how can I change flash address in the code using nrf connect sdk for nrf5340

RE: how can I change flash address in the code using nrf connect sdk for nrf5340

Carl Richard — Mon, 29 Mar 2021 07:10:06 GMT

Hello again!

This is possible by using static partitions, configured in a pm_static.yml file. You can see an example of this in the asset tracker sample, for example.

Best regards,
Carl Richard

RE: how can I change flash address in the code using nrf connect sdk for nrf5340

SRINI — Wed, 24 Mar 2021 11:51:06 GMT

HI Carl,

Is there any possibility to set application start address and size of the application through pm.yml. if yes, please let me know the macro to set start address and size of the application

Regards,

Srinivas

RE: how can I change flash address in the code using nrf connect sdk for nrf5340

Carl Richard — Wed, 24 Mar 2021 09:16:21 GMT

Hi again!

The size of the immutable bootloader partition is also given by Kconfig, as mentioned in my previous comment. Specifically, PM_PARTITION_SIZE_B0_IMAGE.

As for the start address I mentioned this:

[quote user="crfosse"]From what I can see the partition manager places images according to pm.yml, starting at address 0x0. The end address is naturally given by the start address + image size.[/quote]

Hence, the start address is given by the setup in pm.yml.

Best regards,
Carl Richard

RE: how can I change flash address in the code using nrf connect sdk for nrf5340

SRINI — Wed, 24 Mar 2021 06:35:09 GMT

Thanks for information

I am able to see MCUboot partition size, MCUboot scratch size and MCUboot pad in Kconfig file

I could not find the start address of MCUboot and Immutable bootloader in Kconfig file.

I could not find immutable bootloader partition size also.

RE: how can I change flash address in the code using nrf connect sdk for nrf5340

Carl Richard — Thu, 18 Mar 2021 10:40:44 GMT

Hi again!

MCUboot bootloader:
You can find the base size the MCUboot bootloader in the MCUboot Kconfig. The partitions can be changed using the following configurations in the MCUboot child image .conf:

CONFIG_PM_PARTITION_SIZE_MCUBOOT
CONFIG_PM_PARTITION_SIZE_MCUBOOT_SCRATCH
CONFIG_PM_PARTITION_SIZE_MCUBOOT_PAD

Immutable bootloader:
The base size for the immutable bootloader partitions can similarly be found in the immutable bootloader Kconfig.

From what I can see the partition manager places images according to pm.yml, starting at address 0x0. The end address is naturally given by the start address + image size.

I hope this answers your question!

Best regards,
Carl Richard

RE: how can I change flash address in the code using nrf connect sdk for nrf5340

SRINI — Thu, 18 Mar 2021 04:52:03 GMT

Hi Carl,

Thanks for your reply.

MCUboot bootloader:

I am able to see pm.yml file in the below folder for MCUboot. but I am not able to see the start address of the MCUboot, End address of the MCUboot and size of the MCUboot in the configuration file.

v1.5.0\bootloader\mcuboot\boot\zephyr\pm.yml

Immutable bootloader:
I am able to see pm.yml file in the below folder for immutable bootloader. but I am not able to see the start address of the immutable bootloader, End address of the immutable bootloader and size of the immutable bootloader in the configuration file.

v1.5.0\nrf\samples\bootloader\pm.yml

Regards,

Srinivas.

RE: how can I change flash address in the code using nrf connect sdk for nrf5340

Carl Richard — Wed, 17 Mar 2021 11:46:33 GMT

Hi, Srinivas!

As you mention the partition manager configures the start address and size of RAM and flash partitions of multi image builds. You can configure the partitions using pm.yml files, as explained in the documentation. The documentation also contains some example configurations. What do you want do change?

Best regards,
Carl Richard