ANT proximity search S332 SDK12.2.0

[dtt60]

Hi,

I work on a ANT proximity search project using SDK12.2.0 and softdevice S332v2.0.1 on nRF52832.

I have a ANT sensor which is 5cm apart from the Nordic 52832. And the search timeout and low priority search timeout are set as follow.

ret = sd_ant_channel_rx_search_timeout_set( channel, 2);

ret = sd_ant_channel_low_priority_rx_search_timeout_set( channel, 10);

A success return code can be received after executing both of the above settings.

Then start the ANT proximity search,

case 1) When executing "ret = sd_ant_prox_search_set( channel, 4, 0);", the return code of "ret" is 0( success) and nRF52832 can not search the ANT sensor

case 2) After 10s, executing "ret = sd_ant_prox_search_set( channel, 7, 0);", the return code of "ret" is 0( success) and nRF52832 still can not search the ANT sensor

case 3) then after 10s, executing "ret = sd_ant_prox_search_set( channel, 0, 0);", the return code of "ret" is 0( success) and nRF52832 can search the ANT sensor

Can you share an idea why the ANT sensor can not be received in case 1 and case 2?

Thanks

dtt

[Kenneth]

Hi,

You may find this document useful:
https://www.thisisant.com/resources/an12-proximity-search/ 

Have you tried the other thresholds? Have you also called open channel after setting threshold?

Best regards,
Kenneth

[dtt60]

Open channel is ok. Thanks.