Flash, RAM and Heap Usages Calculation at Run time

[vim_nordic]

Hi,

1. How to calculate the Flash and RAM usages at runtime? I am able to do it static way but wanted to analyze this at runtime. 

2. How to calculate the Heap usages at runtime? I have gone through some documents those referring to "size_t sys_heap_usable_size(struct sys_heap * heap, void *mem)" for heap usage, To use this api,  we need to populate "struct sys_heap". Not getting how to use this and Is there any other API which we can provide us the whole RAM Heap usages. 

Thanks & Regards

Vimal Verma

[Susheel Nuguru]

This is not possible to do only using nRF5 SDK modules. Flash runtime check will not be possible when you access fds/fstorage. 

RAM runtime usage : check this thread.

[vim_nordic]

Hi Susheel, 

As you have mentioned that in  nRF5 SDK module, flash runtime check is not possible but we are using the nCS connect SDK. Is this possible in nCS Connect SDK v1.9.1?

[Susheel Nuguru]

I do not think there are any native tools that will aid you to profile/monitor memory at runtime. But you can probably profile the activity using traceanalyzer or systemviewer.

If you are hunting memory overflows then CONFIG_STACK_SENTINEL is a nice tool to enable..