Hello,
I'm working with a nrf51822, SoftDevice S120 v2.0 and SDK v9.0 platform.
Specifically using it a Central role to connect to a Blood Pressure peripheral.
I'm trying to read the Battery Level (BLE_UUID_BATTERY_LEVEL_CHAR) char.
When I initially send the sd_ble_gattc_read() command I get a BLE_GATTC_EVT_READ_RSP but the peripheral complains I don't have BLE_GATT_STATUS_ATTERR_INSUF_AUTHENTICATION. (this is a seperate issue I need to work out myself)
I then call dm_security_setup_req() again which results DM_EVT_LINK_SECURED.
After which I call sd_ble_gattc_read() read again on BLE_UUID_BATTERY_LEVEL_CHAR.
This BLE_GATT_STATUS_ATTERR_INSUF_AUTHENTICATION + DM_EVT_LINK_SECURED + sd_ble_gattc_read() loop continues for around 23 times and then suddenly sd_ble_gattc_read() results in a NRF_ERROR_INVALID_DATA (0x011) error and the loop stops.
Is this some kind of protection to prevent loops? or something else?
Thanks very much, Mark
