public bool WriteRange(uint address, byte[] data, ProgrammingModes prgMode, bool doVerify)
{
if (data == null || data.Length == 0)
{
return(false);
}
var dataLength = data.Length;
var start = address;
var sSize = GetSectorSize(address);
var dataBlock = new byte[sSize];
while (dataLength >= sSize)
{
Buffer.BlockCopy(data, (int)(address - start), dataBlock, 0, (int)sSize);
if (!Program(address / 2, dataBlock, prgMode))
{
return(false);
}
address += sSize;
dataLength -= (int)sSize;
sSize = GetSectorSize(address);
if (dataBlock.Length != sSize)
{
Array.Resize(ref dataBlock, (int)sSize);
}
}
return(doVerify && Verify(start, data) || !doVerify);
}
private bool Program(uint address, byte[] data, ProgrammingModes prgMode)
{
uint blockSIZE;
var sSize = GetSectorSize(address * 2);
Debug.Assert(data.Length == sSize);
Debug.Assert((address & sSize / 2 - 1) == 0);
SendCommand(NORInformation.ChipType == NORInfo.ChipTypes.SamsungK8Q2815Uqb && address >= 0x400000 ? FlashCommand.NOR2NdDieEnable : FlashCommand.NOR2NdDieDisable);
FlashCommand flashCommand;
switch(prgMode) {
case ProgrammingModes.WordMode:
blockSIZE = 0x2000; // 8KB blocks
flashCommand = FlashCommand.NORWriteBlockWord;
break;
case ProgrammingModes.UnlockBypassMode:
blockSIZE = 0x2000; // 8KB blocks
flashCommand = FlashCommand.NORWriteBlockUbm;
break;
case ProgrammingModes.WriteBufferMode:
blockSIZE = 0x8000; // 32KB blocks
flashCommand = FlashCommand.NORWriteBlockWbp;
break;
default:
return false;
}
var oData = ReadSector(address, sSize);
if(ByteArraysEqual(oData, data))
return true;
if(!ByteArrayHasSameValues(oData, 0xff))
EraseSector(address);
for(uint i = 0; i < sSize; i += blockSIZE) {
var retries = WriteRetries;
while(retries != 0) {
SetAddress(address + (i / 2));
SendCommand(flashCommand);
Flush();
WriteBlock(ByteArrayCopy(data, i, blockSIZE));
// read write status byte
// 'K' = okay, 'T' = timeout error when writing, 'R' = Teensy receive buffer timeout, 'V' = Verification error
var res = Read();
if(res == 75)
break;
SendCommand(FlashCommand.NORReset);
Ping();
retries -= 1;
Debug.WriteLine(string.Format("({0}. Retry) {1}", WriteRetries - retries, res == 84 ? "RY/BY timeout error while writing!" : string.Format("Received unknown error! (Got 0x{0:X})", res)));
} //end while
if(retries != 0)
continue;
Debug.WriteLine("Flashing failed");
return false;
} //end for
return true;
}
private bool Program(uint address, byte[] data, ProgrammingModes prgMode)
{
uint blockSIZE;
var sSize = GetSectorSize(address * 2);
Debug.Assert(data.Length == sSize);
Debug.Assert((address & sSize / 2 - 1) == 0);
SendCommand(NORInformation.ChipType == NORInfo.ChipTypes.SamsungK8Q2815Uqb && address >= 0x400000 ? FlashCommand.NOR2NdDieEnable : FlashCommand.NOR2NdDieDisable);
FlashCommand flashCommand;
switch (prgMode)
{
case ProgrammingModes.WordMode:
blockSIZE = 0x2000; // 8KB blocks
flashCommand = FlashCommand.NORWriteBlockWord;
break;
case ProgrammingModes.UnlockBypassMode:
blockSIZE = 0x2000; // 8KB blocks
flashCommand = FlashCommand.NORWriteBlockUbm;
break;
case ProgrammingModes.WriteBufferMode:
blockSIZE = 0x8000; // 32KB blocks
flashCommand = FlashCommand.NORWriteBlockWbp;
break;
default:
return(false);
}
var oData = ReadSector(address, sSize);
if (ByteArraysEqual(oData, data))
{
return(true);
}
if (!ByteArrayHasSameValues(oData, 0xff))
{
EraseSector(address);
}
for (uint i = 0; i < sSize; i += blockSIZE)
{
var retries = WriteRetries;
while (retries != 0)
{
SetAddress(address + (i / 2));
SendCommand(flashCommand);
Flush();
WriteBlock(ByteArrayCopy(data, i, blockSIZE));
// read write status byte
// 'K' = okay, 'T' = timeout error when writing, 'R' = Teensy receive buffer timeout, 'V' = Verification error
var res = Read();
if (res == 75)
{
break;
}
SendCommand(FlashCommand.NORReset);
Ping();
retries -= 1;
Debug.WriteLine(string.Format("({0}. Retry) {1}", WriteRetries - retries, res == 84 ? "RY/BY timeout error while writing!" : string.Format("Received unknown error! (Got 0x{0:X})", res)));
} //end while
if (retries != 0)
{
continue;
}
Debug.WriteLine("Flashing failed");
return(false);
} //end for
return(true);
}
public bool WriteRange(uint address, byte[] data, ProgrammingModes prgMode, bool doVerify)
{
if(data == null || data.Length == 0)
return false;
var dataLength = data.Length;
var start = address;
var sSize = GetSectorSize(address);
var dataBlock = new byte[sSize];
while(dataLength >= sSize) {
Buffer.BlockCopy(data, (int) (address - start), dataBlock, 0, (int) sSize);
if(!Program(address / 2, dataBlock, prgMode))
return false;
address += sSize;
dataLength -= (int) sSize;
sSize = GetSectorSize(address);
if(dataBlock.Length != sSize)
Array.Resize(ref dataBlock, (int) sSize);
}
return doVerify && Verify(start, data) || !doVerify;
}