Exemple #1
0
        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);
        }
Exemple #2
0
        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;
        }
Exemple #3
0
        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);
        }
Exemple #4
0
        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;
        }