NRF5340 Internal Flash partition problems

RE: NRF5340 Internal Flash partition problems

Hung Bui — Fri, 04 Mar 2022 08:48:42 GMT

Hi Wang,
I don't think the information is correct. The settings_storage is independent from MCUBoot.
As far as I know, MCUBoot stores the DFU progress in the metadata in the image header, not in the settings_storage.

How do you plan to store your data ? If you are planning to use the settings module, then you can just increase the setting_storage size to the size of your need by defining: CONFIG_PM_PARTITION_SIZE_SETTINGS_STORAGE

By default CONFIG_PM_PARTITION_SIZE_SETTINGS_STORAGE=0x2000.

RE: NRF5340 Internal Flash partition problems

GinoWang — Fri, 04 Mar 2022 01:26:33 GMT

I got this message through telephone communication with FAE of Hong Kong HONESTAR TECHNOLOGY. If not, could you please tell me how DFU uses these partitions? I want to know the detailed process.

Back to the previous two questions,Where should I put the 64K partition?

RE: NRF5340 Internal Flash partition problems

Hung Bui — Thu, 03 Mar 2022 14:58:51 GMT

Hi Wang,

I don't think the "settings_storage" is only dedicated for DFU, it's used for many other purposes, including storing user data.
Could you please point me to where you get the information of " Technical support feedback said that this partition was dedicated to DFU " ?

RE: NRF5340 Internal Flash partition problems

GinoWang — Thu, 03 Mar 2022 10:18:58 GMT

$ ninja partition_manager_report
[0/9] Performing build step for 'mcuboot_subimage'
ninja: no work to do.
[1/6] Performing build step for 'rpmsg_service_remote_subimage'
[0/5] Performing build step for 'b0n_subimage'
ninja: no work to do.
...
flash_primary (0x100000 - 1024kB):
+-------------------------------------------------+
| 0x0: mcuboot (0xc000 - 48kB)                    |
+---0xc000: mcuboot_primary (0x78000 - 480kB)-----+
| 0xc000: mcuboot_pad (0x200 - 512B)              |
+---0xc200: mcuboot_primary_app (0x77e00 - 479kB)-+
| 0xc200: app (0x77e00 - 479kB)                   |
+-------------------------------------------------+
| 0x84000: mcuboot_secondary (0x78000 - 480kB)    |
| 0xfc000: EMPTY_0 (0x2000 - 8kB)                 |
| 0xfe000: settings_storage (0x2000 - 8kB)        |
+-------------------------------------------------+

  otp (0x2fc - 764B):
+------------------------------+
| 0xff8100: otp (0x2fc - 764B) |
+------------------------------+

  sram_primary (0x80000 - 512kB):
+-----------------------------------------------+
| 0x20000000: sram_primary (0x6e000 - 440kB)    |
| 0x2006e000: pcd_sram (0x2000 - 8kB)           |
| 0x20070000: rpmsg_nrf53_sram (0x10000 - 64kB) |
+-----------------------------------------------+

 CPUNET flash_primary (0x40000 - 256kB):
+---------------------------------------------------+
+---0x1000000: b0n_container (0x8800 - 34kB)--------+
| 0x1000000: b0n (0x8600 - 33kB)                    |
| 0x1008600: provision (0x200 - 512B)               |
+---0x1008800: app (0x37800 - 222kB)----------------+
| 0x1008800: rpmsg_service_remote (0x37800 - 222kB) |
+---------------------------------------------------+

 CPUNET sram_primary (0x10000 - 64kB):
+-------------------------------------------+
| 0x21000000: sram_primary (0x10000 - 64kB) |
+-------------------------------------------+

The current partition info