S140 return 0x11 error code when nRF52840 discover service

[Alice]

Hi,

I'm using the bluetooth 5.0 and base on the mutilink_center example to add a peripheral and a center. Because I want the center to connect two type device. It could scan and advertise, but when the center use sd_ble_gattc_primary_services_discover to discover service, it returns 0x11 error and then reset. I have debug it and found that the connection handle is 0x01, not 0x00, and the service UUID is what I want and correct.

Could you give me some advice? Thanks.

[Hung Bui]

Note that by default service discovery is started right after the device get connected. ble_db_discovery_start() called inside BLE_GAP_EVT_CONNECTED event in on_ble_evt() in the multilink_central example. If you re-use the example, you shouldn't call that call again at other places.

You may want to capture a sniffer trace to check what exactly happen over the air.

You can also try to make a simplified code that demonstrate the problem and send me.