How to expand the "ANT_CONFIG_TOTAL_CHANNELS_ALLOCATED" number?

RE: How to expand the "ANT_CONFIG_TOTAL_CHANNELS_ALLOCATED" number?

Kenneth — Tue, 27 Feb 2018 10:04:32 GMT

Yes, you may also find this thread informative: https://www.thisisant.com/forum/viewthread/4417

RE: How to expand the "ANT_CONFIG_TOTAL_CHANNELS_ALLOCATED" number?

WenLiYong — Tue, 27 Feb 2018 03:58:27 GMT

Hi Kenneth,

Thank you for your reply.

Yes, My project is received from all ANT+ devices nearby. e.g. HR, SPD. But I only receive 16 devices for the limitation of ANT_CONFIG_TOTAL_CHANNELS_ALLOCATED and MAX_ANT_CHANNELS.

By your advise, use continuous scanning mode. I don't know how to do? Can I study demo at "example\ant\ant_continuous_scanning_controller" ?

Yong

RE: How to expand the "ANT_CONFIG_TOTAL_CHANNELS_ALLOCATED" number?

Kenneth — Mon, 26 Feb 2018 12:43:55 GMT

Have you considered just use continuous scanning mode instead of having 15 unique channels? Using scanning mode will allow you to receive from all ANT+ devices nearby.

RE: How to expand the "ANT_CONFIG_TOTAL_CHANNELS_ALLOCATED" number?

WenLiYong — Mon, 26 Feb 2018 07:30:14 GMT

Hi,
In SDK_12.3\examples\ant\ant_multi_channels\rx example code, MCU is 52832, the MAX_ANT_CHANNELS and ANT_CONFIG_TOTAL_CHANNELS_ALLOCATED parameter are all defined 15.
If change the two parameters to 60, the sd_ant_enable() will return NRF_ERROR_INVALID_PARAM error. Why??

uint32_t ant_stack_static_config(void)
{
    ASSERT(ANT_CONFIG_TOTAL_CHANNELS_ALLOCATED <= MAX_ANT_CHANNELS);
    ASSERT(ANT_CONFIG_ENCRYPTED_CHANNELS <= ANT_CONFIG_TOTAL_CHANNELS_ALLOCATED);

    ANT_ENABLE m_ant_enable_cfg =
    {
        .ucTotalNumberOfChannels        = ANT_CONFIG_TOTAL_CHANNELS_ALLOCATED,
        .ucNumberOfEncryptedChannels    = ANT_CONFIG_ENCRYPTED_CHANNELS,
        .pucMemoryBlockStartLocation    = ant_stack_buffer.u8,
        .usMemoryBlockByteSize          = ANT_BUFFER_SIZE_FOR_SD
    };

    return sd_ant_enable(&m_ant_enable_cfg);
}

Please advise. Thank You. The project is urgent!!

Yong

RE: How to expand the "ANT_CONFIG_TOTAL_CHANNELS_ALLOCATED" number?

WenLiYong — Mon, 26 Feb 2018 04:27:44 GMT

The enviorement is SDK_12.3\examples\ant\ant_multi_channels\rx. If change ANT_CONFIG_TOTAL_CHANNELS_ALLOCATED and MAX_ANT_CHANNELS value more than 15. err_code = ant_stack_static_config() will occur NRF_ERROR_INVALID_PARAM error messgae.