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29 August 2015 09:43 AM

MaximumTrainer Sr. Member

Total Posts: 123

Joined 2013-10-07

I use ANT+ CSM to receive/send data, I have to create other channels to send data to sensors.
From what I read, the channel is not really assigned, it is just using the radio resource.

The problem I have, I can assign the channel fine and send data to my sensor, but I am unable to close/unassign the channels once I am done with the sensors.

Any help appreciated,
Here is my code to open/close the CSM sending channels. I get an error when trying to close the CSM channels other than 0, and the channels stay open even after app close for some reason..
--Error closing channel: Code 021
Reopen app and you can still use the send channel again without configuring it!

void Hub::setLoad(int antID, bool fecTrainer, double load) {

        if (!fecTrainerChanConfigured) {
            configureSendChannelFEC(antID);
        }
        uint8_t aucTxBuf[ANT_STANDARD_DATA_PAYLOAD_SIZE];
        FEC_Controller::EncodeTrainerTargetPower(aucTxBuf, load);
        pclMessageObject->SendAcknowledgedData(constants::fecChannelNumber, aucTxBuf);
}


void Hub::configureSendChannelFEC(int antID) {

    qDebug() << "configureSendChannelFEC";
    bool bStatus = pclMessageObject->AssignChannel(constants::fecChannelNumber, 0, USER_NETWORK_NUM);
    bStatus = pclMessageObject->SetChannelID(constants::fecChannelNumber, antID, constants::fecDeviceType, constants::transTypeFec);
    if (bStatus) {
        fecTrainerChanConfigured = true;
        vecChannelUsed.append(constants::fecChannelNumber);
    }
}


void Hub::closeScanningModeChannel(bool closeShop) {

    bool bStatus = true;

    // Only close 1 channel (Channel 0), other channel are virtual channels?
    foreach(int chan, vecChannelUsed) {

        bStatus = pclMessageObject->CloseChannel(chan);
        if (bStatus)
            qDebug() << "CloseChannel Success" << chan;
        else
            qDebug() << "CloseChannel Error" << chan;

        bStatus = pclMessageObject->UnAssignChannel(chan);
        if (bStatus)
            qDebug() << "UnAssignChannel Success" << chan;
        else
            qDebug() << "UnAssignChannel Error" << chan;
    }
} 

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29 August 2015 10:31 AM #1

MaximumTrainer Sr. Member

Total Posts: 123

Joined 2013-10-07

Seems like using "configureSendChannelFEC(antID);" every time before sending a message will work. Hopefully doing this every second for many sensors isn't too resource heavy

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29 August 2015 01:09 PM #2

MaximumTrainer Sr. Member

Total Posts: 123

Joined 2013-10-07

Can send data to FE-C Trainer and Power Meter, but for some reason the KICKR is not accepting my ACK message using this method.. was working before with dedicated channels -_-

I use this to configure the channel to the PM/Kickr before sending:

void Hub::configureSendChannelPM(int antID) {

    qDebug() << "configureSendChannelPM Now";
    bool bStatus = pclMessageObject->AssignChannel(constants::pmChannelNumber, 0, USER_NETWORK_NUM);
    bStatus = pclMessageObject->SetChannelID(constants::pmChannelNumber, antID, constants::powerDeviceType, constants::transTypePower);
} 

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31 August 2015 09:13 AM #3

MaximumTrainer Sr. Member

Total Posts: 123

Joined 2013-10-07

Turns out you don't need to AssignChannel every time to send a message, if the last send was on the same channel, you just need to replace the ChannelID
Really wish the CSM documentation on how to send data to multiple device would be a bit more complete..
Thank you

void Hub::configureSendChannelFEC(int antID) {

    qDebug() << "configureSendChannelFEC";
    if (currentSendingChannel != constants::fecChannelNumber) {
        pclMessageObject->AssignChannel(constants::fecChannelNumber, 0, USER_NETWORK_NUM);
        currentSendingChannel = constants::fecChannelNumber;
    }
    pclMessageObject->SetChannelID(constants::fecChannelNumber, antID, constants::fecDeviceType, constants::transTypeFec);
} 

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ANT Forum

CSM - Closing Sending Channels

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