Flashing hex file

[akshita_manwati]

What can be done if the output read after flashing a hex file is not matching the flashed hex file in frdm KW36? 

[Alice_Yang]

Hello Akshita Manwati,

Could you please describe your question detail.

How to flash hex file ? How to read ? What about the data in hex file and result of read？

You can also have a look at the flashed data in "Memory " view, check whether correctly flashed:

Have a great day,
TIC

[akshita_manwati]

Hello Alice

The hex file that I am flashing as mentioned in the document named ''Reprogramming a KW36 device using the OTAP Client Software" is ''frdmkw36_wireless_examples_bluetooth_glucose_s_freertos.'' Exporting the memory after flashing this hex file, the contents of memory after exporting and the hex file flashed do not match when compared.using Beyond Compare.

Thanks

Akshita Manwati

[Alice_Yang]

Hi Akshita Manwati,

How about compare the hex file with memory view I mentioned above ?

BR

Alice

[akshita_manwati]

Hi Alice

On comparing with memory view some data don't match. Is it be possible due to run time changes?

Regards

Akshita

[Alice_Yang]

Hi Akshita Manwati,

After download hex file, do not RUN, first compare.

And how about other project ?

How do you flash?

BR

Alice

[akshita_manwati]

Hi Alice

I am using NXP IoT Toolbox box app to flash the hex file. After flashing I compare the data in the memory, so for doing this I have to RUN and then flash. For all other projects I use the same method.

Thanks and regards

Akshita  

[estephania_mart]

Hello, 

Are you considering the bootloader space when you do the memory dump?

Please remember that a special bootloader was flashed and the application that you build separated has an offset, so if you are comparing the complete memory with just the application file it won't match.

Regards, 

Estephania

[akshita_manwati]

Hello Estephania

I am considering the bootloader  space and then flashing my hex file.

Regards

Akshita

[estephania_mart]

Hello, 

Yes, I understand that it's the process you are following, but you mention that the hex files do not match between the application you are flashing and the memory dump. 

When you are comparing the hex files are you considering the diagram I'm attaching? Or are you just comparing the hex file from the offset that you add to the application when you compile it? 

Regards, 

Estephania 

[akshita_manwati]

Hello 

I am comparing the hex file from the offset that I have added to the application.

Regards

Akshita

[estephania_mart]

Hello, 

Which are the differences you are seeing, are you considering the format of the OTA image? How exactly are you generating the memory dump and the output in hex file ?  

[akshita_manwati]

Hello

The issue was resolved, my hex file memory was larger than the size required. Therefore by flashing the correct hex file now my memory is matching.

Thanks and regards

Akshita

[estephania_mart]

Hello, 

It is good that you were able to solve your issue. 

Regards, 

Estephania