Run multiperipheral of NUS in nRF52810

[Tom.Fu]

Dear Nordic support team

I tried to change the sample of ble_app_uart (nRF5_SDK_17.0.2_d674dde\examples\ble_peripheral\ble_app_uart\pca10040e) to support connecting 4 mobile phones, but the IDE showed the below error after I changed the RAM start and RAM size.

Do the nRF52810 not support  to run NUS multiperipheral for connecting 4 mobile phones? which chip would most fit this application?

The attachment is my code.

Thank you very much.

8836.pca10040e.7z

[Simonr]

Hi

Okay, it seems like you have misunderstood how to set the RAM_SIZE. The RAM_SIZE should be the total RAM - RAM_START to get what RAM_SIZE should be set to in the section placement macros. So RAM size should be set to 0x0F90 if my math isn't totally off.

Best regards,

Simon

[Tom.Fu]

Hi

This project's requirement RAM SIZE is 0xAF90 ,0xAF90 is equal to 43K.

So, There isn't enough RAM SIZE for nRF52810 to run ble nus peripheral of 4 peripheral links?

[Simonr]

Hi

The 0xAF90 was set by you in this screenshot as far as I can tell, so you seem have set the RAM_SIZE to more than the nRF52810 has room for, which  won't leave room for the SoftDevice. This is what the error you're seeing is indicating. 

What happens if you try to set RAM_SIZE to 0x0F90 instead? I don't think an application with four peripheral links should exceed the nRF52810's RAM.

Best regards,

Simon