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CC2530 Power-Management

lee hyungho
Prodigy 50 points
Other Parts Discussed in Thread: CC2530

Hi,

I tried with the possible changes as per the  swru191b.pdf(page 59~63) CC2530 

PCON , SLEEPCMD

Question  Power-Management

1. PCON = 1; <-  power idele?
   SLEEPCMD =3; <-PM3?

2.Wakeup
   PCON = 0; <-  power active?
   SLEEPCMD =0; <- wake up?

 

  • 0
    TI__Genius 10955 points

    When going to power mode, you need to set the mode to go into first, using SLEEPCMD. Then you set PCON to 1 to actually go to power mode.  So change the order of your instructions. Also note that bit 2 of SLEEPCMD is reserved and must always be written as 1. So the correct code is:

    SLEEPCMD = (SLEEPCMD &  ~0x03) | 0x03;
    PCON = 1;

    Note that a special alignment is needed for the PCON instruction, cf. Section 4.2 in the user guide. The code I posted in this thread obtains that: http://e2e.ti.com/support/low_power_rf/f/155/t/69809.aspx.

    At wakeup, you do not need to modify any of the registers on CC2530. PCON will automatically be 0, and SLEEPCMD.MODE don't matter when you are in active mode.