uart bootloader without softdevice

[Jerry]

hi,

I used  nRF52932QFAA ,SDK14.2 uart bootloader.it works well with softdevice loader 5.0.0.But when I download my app(without softdevice),it cannot work.

Flash composed like below.

• Bootloader is placed into 0x73000 (size: 0xB000)
• Application is placed into 0x23000 (size:0x50000)

RAM used like below.

• Bootloader working without SD. 0x20006000 (size: 0x9000)
• Application working with SD.     0x20002C00 (size: 0x2800)

best regards.

[bjorn-spockeli]

Hi Suzhou, 

could you please explain in detail what that is not working. 

1. Does the DFU process finish without any errors? If so does the device advertise as DfuTarget after the update or does it not advertise at all?
2. If you debug the bootloader, do you reach the  nrf_bootloader_app_start(MAIN_APPLICATION_START_ADDR); call in nrf_dfu_init() in nrf_dfu.c?
3. How did you generate the Application DFU image with nrfutil? Please post the commands as well as the nrfutil version.  

Best regards

Bjørn

[Jerry]

Hi,

It's my app don't work,and bootloader run normal.I think it is somewhere configure bad,but I don't what caused.Here's my app code.

[Jerry]

add app code

[bjorn-spockeli]

Can you verify that you are able to perform an application DFU with the pre-made test images by following the BLE Secure DFU Bootloader Testing guide?

If you are able to successfully perform DFU with the  test image, then please answer the following questions:

1. Does the DFU process finish without any errors? If so does the device advertise as DfuTarget after the update or does it not advertise at all?
2. If you debug the bootloader, do you reach the  nrf_bootloader_app_start(MAIN_APPLICATION_START_ADDR); call in nrf_dfu_init() in nrf_dfu.c?
3. How did you generate the Application DFU image with nrfutil? Please post the commands as well as the nrfutil version.