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Wake up CC25xx by RF interrupts

XY CH
Intellectual 360 points
Other Parts Discussed in Thread: CC2500, CC2533, CC2510

I am wondering is there any way to wake up CC25xx chip from low power mode (PM1 2 or 3) to active mode?

If no, is there any way to switch power modes wirelessly? cuz we are going to embed the whole system into certain material.

Thank you for your attention.

  • 0
    TI__Genius 14940 points

    Asking to wake up a CC25xx chip is rather vague as this wild card covers various types of components.

    That said, if you are talking a CC251x or CC253x, these parts have an 8051 microprocessor on board and they can be brought out of low power mode by toggling an I/O pin (PM3), having the sleep timer generate an interrupt (PM2, PM3), or several other peripherals could generate an interrupt (PM1, PM2, PM3).  See the data sheet for the specific part for more information.

    If you are talking about a CC2500 RF front end, this part has a Wake On Radio functionality in which the radio can be programmed to periodically come out of low power mode and listen for RF traffic.  If it finds a sync mark it receives the packet and if it passes all enabled validation checks, it will interrupt the controlling processor (to wake it up if need be).

    Regards,

    Jim Noxon

  • 0 in reply to Jim Noxon
    Intellectual 360 points

    Thank you for your reply Jim and sorry for the confusing model spec.

    I am now considering CC2510 and CC2533. It seems to me that I can not activate those chips via RF interrupt according to datasheet

    Regards

    XYCH

  • 0 in reply to XY CH
    TI__Genius 14940 points

    Yes and no.

    If you want to go to PM1, PM2, or PM3, then no because the radio cannot run without the high speed oscillator operating.

    If you can operate in PM0, then the radio can wakeup the processor via a normal interrupt from the radio.  However, from your earliar post, this is not one of the modes you want to use.

    Regards,

    Jim Noxon