReturnCodes ret = USBXpress.ReturnCodes.SI_SUCCESS;
ClearInputBuffer(handle);
buffer[0] = (byte)'F';
buffer[1] = (byte)'R';
buffer[2] = (byte)'M';
buffer[3] = (byte)cmd;
buffer[4] = (byte)(addr & 0xff);
buffer[5] = (byte)((addr >> 8) & 0xff);
for (i = 4; i < 64; i++)
{
buffer[i] = 0;
}
usbXpress.SI_Write(handle, buffer, OLEN, ref nbytes, 0);
USBXpress.RXQueueStatus queueStatus = USBXpress.RXQueueStatus.SI_RX_EMPTY;
numbytes = 0;
for (i = 0; i < 50 && numbytes < ILEN; i++)
{
usbXpress.SI_CheckRXQueue(handle, ref numbytes, ref queueStatus);
Thread.Sleep(20);
}
ret = usbXpress.SI_Read(handle, buffer, 64, ref nbytes, 0);
for (i = 0; i < 64; i++)
{
buff[i] = buffer[i];
}
if (ret != USBXpress.ReturnCodes.SI_SUCCESS)
{
isOpen = false;
}
return(buff);
}
else
{
return(null);
}
}
public void ClearInputBuffer(UInt32 handle)
{
USBXpress.RXQueueStatus queueStatus = USBXpress.RXQueueStatus.SI_RX_EMPTY;
uint unumbytes = 0;
int numbytes;
do
{
usbXpress.SI_CheckRXQueue(handle, ref unumbytes, ref queueStatus);
numbytes = (int)unumbytes;
usbXpress.SI_Read(handle, new byte[numbytes], numbytes, ref numbytes, 0);
} while (queueStatus != USBXpress.RXQueueStatus.SI_RX_EMPTY);
}
protected void WaitACK_USB()
{
uint numbytes = 0;
byte[] buffer = new byte[OLEN];
int nbytes = 0;
USBXpress.RXQueueStatus queueStatus = USBXpress.RXQueueStatus.SI_RX_EMPTY;
int i;
for (i = 0; i < 20 && numbytes != ILEN; i++)
{
usbXpress.SI_CheckRXQueue(handle, ref numbytes, ref queueStatus);
Thread.Sleep(5);
}
if (numbytes == ILEN)
{
usbXpress.SI_Read(handle, buffer, 64, ref nbytes, 0);
}
}
public USBXpress.ReturnCodes SI_CheckRXQueue(UInt32 cyHandle, ref UInt32 lpdwNumBytesInQueue, ref USBXpress.RXQueueStatus lpdwQueueStatus)
{
if (tipo == TypeOS.i64)
{
return(USBXpress64.SI_CheckRXQueue(cyHandle, ref lpdwNumBytesInQueue, ref lpdwQueueStatus));
}
else
{
return(USBXpress32.SI_CheckRXQueue(cyHandle, ref lpdwNumBytesInQueue, ref lpdwQueueStatus));
}
}
public static extern USBXpress.ReturnCodes SI_CheckRXQueue(UInt32 cyHandle, ref UInt32 lpdwNumBytesInQueue, ref USBXpress.RXQueueStatus lpdwQueueStatus);
public byte[] Read(int cmd, byte id, int offset, int len)
{
if (this.IsOpen())
{
byte[] buff = new byte[len];
byte[] buffer = new byte[64];
const int max_payload = 64; // 64 (long paquete)
uint numbytes = 0;
int nbytes = 0;
USBXpress.ReturnCodes ret = USBXpress.ReturnCodes.SI_SUCCESS;
ClearInputBuffer(handle);
for (int j = 0; j < buff.Length; j += max_payload)
{
buffer[0] = (byte)'A';
buffer[1] = (byte)'T';
buffer[2] = (byte)'C';
buffer[3] = (byte)cmd;
buffer[4] = (byte)id;
buffer[5] = (byte)j;
if (len - j > max_payload)
{
buffer[6] = (byte)max_payload;
}
else
{
buffer[6] = (byte)(len - j);
}
for (int i = 7; i < 64; i++)
{
buffer[i] = 0;
}
usbXpress.SI_Write(handle, buffer, OLEN, ref nbytes, 0);
USBXpress.RXQueueStatus queueStatus = USBXpress.RXQueueStatus.SI_RX_EMPTY;
numbytes = 0;
for (int i = 0; i < 100 && numbytes < ILEN; i++)
{
usbXpress.SI_CheckRXQueue(handle, ref numbytes, ref queueStatus);
Thread.Sleep(10);
}
if (numbytes >= ILEN)
{
ret = usbXpress.SI_Read(handle, buffer, 64, ref nbytes, 0);
for (int i = 0; i < 64 && i + j < len; i++)
{
buff[j + i] = buffer[i];
}
}
}
if (ret != USBXpress.ReturnCodes.SI_SUCCESS)
{
isOpen = false;
}
return(buff);
}
else
{
return(null);
}
}