Uploading Bootloader & application

[Asha]

Hi,

I have create a separate .hex file for boot-loader & application. when i try to load them into the nRF52382 through "nRF connect".

It says overwriting has occurred.

please let me know how to do flash the bootloader & the application without overloading issue.

Thank you in advance.

[Lecram69]

Adjust linker memory section of apllication in flash. Seems like you got MBR and application? Bootloader is at the end of the flash

[Asha]

can u please guide me, what i should do? because I'm new to this...

[Lecram69]

What is Rizwan.hex? What is the address range of blinky.hex?

At the beginng of the flash is the MBR expected with range 0x0000 - 0x1000. At 0x1000 is either the softdevice or the application itself if no softdevice is needed

[Asha]

Please check i have updated the picture.

Bootloader.hex - my bootloader file.

Rizwan.hex - my application, which needs to flash.

[Lecram69]

Take a look here: Nordic Semiconductor Infocenter

Bootloader is at the end of flash. Application starts at 0x1000 without SD but with MBR. Otherwise it starts at 0x27000 with SD. If the parts are not on the correct address position in flash it wont work. You can specify the adress range of the parts in the linker script. Take a look into your project settings and search for a .ld file.

it seems your application starts at 0x1000 so no SD is available. To do a DFU update you still need an MBR at 0x0000-0x1000. The reason you face the problem above is the bootloader. It shouldnt be at the beginng of the flash or collapse with the application at all.

[Asha]

I didn't find any Linker script  in my project

[Vidar Berg]

Please summarize what you have done thus far. E.g.. which SDK examples you used to generate the hex files and with what IDE/toolchain. We can't tell you why your hex file overlap when we don't have any information about your projects.

[Asha]

Hi, we have developed our Bootloader & application using VScode(using platformio) on Linux.

Controller using - nRF52382.

This is my bootloader program.

[env:adafruit_feather_nrf52832]

platform = github.com/.../platform-n-able.git#1.0.0

board = adafruit_feather_nrf52832

framework = arduino

board_bootloader = adafruit

;board_build.f_cpu = 64000000L

upload_protocol = jlink

debug_tool = jlink

[Asha]

my application program is simple blinking of LED.  I took the .hex files of these and trying to burn it through nRF connect.

When i bun it through VS code, there is no problem. But the same thing when i try to upload through nRF connect its overlapping.

When our product goes for mass production we cant give the source code for burning. So we prefer to give the .hex to burn

[Vidar Berg]

The problem is that you have two programs that overlap with each other in FLASH. I'm not familiar with PlatformIO, so I can't tell you where to change the linker settings, but that's probably what you need to do.

You can compare the *.map files from your build folders to see where overlap is.