void sendCan()
{
try
{
processStr = sequence[processIndex.ToString()].ToString();
}
catch (NullReferenceException)
{
flashFlag = false;
return;
}
mainSendData.Clear();
mainSendData.AddRange(CanControl.canStringToByte(flashProcess[processStr].ToString()));
ServiceIdentifier = mainSendData[0];
switch (processStr)
{
case "SeedRequest":
mainSendData.Add(securityAccess[0]);
break;
case "KeySend":
byte[] seed = new byte[4];
Array.Copy(CanControl.Rev, 3, seed, 0, 4);
byte[] key = sec.seedToKey(seed);
mainSendData.Add(securityAccess[1]);
mainSendData.AddRange(key);
break;
case "DownloadRequest":
if (s19File == null)
{
s19File = s19.getS19File();
s19FileDataCRC32Value = CRC32.GetCRC_Custom(s19File);
}
s19Block = s19File[s19BlockIndex];
mainSendData.AddRange(s19Block.StartAddress);
mainSendData.AddRange(s19Block.DataLength);
break;
case "DataTransfer":
int bootCacheBlockDataIndex = bootCacheBlockSequenceIndex * (bootCacheLength - 2);
mainSendData.Add(bootCacheBlockSequenceCounter);
for (int i = 0; i < bootCacheLength - 2; i++)
{
int indexTmp = bootCacheBlockDataIndex + i;
if (indexTmp >= s19Block.Data.Length)
{
break;
}
mainSendData.Add(s19Block.Data[indexTmp]);
}
bootCacheBlockSequenceCounter = (byte)((bootCacheBlockSequenceCounter + 1) & 0xFF);
bootCacheBlockSequenceIndex++;
break;
case "RoutineIdentifier":
byte[] crc32Byte = new byte[4];
for (int i = 0; i < 4; i++)
{
crc32Byte[i] = (byte)(s19FileDataCRC32Value >> (8 * (3 - i)));
}
mainSendData.AddRange(crc32Byte);
break;
case "MemoryErase":
mainSendData.Add(0x44);
if (s19File == null)
{
s19File = s19.getS19File();
s19FileDataCRC32Value = CRC32.GetCRC_Custom(s19File);
}
mainSendData.AddRange(s19File[s19BlockIndex].StartAddress);
mainSendData.AddRange(s19File[s19BlockIndex].DataLength);
break;
default:
break;
}
sendResult = CanControl.sendFrame(physicalID, receiveID, mainSendData.ToArray());
}
internal static uint GetCRC_Custom(S19Block[] s19File)
{
GetCrcCustomTable();
List<byte> byteList = new List<byte>();
Array.ForEach(s19File, block => byteList.AddRange(block.Data));
uint crc = 0xFFFFFFFF;
foreach (byte b in byteList)
{
crc = (crc << 8) ^ CrcCustomTable[((crc >> 24) ^ b) & 0xFF];
}
return crc ^ 0xFFFFFFFF;
}
void sendCan()
{
try
{
processStr = sequence[processIndex.ToString()].ToString();
}
catch(NullReferenceException)
{
flashFlag = false;
return;
}
mainSendData.Clear();
mainSendData.AddRange(CanControl.canStringToByte(flashProcess[processStr].ToString()));
ServiceIdentifier = mainSendData[0];
switch (processStr)
{
case "SeedRequest":
mainSendData.Add(securityAccess[0]);
break;
case "KeySend":
byte[] seed = new byte[4];
Array.Copy(CanControl.Rev, 3, seed, 0, 4);
byte[] key = sec.seedToKey(seed);
mainSendData.Add(securityAccess[1]);
mainSendData.AddRange(key);
break;
case "DownloadRequest":
if (s19File == null)
{
s19File = s19.getS19File();
s19FileDataCRC32Value = CRC32.GetCRC_Custom(s19File);
}
s19Block = s19File[s19BlockIndex];
mainSendData.AddRange(s19Block.StartAddress);
mainSendData.AddRange(s19Block.DataLength);
break;
case "DataTransfer":
int bootCacheBlockDataIndex = bootCacheBlockSequenceIndex * (bootCacheLength - 2);
mainSendData.Add(bootCacheBlockSequenceCounter);
for (int i = 0; i < bootCacheLength - 2; i++)
{
int indexTmp = bootCacheBlockDataIndex + i;
if (indexTmp >= s19Block.Data.Length)
{
break;
}
mainSendData.Add(s19Block.Data[indexTmp]);
}
bootCacheBlockSequenceCounter = (byte)((bootCacheBlockSequenceCounter + 1) & 0xFF);
bootCacheBlockSequenceIndex++;
break;
case "RoutineIdentifier":
byte[] crc32Byte = new byte[4];
for (int i = 0; i < 4; i++)
{
crc32Byte[i] = (byte)(s19FileDataCRC32Value >> (8 * (3 - i)));
}
mainSendData.AddRange(crc32Byte);
break;
case "MemoryErase":
mainSendData.Add(0x44);
if (s19File == null)
{
s19File = s19.getS19File();
s19FileDataCRC32Value = CRC32.GetCRC_Custom(s19File);
}
mainSendData.AddRange(s19File[s19BlockIndex].StartAddress);
mainSendData.AddRange(s19File[s19BlockIndex].DataLength);
break;
default:
break;
}
sendResult = CanControl.sendFrame(physicalID, receiveID, mainSendData.ToArray());
}