CC1312R: ApiMac_attribute_logicalChannel: does ApiMac_mlmeStartReq() reset this somehow?

Hi,

Setting the logicalChannel field for the ApiMac_mlmeStartReq_t should be sufficient (verified on collector from 3.40 SDK).

Can you share a code snippet of your calling ApiMac_mlmeStartReq

Regards,
Toby

Hi,

Many thanks for your response. Here is the code snippet. I don't perform any scans immediately before calling this as it's being set up manually with information taken from the Sensor join process. 

static void sendStartReq(bool startFH)
{
    ApiMac_mlmeStartReq_t startReq;
    memset(&startReq, 0, sizeof(ApiMac_mlmeStartReq_t));

    /* read network parameters fill them in start req */
    startReq.startTime = 0;
    startReq.panId = coordInfoBlock.panID;
    startReq.logicalChannel = coordInfoBlock.channel;
    startReq.channelPage = CONFIG_CHANNEL_PAGE;
    startReq.phyID = CONFIG_PHY_ID;
    startReq.beaconOrder = CONFIG_MAC_BEACON_ORDER;
    startReq.superframeOrder = CONFIG_MAC_SUPERFRAME_ORDER;
    startReq.panCoordinator = false;
    startReq.batteryLifeExt = false;
    startReq.coordRealignment = false;
    startReq.realignSec.securityLevel = false;
    startReq.startFH = startFH;
    startReq.mpmParams.offsetTimeSlot = CLLC_OFFSET_TIMESLOT;
    startReq.mpmParams.eBeaconOrder = CLLC_EBEACONORDER;
    startReq.mpmParams.NBPANEBeaconOrder = CLLC_NBPANEBEACONORDER;
    startReq.mpmParams.pIEIDs = NULL;

    /* send Start Req to MAC API */
    ApiMac_mlmeStartReq(&startReq);
}

As I mentioned previously, if I insert the following it works as expected. It'd be nice to know why this is required.

ApiMac_mlmeSetReqUint8(ApiMac_attribute_logicalChannel, coordInfoBlock.channel);

Thanks,

Andy

When you say that this information is taken from the join process, is this the join process performed the first time (in channel 0)? In other words, what values do you see in coordInfoBlock (specifically in coordInfoBlock.channel)? This needs to match the channel you intend to join on.

Hi,

Using SysConfig I have set all devices to channel 1 only. That are no other channels are enabled. I program a completely new network with all flash fully erased prior to loading the hex file. The Router will perform a scan for a network on channel 1 only, in exactly the same way a Sensor would. It then joins a parent, this might be the Pan-Coordinator or another Router. After it has joined, my application starts a non-Pan-Coordinator within the Router application. As it already has all network information from the Sensor-type network join just performed, I manually start the non-Pan-Coordinator side. This works perfectly when the channel is set to zero in SysConfig, but setting to channel 1 does not work as the ApiMac_attribute_logicalChannel value is set to zero after ApiMac_mlmeStartReq() is called.

I have the Pan_coordinator set to channel 1 too of course, and this works fine, so it's clearly something I'm not doing correctly in the Router application, but I cannot think what. It would be helpful to know what can change ApiMac_attribute_logicalChannel  to zero.

I've taken screen shots to show this. Below is a debug capture showing the values when calling ApiMac_mlmeStartReq(), and then a screenshot showing that ApiMac_attribute_logicalChannel is set to zero after the ApiMac_mlmeStartReq() callback which runs the startCnf in processState().

Thanks,

Andy