Combine HRM and Speed cadence ANT+ ?

RE: Combine HRM and Speed cadence ANT+ ?

Kenneth — Mon, 07 Dec 2020 11:15:35 GMT

Also see my comment on incrementing ANT channels, e.g. make sure all ANT channels you want to configure and use have a unique channel, e.g. incrementing something like:

SDM_CHANNEL_NUM 0

HRM_CHANNEL_NUM 1

BSC_CHANNEL_NUM 2

RE: Combine HRM and Speed cadence ANT+ ?

RixtronixLAB — Sat, 05 Dec 2020 23:27:44 GMT

I saw at hrm_rx sdk_config.h

// <o> NRF_SDH_ANT_TOTAL_CHANNELS_ALLOCATED - Allocated ANT channels.
#ifndef NRF_SDH_ANT_TOTAL_CHANNELS_ALLOCATED
#define NRF_SDH_ANT_TOTAL_CHANNELS_ALLOCATED 4
#endif

That's what you're talking about ?

It's working fine for bsc_rx with Garmin GSC10 and

hrm_rx with my HRM, but they are in separate code..

Thanks

RE: Combine HRM and Speed cadence ANT+ ?

RixtronixLAB — Sat, 05 Dec 2020 22:30:39 GMT

Hi Kenneth, thanks for the reply, I will test and keep posted.

RE: Combine HRM and Speed cadence ANT+ ?

Kenneth — Thu, 03 Dec 2020 16:28:24 GMT

I can't find any examples no. So you likely need to increments NRF_SDH_ANT_TOTAL_CHANNELS_ALLOCATED in sdk_config.h to support more than 1 channel.

Also, looking at ant_plus\ant_sdm as example: I can notice that SDM_SENS_CHANNEL_CONFIG_DEF() setup the channel number to be SDM_CHANNEL_NUM, this means that all communication for the SDM will occur with ANT channel SDM_CHANNEL_NUM, which is set to 0 in sdk_config. So any new ANT channel used (ANT or ANT+) should increment this value to 1 when calling ant_channel_init().

Also, check out this reply:
https://devzone.nordicsemi.com/f/nordic-q-a/47975/two-ant-profiles