How to read a hex file without knowing the memory size?

[sruthivarghese15]

There seems to have no way to read a hex file without providing the memory size. Or we have to always give a memory size of maximum number in that case?

I'm using

version 2.2.3

.Net core 2.1 Framework

[christophediericx]

Hi Sruthi, You are correct. You can currently not read the hex file without providing a memory size. Perhaps that should be changed. Thanks, Christophe

…

On Wed, 20 Feb 2019 at 07:33, Sruthi Varghese ***@***.***> wrote: There seems to have no way to read a hex file without providing the memory size. Or we have to always give a memory size of maximum number in that case? I'm using version 2.2.3 .Net core 2.1 Framework — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#1>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ASuyFsRBNby8z9_Kcg-wo5w1rKPSKElMks5vPTJ7gaJpZM4bFA2N> .

[sruthivarghese15]

In that case what would be the ideal memory size to be provided if I want to read the file for a firmware upgrade?

[dharminec]

What should be the value of memory size? I passed 0-4096 and all the time I got below exception.

System.IO.IOException: 'Trying to write to position 4096000 outside of memory boundaries (1240000)!'

[lucagiuliodori]

There seems to have no way to read a hex file without providing the memory size. Or we have to always give a memory size of maximum number in that case?

I'm using

version 2.2.3

.Net core 2.1 Framework

If it can be useful I have inserted the following constructor:

public HexFileReader(string fileName)
        {
            if (!File.Exists(fileName))
                throw new ArgumentException(string.Format("File {0} does not exist!", fileName));

            memorySize = 0;

            System.IO.StreamReader file = new System.IO.StreamReader(fileName);
            while (true)
            {
                string hexRecordLine = file.ReadLine();

                if(hexRecordLine == null)
                {
                    break;
                }

                var hexRecord = HexFileLineParser.ParseLine(hexRecordLine);
                switch (hexRecord.RecordType)
                {
                    case RecordType.Data:
                    {
                        memorySize += hexRecord.ByteCount;
                        break;
                    }
                }
            }
            file.Close();

            Initialize(File.ReadLines(fileName), memorySize);
        }