public static bool ReadHexAndDownload(string fileName, ref ushort pk2num)
{
try
{
FileInfo hexFile = new FileInfo(fileName);
TextReader hexRead = hexFile.OpenText();
byte[] flashWriteData = new byte[3 + 32]; // 3 address bytes plus 32 data bytes.
string fileLine = hexRead.ReadLine();
if (fileLine != null)
{
Pk2.EnterBootloader();
Pk2.ResetPk2Number();
Thread.Sleep(3000);
int i;
pk2num = 0;
for (i = 0; i < 10; i++)
{
if (Pk2.DetectPICkit2Device(pk2num, true) == Constants.PICkit2USB.bootloader)
{
if (Pk2.VerifyBootloaderMode())
{
break;
}
}
else
{
pk2num++; // look for PK2 with bootloader.
}
Thread.Sleep(500);
}
if (i == 10)
{
hexRead.Close();
return(false);
}
}
// erase PICkit 2 firmware flash
Pk2.BL_EraseFlash();
bool second16 = false;
while (fileLine != null)
{
if ((fileLine[0] == ':') && (fileLine.Length >= 11))
{ // skip line if not hex line entry,or not minimum length ":BBAAAATTCC"
int byteCount = Int32.Parse(fileLine.Substring(1, 2), System.Globalization.NumberStyles.HexNumber);
int fileAddress = Int32.Parse(fileLine.Substring(3, 4), System.Globalization.NumberStyles.HexNumber);
int recordType = Int32.Parse(fileLine.Substring(7, 2), System.Globalization.NumberStyles.HexNumber);
if ((second16) && ((fileAddress & 0x00000010) == 0))
{// if just moved to new 32-byte boundary.
Pk2.BL_WriteFlash(flashWriteData);
for (int x = 0; x < flashWriteData.Length; x++)
{ // clear array for skipped bytes in hex file
flashWriteData[x] = 0xFF;
}
}
second16 = ((fileAddress & 0x00000010) == 0x10);
if (recordType == 0)
{ // Data Record}
if ((fileAddress >= 0x2000) && (fileAddress < 0x7FE0))
{ // don't program 5555 key at last address until after verification.
if (!second16)
{
int rowAddress = fileAddress & 0xFFE0;
flashWriteData[0] = (byte)(rowAddress & 0xFF);
flashWriteData[1] = (byte)((rowAddress >> 8) & 0xFF);
flashWriteData[2] = 0x00; // address upper
}
if (fileLine.Length >= (11 + (2 * byteCount)))
{ // skip if line isn't long enough for bytecount.
int startByte = fileAddress & 0x000F;
int endByte = startByte + byteCount;
int offset = 3;
if (second16)
{
offset = 19;
}
for (int rowByte = 0; rowByte < 16; rowByte++)
{
if ((rowByte >= startByte) && (rowByte < endByte))
{
// get the byte value from hex file
uint wordByte = UInt32.Parse(fileLine.Substring((9 + (2 * (rowByte - startByte))), 2), System.Globalization.NumberStyles.HexNumber);
flashWriteData[offset + rowByte] = (byte)(wordByte & 0xFF);
}
}
}
}
} // end if (recordType == 0)
if (recordType == 1)
{ // end of record
break;
}
}
fileLine = hexRead.ReadLine();
}
Pk2.BL_WriteFlash(flashWriteData); // write last row
hexRead.Close();
return(true);
}
catch
{
return(false);
}
}
