Mesh assert when changed ACCESS_FLASH_PAGE_COUNT to 2

[Shubham]

A mesh node contains multiple lights.

Assume a light contains 5 Elements (Main, Temperature, Hue, Saturation, Light LC). Each light has 30 model servers implemented.

When I use this with 2 Lights (10 elements and 60 + 2 models), works fine, code builds and executes without any assertion. At this time ACCESS_FLASH_PAGE_COUNT is 1.

When I changed light count to 3 (15 elements and 90 + 2 models), Changed ACCESS_FLASH_PAGE_COUNT to 2, code builds but during execution it asserts.

What is going wrong, do I need to change any more things in order to use the ACCESS_FLASH_PAGE_COUNT as 2?

I did look into the macro in access.c which does a static check during build time and calculated the requied page_count.

Is there any restrictions for using maximum number of ACCESS_FLASH_PAGE_COUNT?

[Mttrinh]

Hi,

Do you see where it asserts?

You might get an assert during compilation if the allocated flash page size is too low. In addition to ACCESS_FLASH_PAGE_COUNT you will also need to increase DSM_FLASH_PAGE_COUNT as well. If this doesn't work try increasing ACCESS_FLASH_PAGE_COUNT more.

[Mttrinh]

Did you try erasing the whole chip before reprogramming?

[Shubham]

Sorry for the late response.

Yes, I did erase whole chip before programming with --eraseall

[Mttrinh]

Maybe this can help. From "nRF5 SDK NVM storage modules".

Also have you tried adjusting ACCESS_ELEMENT_COUNT and ACCESS_MODEL_COUNT?

[Shubham]

Thanks, link has some helpful information.

Smaller values of ACCESS_ELEMENT_COUNT and ACCESS_MODEL_COUNT works.
But, I want to have higher number of elements and models.