SDK Memory

[DD_connectivity]

Hi,

Please help to share Memory size of following SoftDevices:

S112

S113

S132

S140

Also, what will be the memory size of SoftDevice if i implement Central + Bootloader feature for OTA implementation and which SoC should be good enough ?

Which Softdevice enables me to implement above features.

Thanks.

[Hung Bui]

Hi Digesh,

The actual RAM size required for the softdevice depends on the configuration of the application ( for example maximum number of connections, number of base UUIDs ) 

Note that the Bootloader doesn't run at the same time with the application so the softdevice will be in peripheral mode when running with bootloader. 

If you are getting started with the Nordic's softdevice, I would suggest to test with the application first, before testing with the bootloader. 

[DD_connectivity]

Hi Hung,

* Sorry, i meant how much Flash will be consumed by each of above softdevice.

1)  So to run the bootloader feature, we need the SoC to be able to run as Central and Peripheral also, in that case how much Flash is needed ( Central + Peripheral + Bootloader).

2) I want to do below on application side.

• Scanning BLE tags, Filtering certain devices ( by Name) & forwarding filtered data to main uC
• Serial / UART over BLE for connecting with a remote configuration device
• Updating the FW of BLE chip over serial port

Can you let me know how much Flash will be consumed if i implement point 1)

and How much if i implement Point 2. Just a tentative no. Need not be exact.

Look forward to your guidance. Thanks.

[Hung Bui]

You can find the size of the softdevice in the release note of each softdevice (inside the .zip file) 

The size of the bootloader size can be calculated by the total size of the flash minus the start address of the bootloader. 

[DD_connectivity]

Hi Hung,

thanks for your quick reply.

So if i implement Central+Peripheral+ Bootloader) how much of my SoC flash will be consumed  ?

Can i do SPP ?

[Hung Bui]

When you do Central, Peripheral or any other Bluetooth roles, the softdevice wont grow in size. 

The application may varied, but it's up to the application. Please try testing, compile your application and find the actual size for your application. 

You can have a look at the memory layout here to have an overview: https://infocenter.nordicsemi.com/topic/sdk_nrf5_v16.0.0/lib_bootloader.html?cp=6_1_3_5_0_7#lib_bootloader_memory

[DD_connectivity]

Thank