- Description of the requirements
SDK:15.0.0
MCU:NRF52840
I currently have a product that is already in production, and I need to replace its boot program, and the new boot mainly replaces the name of the broadcast and the content of const uint8_t pk[64].
- Procedure
I have prepared the following:
New boot program with the name: new_boot.hex 、new_private.key。
Private key for the old product: The name is :old_private.key。
I created the zip package using the following command
./nrfutil nrf5sdk-tools pkg generate --hw-version 52 --sd-req 0xA9 --bootloader-version 2 --bootloader ./new_boot.hex --key-file ./old_private.key boot.zip
I used nRF Toolbox to upgrade the device, and the upgrade can be carried out normally, but the program cannot be started normally, and after debugging, I can see that it has entered HardFault。
- issue
1. Why does this operation enter the HardFault? How to fix it？