How to transfer a bat file to flash memory and access it in file explorer

[Ankit]

I have flashed the firmware using nRF connect app. I have a bat file which executed few commands. I want to transfer that file to flash memory and access it I the file explorer so that whenever I plug it in a PC, I can click on it and run the bat file.

[awneil]

Are you talking about the USB disk drive that is emulated by the onboard Segger JLink ?

This is part of the DAPLink specification: https://os.mbed.com/docs/mbed-os/v5.11/tools/daplink.html

It's not designed to do what you describe, so I don't think it'll work. In particular, I think "random" files on the drive are likely to get deleted...

Or are you using an nRF52840, and planning to implement a USB MSC in the target chip's flash?

[Ankit]

I am planning to use it as USB MSC also aside BLE device. I am working on a project and want to use this device as plug and play(download file required for the project via a .bat file which uses the BLE device). I have made a .bat file which is around 1 kb and I want to put that file in the nRF52840 device so that I don't need to carry that file in a separate device.

[awneil]

OK - if you're implementing an MSC device, then you can do what you want with it.

So long as you understand the distinction between an MSC device that you implement on the target, and the MSC device that's part of the JLink on the DK.