Single bank Bootloader is over 16k when generating zip file for OTA

[mc]

Hi there,

I have a nrf51422CEAA chip with 16k variant with single bank bootloader code. I compile it using (03) optimazation and the final result is :

"Program Size: Code=12000 RO-data=332 RW-data=1248 ZI-data=3976"

My Keil setting is what this support group suggested. And these are: IROM1: 0x3C000 - 0x3C00 IRAM1: 0x20002C00 - 0x1380 IRAM2: 0x20003F80 - 0x80 (noint, checked)

I deleted all the button and LED component code save ROM and RAM. This bootloader is using s310_nrf51422_3.0.0_softdevice and working good with my app code and softdevice and but manually flashing it using Keil.

But when I make a zip for bootloader OTA, the size is more than 16k.

Will you help me solve this problem. I wanted to OTA the bootloader.

Thanks, MC With_BANK_VALID_APP_bt.map nrf51422_xxac.map With_BANK_VALID_APP_bt.hex nrf51422_xxac.hex

[mc]

Hi Vidar,

Attached is the map files. The nRF51422-xxac.map is the file I merge with bootloader_setting.hex that just exceeding 15k as you mentioned.

Regards, MC

[Vidar Berg]

strange, there isn't anything linked above 0x3FC00 or anything below 0x3C000 as far as I can see, so it shouldn't be more than 15K. May I ask for the .hex file as well?

[mc]

Hi Vidar,

The hex files are included.

Regards, MC

[Vidar Berg]

Hi MC, the last page in flash is used by the bootlaoder to store the bootloader_settings_t structure, and cannot be included in the DFU image. But you can use it if programming through the debug interface, please see question 'E' in this FAQ for more details.

Attached a distribution packet of the other hex file you sent to my answer.