Does single bank bootloader in SDK7.1 support ZIP-file ?

[Jackxl]

Does single bank bootloader in SDK7.1 support ZIP-file ? I get error REMOTE DFU INVALID CRC ERROR in the end of flashing by nRF Toolbox when I use ZIP. If I use hex-file without init file I will send file without this error.

UPDATE 4.4.2017: App:deufol17.zip Bootloader:bootloader.hex

[bjorn-spockeli]

Hi Jackxl,

the single bank bootloader supports the zip file format, but it has to be generated using the old nrfutil tool bundled with Master Control Panel v3.9.0 or v3.8.0 since the format has changed as new SDKs have been released. You can download the older versions from here(x64) or here(x86).

How to use the nrfutil tool is explained in this guide.

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UPDATE 05.04.17

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You can convert the dual bank bootloader example in SDK v7.1 by replacing dfu_dual_bank.c with dfu_single_bank.c. Both are located in \components\libraries\bootloader_dfu

you also need to set the BOOTLOADER_REGION_START and BOOTLOADER_SETTINGS_ADDRESS in dfu_types.h to the values below in order for the bootloader to run properly on the nRF51822 xxAB

#define BOOTLOADER_REGION_START         0x0001C000                                                       
#define BOOTLOADER_SETTINGS_ADDRESS     0x0001FC00 

you also have to set the following IROM1, IRAM1 and IRAM2 settings

IROM1 Start: 0x1C000 Size: 0x3C00
IRAM1 Start: 0x20002000 Size:0x1F80
IRAM2 Start: 0x20003F80 Size:0x80

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UPDATE 20.04.17

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I have attached a working single bank bootloader based on the dual bank bootloader from SDK v7.1

Attachment: bootloader_single_bank_sdk_v7_1.zip

Best regards

Bjørn

[Jackxl]

It doesn't work for new version 3.10 ?

[bjorn-spockeli]

No, there was a change in the init package format in SDK v9.0.0 or SDK v10.0.0.

[Jackxl]

OK.Thank you. I get no error now. But I can't start application which I flashed by bootloader now.

[bjorn-spockeli]

Are you able to debug the bootloader and check if it reaches the bootloader_app_start(DFU_BANK_0_REGION_START) statement at the end of main?

[Jackxl]

Not yet, but I don't have settup for low level of optimalization. I get strange behavior after I flashed application. All LED blinking (I don't use led in my app), but It doesn't advertise and I can't operate with nrf51822xxAB anymore. I have to Recover it.