DFU flash issue

RE: DFU flash issue

Rune Holmgren — Tue, 24 Apr 2018 15:15:45 GMT

Hi,

The hex file you sent me seems to have content from 0x73000 and onwards. The default non debug bootloader will be placed from address 0x78000 and onwards when taken straight out of the SDK.

It is possible to move the bootloader if that is what you wanted to do, but it requires a few changes internally in the project to ensure UICR and Application data are placed correctly.

Best regards,
Rune Holmgren

RE: DFU flash issue

vikas dubey — Thu, 12 Apr 2018 14:30:39 GMT

Hi,

Thanks for your input.

I build "nRF5_SDK_14.2.0_17b948a/examples/dfu/bootloader_secure_ble /pca10040" which is non debug bootloader using gcc makefile. When I burned hex file using nprog. LED3 continuosly remains on, and no advertisement happened.

Later I build debug version and burned that, bootloader in dfu mode start advertising as DfuTarg.

I required non-debug bootloader as it is recommeded for production purpose.

Please check what went wrong.

devzone.nordicsemi.com/.../0842.nrf52832_5F00_xxaa_5F00_s132.hex

RE: DFU flash issue

Rune Holmgren — Wed, 11 Apr 2018 13:47:26 GMT

The DFU settings page you sent me is located at address 0x23000 on top of the application. The DFU settings page should be located at the very top of the flash, typically at (edit, this number used to say 0x78000) 0x7F000-0x7FFFF, as shown in the map below.

Best regards,
Rune Holmgren