SDK12.3，NRF51822-QFAA,DFU setting

RE: SDK12.3，NRF51822-QFAA,DFU setting

mdevil39 — Mon, 23 Jul 2018 07:55:03 GMT

Thanks for your help .It works ok now .

RE: SDK12.3，NRF51822-QFAA,DFU setting

tesc — Fri, 20 Jul 2018 09:23:22 GMT

Hi,

You should not modify the bootoader.

You need the following:

Bootloader hex file
Application hex file
SoftDevice hex file
Bootloader settings page hex file

You build the bootloader and application. You use the SoftDevice hex file provided by us. You generate the bootloader settings page with nrfutil.

Please have a look at the BLE Secure DFU Bootloader example and its documentation, in particular the Testing section.

Regards,
Terje

RE: SDK12.3，NRF51822-QFAA,DFU setting

mdevil39 — Thu, 19 Jul 2018 15:38:58 GMT

If bootloader_secure project doesn't has any change it works ok : after program all files(softwareDevice/ application /bootloader), it can see from app: DfuTarg . But how can I make it runs normal after program all files, instead of running in bootloader mode .

I try to modify bootloader which make application doesn't enter bootloader mode after program bootloader, but it fail :

uint8_t m_boot_settings[CODE_PAGE_SIZE] __attribute__((at(BOOTLOADER_SETTINGS_ADDRESS))) __attribute__((used))= {BANK_VALID_APP};

RE: SDK12.3，NRF51822-QFAA,DFU setting

tesc — Thu, 19 Jul 2018 13:34:16 GMT

Hi,

When you program the bootloader directly (using a programmer), together with an application, then you must also generate and program a bootloader settings page. That way the bootloader is aware of the application. Otherwise it will think that no application should be started.

See the Bootloader settings section of the DFU process documentation, as well as the documentation for generating a bootloader settings file with nrfutil.

Regards,
Terje

RE: SDK12.3，NRF51822-QFAA,DFU setting

mdevil39 — Wed, 18 Jul 2018 07:58:21 GMT

0> SDH:WARNING:sd_ble_enable: RAM start should be adjusted to 0x20002018
0> SDH:WARNING:RAM size should be adjusted to 0x1fe8

According to the application message , I set the ram start 0x20002018 size 0x1fe8, it can work without bootloader software . But I don't know how to set bootloader software ram .