RE: NUS example, authorize request, sd_ble_gatts_hvx

Hauser — Wed, 23 Mar 2016 07:59:18 GMT

Thank you! You are right, catching the BLE_GATTS_EVT_WRITE event does the job without any authorization workaround.

RE: NUS example, authorize request, sd_ble_gatts_hvx

Hung Bui — Tue, 22 Mar 2016 12:42:41 GMT

Hi Hauser,

You received 0x3401 = BLE_ERROR_GATTS_SYS_ATTR_MISSING because you haven't called sd_ble_gatts_sys_attr_set() to init the system attribute. Have you made sure you called that in BLE_GATTS_EVT_SYS_ATTR_MISSING even in on_ble_evt() ?

Also I don't really understand why do you need write with authorize request for this case. You can simply leave it as normal write, and catch the BLE_GATTS_EVT_WRITE even, and check for the handle ID of the CCCD characteristic. No need for authorized write here.