• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 30 subscribers
  • Views 719 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

IWR1443: Is there sleep mode or low power consumption?

Leon J
Prodigy 80 points
Part Number: IWR1443

  I'm now developing high accuracy app on iwr1443, in demo code it just uses "Semaphore_pend" for waiting the new messages coming, Could anyone tell me this is the lowest power consumption mode? or is there any sleep mode or other something I can set so that I can get the lowest power consumption? 

  I'll appreciate for any advice, thanks!

  • 0
    TI__Mastermind 37500 points
    The TIDEP - 0091 use of PMIC_EN from a host processor, is the primary method for turning off the radar when we are not actively measuring or computing.
    Host wakes from sleep
    Host enables PMIC_EN

    PMIC starts, sequences power to 1v2, 1v8,2v3,3v3 (or lower power 1v2, 1v0, 1v8, 3v3 swra577)
    PMIC outputs PGOOD

    Host releases nRST for mmwave sensor
    mmwave sensor boots from QSPI
    mmwave sensor sends Host Interrupt to Host

    (if radar profile, chirp, frame, config is stored in code, or QSPI) the MSS processes this.
    mmwave sensor Radar chirps, Radar Rx is processed in MSS(DSP)
    send Host Interrupt - so Host reads status
    Host receives LVDS or Host write/read SPI

    Host resets mmwave sensor nRST
    Host turns off PMIC_EN - PMIC off
    host process mmwave data
    host sleep

    REgards,
    Joe Quintal