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CC1310 RX Packet with WOR

Riccardo Cardinali83
Prodigy 60 points
Other Parts Discussed in Thread: CC1310

Hi All,


I'm developing a sensors project and we are very interested in CC1310. The final project will be composed of many end devices (sensors) and a gateway that will receive the data from the end devices and it will transmit to a server by a cabled connection like Ethernet.

My problem is this:

The end devices are battery supplied, so the target is to get the max battery life, I could get this result by putting the devices in standby mode, for example I get a sample of my sensor (humidity) every 5 minutes, I transmit it to the gateway (that it's power supplied and always in RX mode) and I reput the CC1310 in standby.

I need also to receive data from the gateway, in asyncronous mode: the end devices have 2 leds and the gateway must be able to turn on them by TX a command , so , if the end devices is in standby mode, how can it receive the data from the gateway ??? Are the CC1310 equipped with a Wake on Radio function? I thought also to use an escamotage like the BLE Advertising Packet: transmit a small "presence" packet  from the end deviceto the gateway every second and after open an RX window on the end device, in this window the gateway can transmit commands. This solution might work but is much expensive about battery life and will generate much RF traffic.

In the next days I'll get the CC1310 DK to work to my project.

Thanks!!


Riccardo

  • 0
    TI__Guru* 79271 points

    The CC1310 has a command called CMD_RX_SNIFF that can be called at a given interval. It will take the chip from standby (if the CM3 is not doing something else that keeps it awake) to RX, look for a carrier and/or a preamble. If there is nothing in the channel, it will take the chip back to standby. If there is something there, it will continue in RX (for a programmable time) and look for sync. The command will be available in the December release of the TI-RTOS.

    Siri