Modify DEVICE_NAME

[Yoojin.Jang]

Hello.

I use nrf51822 chip.

I want modify Device_name as below.

1EA product "CoCoNut - 001"

other 1EA product "CoCoNut - 002"

other 1EA product "CoCoNut - 003" .....

So, 001,002,003 numbering is storage from flash memory.

I want modify only one source code.

but, I don't know add device_name.

How can I modify source code?

please confirm it.

[Roger Clark]

You could use a script to modify your binary for each device you upload to.

e.g. In your code define a constant array with the text "CoCoNut - 001"

In the binary there were be a the text "CoCoNut - 001", so you just need to get your script to change this to "CoCoNut - 002" etc before you upload

You'd need to keep track of the index number somehow, e.g. some sort of database (or even just a text file)

[Yoojin.Jang]

Thank you for your support. I understand the above. perhaps do you have a example source code?

[Roger Clark]

It would depend on what operating system you were using and probably what programmer e.g. JLink you are using?

e.g. on Linux you could use perl to search and replace the string in the binary

[Yoojin.Jang]

yes. I use J-link edu. operation system is windows and C language

[Roger Clark]

I don't know of any example code that will do this for you.

You'll need to split the task into smaller parts and find code to do each part e.g.

Open and read a binary file into memory Open your database (possibly text file) and read in the current index number Search and replace the file in memory with the number from the database Write out the new binary file as a temporary file for upload

Write your index number back to your database Use the JLink SDK to connect to the JLink and upload the temporary file If no error, increment your index number and save back to your database file. Potentially loop back around based on user feeback

Note you may be able to skip the step where you save the temporary binary file and instead send it straight to the JLink SDK API.

BTW. Someone may post an alternative solution.i.e give you some code or script they already wrote.

[Yoojin.Jang]

I think It does not seem to modify the database. I just want to change the device name to a type variable from type const. what do you think?