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CC2567-PAN1327 or CC2570

Jonthornham
Expert 1490 points
Other Parts Discussed in Thread: CC2570, CC2567, CC2571

I am new to microcontroller so please bare with me.  I am learning about microcontrollers because I want to create an ANT+ sensors for fitness equipment.  I understand I need to use an MSP430 and an antenna to transmit data to the host device.  I also understand that ANT is regulated by Dynastream.  However I am confused with the following.  

If I look at the RF connectivity page on TI's site http://focus.ti.com/mcu/docs/mcuorphan.tsp?contentId=24576&DCMP=MSP430Wireless&HQS=Other+EM+430wireless#pan Under the personal area network table there are two options for ANT devices.  The first is the ANT + Bluetooth which uses the CC2567 transceiver.  The second option is the ANT+ device which uses the CC2570 which is a Network Processor.  

Q1.  What is the difference between a transceiver and a Network Processor?

Q2. Can I use the ANT+ Bluetooth setup in a sensor.  For example could I use this in a heart rate monitor and read heart rate on an ANT+ device or a Bluetooth device?  Or is this not how the ANT+ Bluetooth configurations works?

Q3.  If the answer to Q2 is no is my only option the CC2570?

Thanks,

Jon

  • 0
    TI__Genius 9990 points

    Jon,

     

    A1. In this case the Network Processor is a transceiver and extra layers (the ANT protocol). Most transceivers are raw BPSK/FSK/ etc and don't do anything more. Network processors refers to the fact that it in fact implements a protocol, offloading the MCU.

     

    Q2. Of course you can use the ANT+Bluetooth setup in a sensor. The ANT+Bluetooth uses the Bluetooth for some specific function (to connect to a bluetooth device) either standalone or as an aggregator (taking ANT data and forwarding it over a Bluetooth link).

     

    A3. You can create a network of CC2570/CC2571 devices that talk to the ANT+Bluetooth solution, so that the ANT information will be delivered via Bluetooth, while the actual sensors use ANT.

     

    Gustavo

  • 0 in reply to Gustavo L
    Expert 1490 points

    Thanks Gustavo.  Just to be clear I could use the CC2567 in a heart rate monitor and talk directly with a Bluethooth device (iPhone), or talk directly with an ANT+ device (Garmin)?

    Take care,

    Jon

  • 0
    Intellectual 870 points

    Yes, it is possible to use ANT and BT at the same time in the CC2567 if that is desired. However, because of the high power consumption for the CC2567 compared to the CC2570, it is not generally a good idea to use the CC2567 for a sensor. In devices where small power budget is key (i.e. a HRM), use of the CC2567 is probably not going to yield a successful product.  

  • 0 in reply to Kassandra Rizopoulos
    Expert 1490 points

    Kassandra,

    Thanks for this info.  Being new to this I most likely would have overlooked this issue which would not be good in the long run.  I will look into using the CC2570.

    Take care,

    Jon