NUS and dynamically allocated data

RE: NUS and dynamically allocated data

run_ar — Wed, 10 Nov 2021 08:55:40 GMT

Yes, it is copied to the TX buffers.

RE: NUS and dynamically allocated data

acarpenter — Tue, 09 Nov 2021 12:46:24 GMT

Thanks for the info. I'm not worried about losing the data if the link drops as much as I am about guaranteeing the data is still good in the best case scenario. When the data is placed in the tx buffer, is it copied in there so that I can free the old pointer to it?

Thanks

RE: NUS and dynamically allocated data

run_ar — Tue, 09 Nov 2021 12:04:50 GMT

Hi,

After a call to ble_nus_data_send, the data will be placed in the tx buffers. In case the link is dropped at this time, you will lose the data. So you need to wait for the TX_complete event. This it the message to the application that the packet has been sent and acked by (on the link layer) by the peer.