How to receive data from different ant sensors?

[WYL]

Dear all, Recently,i use nrf51422 trying to receive data from two ant sensor. i assign two ant rx channels at the same time, i find i can't receive data if only one sensor transmit data. I think is it improssible to open more rx channel at the same time. How can i do to solve this problem?

Thanks.

[testy]

It's possible to open even 8 slave channels on the nRF51422 at the same time, but HIGH priority search timeout (sd_ant_channel_rx_search_timeout_set) should be disabled (this kind of search interrupts other open channels) and LOW priority search increased (sd_ant_channel_low_priority_rx_search_timeout_set).

[Kenneth]

I believe your question is answered already, but you should use low priority search timeout instead of high priority search timeout for the searching channels, this will ensure that an already tracking channel have priority over the search. This is described in detail in ANT AN ANT Channel Search and Background Scanning Channel (application note) on www.thisisant.com

Hope that helps, Kenneth

[Wojciech Jasko]

Actually up to 16 channels

[testy]

1. Actually up to 15 channels with S210 v5.0.0 or S310 v3.0.0

2. sd_ant_capabilities_get returns 0x0F as "Maximum supported ANT channels", valid channels are 0-14

3. SDK 9.0.0 release_notes.txt AND infocenter.nordicsemi.com/.../index.html: Changes: Both the S310 and the S210 SoftDevices now support an extended number of ANT channels (16) is misinformation