nrf ble peripheral Custom Service permission error

[Pavan Kote]

we are using NRF52832 for my development. Also implemented 1  custom service. Currently we are using 2 standard services and 1 custom service(12 custom characteristics) with our application. I assigned read/write/notify permission as characteristics need. We also implemented Windows Application to exchange the data with our peripheral device.

Currently we are facing services permission error sometimes. what could the reason for that.

Also sometimes facing memory issue while increasing custom characteristics value. Is there any limitation for max no of characteristics in custom service. If occurs how can we resolve that.

[Amanda Hsieh]

Hi Pavan,

Currently we are facing services permission error sometimes. what could the reason for that.

Please make sure you configure your characteristic correctly. As you probably know this is done using sd_ble_gatts_characteristic_add. Make sure you do configure both char_md and attr_md, and that you memset these before you configure them. Check out ble-characteristics-a-beginners-tutorial 

 

Is there any limitation for max no of characteristics in custom service. If occurs how can we resolve that.

 It is not an exact number. It depends on different factors. I think the log will indicate that. 

-Amanda H.