Adding ANT to BLE application

RE: Adding ANT to BLE application

Kenneth — Thu, 10 Dec 2020 08:05:43 GMT

The only thing I can think of is that you have not made sure that the 'channel_number' is different between the ANT channels you configure, e.g:

For TX make sure that sd_ant_channel_assign(0,....); sd_ant_channel_id_set(0,....); and so on
For RX make sure that sd_ant_channel_assign(1,....); sd_ant_channel_id_set(1,....); and so on

This 'channel_number' parameter is only a local handle and does not affect the on-air data. If you have more than 2 channels then increment the 'channel_number' further for each channel you configure (e.g. 2, 3, 4, 5, 6....).

RE: Adding ANT to BLE application

Aftab — Wed, 09 Dec 2020 13:47:43 GMT

I am taking RX, TX code from these broadcast examples.

RE: Adding ANT to BLE application

Kenneth — Wed, 09 Dec 2020 12:56:16 GMT

Maybe the basic ANT RX and TX examples can be useful:

https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.0.2/ant_examples_broadcast.html

RE: Adding ANT to BLE application

Aftab — Wed, 09 Dec 2020 09:53:42 GMT

Thanks for the reply.

I have successfully added broadcast TX functionality in one of the project, here I wanted to add ANT broadcast RX functionality. Everything I have compared is same way. But there is something I am missing specific to the RX functionality I am trying to figure out.

RE: Adding ANT to BLE application

Kenneth — Wed, 09 Dec 2020 08:44:03 GMT

In general it may be easier to start off with a project setup with the correct softdevice and add the source file to that project:
\nRF5_SDK_17.0.2_d674dde\examples\multiprotocol\ble_ant_app_hrm\pca10056

You may consider opening the .emproject in notepad for S340 and S140 and compare for preprocessor defines, include files, and other configuration between the two.

Kenneth

RE: Adding ANT to BLE application

Aftab — Wed, 09 Dec 2020 08:26:24 GMT

Although I was able to compile the project correctly with this change but the project would not run on the dev board. I tried to debug but could not figure out where the problem is. Has anybody migrated his/her app from S140 to S340?

RE: Adding ANT to BLE application

Aftab — Tue, 08 Dec 2020 09:03:59 GMT

Adding following line to flash_placement.xml file is actual way of solving this problem:

< ProgramSection alignment="4" keep="Yes" load="Yes" name=".sdh_ant_observers" inputsections="*(SORT(.sdh_ant_observers*))" address_symbol="__start_sdh_ant_observers" end_symbol="__stop_sdh_ant_observers" />