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Bootloader hardfault

Sergy

Hi,

Im trying to use BLE DFU Bootloader from examples. I loaded SD8 and then bootloader via nrfStudio (dont have a valid app flashed), but I cant see the device from Android app. I decided to do some debugging via Keil. I recompiled Bootloader with no optimisation and moved bootloader address to 0x3A000.

If I try to debug in Keil it doesnt stop at main, but if i manually press stop it gets into hardfault: image description

Memory settings: image description

Compilation settings: image description

Im using Revision 3 chip. What do I do wrong?

app.zip

hex

Bootloader

Bootloader hex O3

bootloader package without BANK_VALID_APP

Bootloader HEX without BANK_VALID_APP

Memory map according to NRF Studio: Memory map

Bootloader optimisation Level 2 gets stuck on run: image description

Image size > 0x6400

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  • 0

    Your application is 70kB and not 47kB. This means that you need at least 140kB of application flash space( two banks of 70kB each) when using a Dual Bank Bootloader. If you use the default ROM settings for the bootloader, i.e. the bootloader starts at 0x3C000 then you'll have

    0x3C000 - 0x18000 = 0x24000( 144kB left)

    However, extending the bootloader section in order to debug the bootloader you are left with

    0x3A000 - 0x18000 = 0x22000( 136kB left)

    which is not enough and you will get the Data Size Exceeds Limiterror

  • 0 in reply to bjorn-spockeli

    I removed BANK_VALID_APP, but still having the same problem: Data Size Exceeds Limit. Just for the sake of clarity I tried two things: 1)first flashed SD+APP+BL with set BANK_VALID_APP. Then I tried OTA DFU and sent a BL without BANK_VALID_APP.

    1. I loaded SD+BL without BANK_VALID_APP and tried to do OTA DFU. Got the same error. Im attaching both new package and hex file to the main thread. Please have a look.
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  • 0 in reply to bjorn-spockeli

    I removed BANK_VALID_APP, but still having the same problem: Data Size Exceeds Limit. Just for the sake of clarity I tried two things: 1)first flashed SD+APP+BL with set BANK_VALID_APP. Then I tried OTA DFU and sent a BL without BANK_VALID_APP.

    1. I loaded SD+BL without BANK_VALID_APP and tried to do OTA DFU. Got the same error. Im attaching both new package and hex file to the main thread. Please have a look.
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