RAM reset after softreset | nrf52832 | sdk 15.2 | softdevice 6.1.0

[Somesh Burkule]

Hi,

I need to reset RAM after softreset. As I read product specification, RAM cannot be cleared after softreset or CPU lockup.

Please see below image for reference.

How can I clear total RAM after softreset( NVIC_SystemReset() )?

[Somesh Burkule]

Hi,

Can you please clear me that what is mean by RAM reset? which type of memory is cleared after RAM reset?

I am asking this because as per my understanding global variables are also part of RAM and they cannot be initialise again when softreset is done in nrf52832.

As I using other MCU's, they always resets RAM when there is softreset.

[Somesh Burkule]

Hi Vidar Berg,

Please tell me your thought about RAM reset? what does it includes?

Awaiting your reply.

Thanks,

Somesh

[Vidar Berg]

Hi,

These are basic concepts that are not specific to Nordic MCUs and it's difficult to cover it one answer. It's better if you post some code to demonstrate the problem.

Globals are always initialized on startup, so it doesn't matter what the reset source is.

[Somesh Burkule]

Hi,

I have issue related to nordic hardfault. I am using UART, BLE Scanner, Advertiser parallely in my application code and also fds for storing the parameters. please see below link for the issue.

https://devzone.nordicsemi.com/f/nordic-q-a/64313/hardfault-on-parallel-ble-scanning-and-advertising-on-nrf52832-with-fds-storage-sdk15-2

I suspect this may due to no RAM reset. please help me out for the same.

[Vidar Berg]

You can comment the "APP_ERROR_HANDLER(p_event->data.error_communication);" line in APP_UART_COMMUNICATION_ERROR event to ignore communication errors on the UART bus. This is not related to RAM initialization