private void btnSendSR_Click(object sender, EventArgs e)
{
int cmd = Convert.ToInt32(txtSR.Text);
byte[] buf = BitConverter.GetBytes(cmd);
byte[] tempbuf = new byte[4];
if (buf.Length < 4)
{
return;
}
// put bytes in proper order MSB to LSB
for (int i = 0; i < buf.Length; i++)
{
tempbuf[buf.Length - 1 - i] = buf[i];
}
for (int i = 0; i < buf.Length; i++)
{
listBox1.Items.Add(buf[i]);
}
buf = tempbuf;
// send to OZY register 0x02, 32 bits
if (hdev != IntPtr.Zero)
{
OZY.Write_SPI(hdev, 0, 0x02, OZY.SPI_EN_FPGA, (OZY.SPI_FMT_MSB | OZY.SPI_FMT_HDR_1), buf);
}
}
private void hScrollBar2_Scroll(object sender, ScrollEventArgs e)
{
byte[] buf = BitConverter.GetBytes(hScrollBar2.Value); // gets 4 bytes
byte[] tempbuf = new byte[4];
if (buf.Length < 4)
{
return;
}
// put bytes in proper order MSB to LSB
for (int i = 0; i < buf.Length; i++)
{
tempbuf[buf.Length - 1 - i] = buf[i];
}
buf = tempbuf;
textBox1.Text = ((((float)hScrollBar2.Value * (float)100)) / (float)Math.Pow(2, 32)).ToString();
textBox2.Text = buf[0].ToString("X2")
+ ":" + buf[1].ToString("X2")
+ ":" + buf[2].ToString("X2")
+ ":" + buf[3].ToString("X2");
// send to OZY register 0x01, 32 bits
if (hdev != IntPtr.Zero)
{
OZY.Write_SPI(hdev, 0, 0x01, OZY.SPI_EN_FPGA, (OZY.SPI_FMT_MSB | OZY.SPI_FMT_HDR_1), buf);
}
}
// latch data into one of the PIO registers.
// addr needs to be on of the PIO_xxx constants
// returns true on success, false on failure
private bool LatchRegister(byte addr, byte data)
{
bool rc;
byte[] buf = new byte[1];
buf[0] = data;
rc = OZY.Write_SPI(usb_dev_handle, 0, ADDR_DATA, OZY.SPI_EN_FPGA, (OZY.SPI_FMT_MSB | OZY.SPI_FMT_HDR_1), buf);
if (!rc)
{
System.Console.WriteLine("Latch to ADDR_DATA failed\n");
return(false);
}
buf[0] = addr;
rc = OZY.Write_SPI(usb_dev_handle, 0, ADDR_CTRL, OZY.SPI_EN_FPGA, (OZY.SPI_FMT_MSB | OZY.SPI_FMT_HDR_1), buf);
if (!rc)
{
System.Console.WriteLine("Latch to ADDR_CTRL failed\n");
return(false);
}
buf[0] = PIO_NONE;
rc = OZY.Write_SPI(usb_dev_handle, 0, ADDR_CTRL, OZY.SPI_EN_FPGA, (OZY.SPI_FMT_MSB | OZY.SPI_FMT_HDR_1), buf);
if (!rc)
{
System.Console.WriteLine("Latch to ADDR_CTRL #2 failed\n");
return(false);
}
return(true);
}
bool writeDataSPI(IntPtr hdev, byte val)
{
bool rc;
byte[] buf = new byte[1];
buf[0] = val;
rc = OZY.Write_SPI(usb_dev_handle, 0, ADDR_DATA, OZY.SPI_EN_FPGA, (OZY.SPI_FMT_MSB | OZY.SPI_FMT_HDR_1), buf);
Console.WriteLine("WriteSPI rc: " + rc);
return(rc);
}
static void Main(string[] args)
{
if ((args.Length != 4) || (args.Length == 0))
{
Console.WriteLine("usage: write_SPI <VID> <PID> <address in hex> <value in hex>");
return;
}
if (args[0].Length > 2)
{
if (args[0].Substring(0, 2) != "0x")
{
Console.WriteLine("You must specify VID in Hex (0x0)");
return;
}
else
{
args[0] = args[0].Substring(2);
}
}
else
{
Console.WriteLine("You must specify VID in Hex (0x0)");
return;
}
int vid = int.Parse(args[0], NumberStyles.HexNumber);
if (args[1].Length > 2)
{
if (args[1].Substring(0, 2) != "0x")
{
Console.WriteLine("You must specify PID in Hex (0x0)");
return;
}
else
{
args[1] = args[1].Substring(2);
}
}
else
{
Console.WriteLine("You must specify PID in Hex (0x0)");
return;
}
int pid = int.Parse(args[1], NumberStyles.HexNumber);
if (args[2].Length > 2)
{
if (args[2].Substring(0, 2) != "0x")
{
Console.WriteLine("You must addr in Hex (0x0)");
return;
}
else
{
args[2] = args[2].Substring(2);
}
}
else
{
Console.WriteLine("You must specify addr in Hex (0x0)");
return;
}
int addr = int.Parse(args[2], NumberStyles.HexNumber);
if (args[3].Length > 2)
{
if (args[3].Substring(0, 2) != "0x")
{
Console.WriteLine("You must specify value in Hex (0x0)");
return;
}
else
{
args[3] = args[3].Substring(2);
}
}
else
{
Console.WriteLine("You must specify value in Hex (0x0)");
return;
}
int value = int.Parse(args[3], NumberStyles.HexNumber);
libUSB_Interface.usb_bus bus;
try
{
libUSB_Interface.usb_init();
Console.WriteLine("finding busses...");
libUSB_Interface.usb_find_busses();
Console.WriteLine("finding devices...");
libUSB_Interface.usb_find_devices();
Console.WriteLine("usb_get_busses...");
bus = libUSB_Interface.usb_get_busses();
Console.WriteLine("bus location: " + bus.location.ToString());
}
catch (Exception e)
{
Console.WriteLine("An error occurred: " + e.Message);
return;
}
Console.WriteLine("Checking for VID PID...");
libUSB_Interface.usb_device fdev = USB.FindDevice(bus, vid, pid);
if (fdev != null)
{
Console.WriteLine("Found VID PID: " + vid.ToString("x") + " " + pid.ToString("x"));
}
else
{
Console.WriteLine("did not find VID PID: " + vid.ToString("x") + " " + pid.ToString("x"));
return;
}
Console.WriteLine("Trying to open device...");
IntPtr usb_dev_handle;
try
{
usb_dev_handle = libUSB_Interface.usb_open(fdev);
Console.WriteLine("Device handle is: " + usb_dev_handle.ToString());
}
catch (Exception e)
{
Console.WriteLine("An error occurred: " + e.Message);
return;
}
byte[] buf = new byte[1];
addr = addr & 0x3F;
buf[0] = (byte)value;
if ((OZY.Write_SPI(usb_dev_handle, 0, (byte)addr, OZY.SPI_EN_FPGA, (OZY.SPI_FMT_MSB | OZY.SPI_FMT_HDR_1), buf)))
{
Console.WriteLine("Wrote to address: " + addr + " : " + value);
}
else
{
Console.WriteLine("Failed to write address: " + addr);
}
Console.WriteLine("Closing device...");
libUSB_Interface.usb_close(usb_dev_handle);
Console.WriteLine("done...");
}