public void VerifyData(int addr, byte[] data, int offset, int count)
{
SetAddress(addr);
var cmd = new byte[] { (byte)'t', 0, 0, 0, (byte)' ' };
var lenbytes = BitConverter.GetBytes((ushort)count);
cmd[1] = lenbytes[1];
cmd[2] = lenbytes[0];
_device.WriteFully(cmd, 0, 5);
_device.ReadFully(cmd, 0, 1);
if (cmd[0] != 0x14)
{
throw new InvalidDataException("Expected start of data byte");
}
var state = new byte[count];
_device.ReadFully(state, 0, count);
for (int i = 0; i < count; i++)
{
if (state[i] != data[offset + i])
{
throw new InvalidDataException("Invalid data on flash at offset 0x" + addr.ToString("X") + "+" + i.ToString("X") + ": is: 0x" + state[i].ToString("X") + " should be: 0x" + data[offset + i].ToString("X"));
}
}
_device.ReadFully(cmd, 0, 1);
if (cmd[0] != 0x10)
{
throw new InvalidDataException("Expected end of data byte");
}
}
public void TestBootload()
{
using (_device = FTDevice.Open())
{
// reset device
_device.SetBitMode(FTBitMode.CBUSBitBang, 0xF0);
Thread.Sleep(10);
_device.SetBitMode(FTBitMode.CBUSBitBang, 0xFF);
Thread.Sleep(100);
// empty any possible leftover data in the rx/tx queue
// this is necessary because the serialtest program is blasting the usart with data
// and some of it lives on after the reset in the ft queues
_device.Purge();
_device.SetFlowControl(FTFlowControl.None);
_device.SetDataCharacteristics(8, 1, FTParity.None);
_device.SetBaudRate(19200);
SendHELO();
ReceiveEHLO();
EnterProgrammingMode();
ParseHEX("serialtest.hex");
WriteImage();
VerifyImage();
LeaveProgrammingMode();
_device.SetBaudRate(38400);
_device.WaitFor(FTEvent.RxChar);
var msg = new byte[10];
_device.ReadFully(msg, 0, 10);
var text = Encoding.ASCII.GetString(msg);
Assert.AreEqual("serialtest", text);
}
}
public void TestResetWriteRead()
{
using (FTDevice dev = FTDevice.Open(0))
{
// reset
dev.SetBitMode(FTBitMode.CBUSBitBang, 0xF0);
Thread.Sleep(10);
dev.SetBitMode(FTBitMode.CBUSBitBang, 0xFF);
// allow some time for startup
Thread.Sleep(100);
// send hello to bootloader
dev.SetBaudRate(19200);
var data = new[] { (byte)'1', (byte)' ' };
dev.WriteFully(data, 0, 2);
// read ehlo
var buf = new byte[9];
int r = dev.ReadFully(buf, 0, 9);
Assert.AreEqual(9, r);
var text = Encoding.ASCII.GetString(buf);
Assert.IsTrue(text.Contains("AVR ISP"));
}
}
