| Sigvart Hovland | 25ec746 | 2019-03-11 15:57:21 +0100 | [diff] [blame^] | 1 | # Building MCUBoot with nRF52840 CC310 enabled |
| 2 | |
| 3 | ## Pre-prerequisites |
| 4 | |
| 5 | Clone [nrfxlib](https://github.com/NordicPlayground/nrfxlib) next to the mcuboot root folder. So that it's located `../nrfxlib` from mcuboots root folder. |
| 6 | |
| 7 | ## Building |
| 8 | |
| 9 | make sure `root-ec-p256.pem` is set as the certificate and that `CONFIG_BOOT_SIGNATURE_TYPE_ECDSA_P256` is selected not `CONFIG_BOOT_SIGNATURE_TYPE_RSA` in `prj.conf` of `boot/zephyr`. |
| 10 | Since it defaults to tinycrypt you'll have to go into `menuconfig` and change the implementation selection to `cc310` or also set this in `prj.conf`. |
| 11 | |
| 12 | ``` |
| 13 | mkdir build && cd build |
| 14 | cmake -GNinja -DBOARD=nrf52840_pca10056 |
| 15 | ninja flash |
| 16 | ``` |
| 17 | |
| 18 | Build a hello world example in zephyr and sign it with imgtool.py with the `root-ec-p256.pem` and flash it at `FLASH_AREA_IMAGE_0`. |