ANT Shared channel reverse message is not sent correctly

RE: ANT Shared channel reverse message is not sent correctly

Petter Myhre — Thu, 06 Oct 2016 11:16:13 GMT

Each slave in a shared channel network should have it's own unique 2byte address, this addess is set by calling a dummy sd_ant_broadcast_message_tx() on the slave, where the first 2 bytes is the address. All packets sent must have this fixed address. Channel type should be set to CHANNEL_TYPE_SHARED_SLAVE, as you have done.

If the master wants to broadcast data to all slaves, then it sets the first 2bytes in sd_ant_broadcast_message_tx() to 0. If the master wants to send a packet to a specific slave, then it must set the 2first bytes to the unique address of the slave, only then can the slave also send data in reverse direction.

Is this what you are doing? If you are, could you share your projects so I can test them here? You can edit your question and upload them there.

RE: ANT Shared channel reverse message is not sent correctly

Tommy_Hwang — Wed, 05 Oct 2016 16:02:49 GMT

I use the ant broadcast example. And I also see the shared channel example in the experimental folder for the shared channel.

I changed the transmission type to ANT_TRANS_TYPE_2_BYTE_SHARED_ADDRESS and channel type to CHANNEL_TYPE_SHARED_MASTER, CHANNEL_TYPE_SHARED_SLAVE.

And when the slaves start, they initiate the channel, and configure their own shared channel address using the broadcast message.

RE: ANT Shared channel reverse message is not sent correctly

Petter Myhre — Wed, 05 Oct 2016 12:47:23 GMT

What example are you using? Did you make any modifications? Please explain what you have done.

RE: ANT Shared channel reverse message is not sent correctly

Tommy_Hwang — Wed, 05 Oct 2016 11:05:29 GMT

I used SDK 11.0.0 version and The version of softdevice is 0.9.1.

All slaves receive all notification messages and the messages with their address.

RE: ANT Shared channel reverse message is not sent correctly

Petter Myhre — Wed, 05 Oct 2016 09:15:35 GMT

What SDK and SoftDevice version are you using? What example are you using? Did you make any modifications? Do all slaves receive all messages? Or only messages with their address?