RE: Notify Enable problem

Yinbun Ye — Fri, 03 Jan 2020 05:52:09 GMT

thx Vidor Berg, thx for your reply

RE: Notify Enable problem

Vidar Berg — Thu, 02 Jan 2020 13:00:59 GMT

Hi,

NRF_ERROR_BUSY indicates that another write request procedure is ongoing and that you need to wait for it to complete first (completion signaled through BLE_GATTC_EVT_WRITE_RSP). So I think it's timing related and not that you're using a hardcoded attribute handle.

Optional: with SDK 16 you can use the BLE GATT Queue module to enqueue the write request.

API reference: sd_ble_gattc_write and the MSC: GATTC Characteristic or Descriptor Value Write