• State Resolved
  • Locked Locked
  • Replies 2 replies
  • Subscribers 63 subscribers
  • Views 883 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.

TPS65217 software controlled shutdown

DavidVescovi
Genius 5470 points

according to the data sheet it looks to be possible to do a full shut down (off) (without controlling the PWR_EN) by sending a SEQDWN command to the password protected SEQ6 register.

In my case it is not happening even though I know I am writing to the register correctly. I tried to set the OFF bit in the STATUS register also. Nothing works. What is the proper commands to trigger a full shut down without controlling the PWR_EN pin?

  • 0
    Genius 5470 points

    never mind got it working...bit mask wrong.

  • 0 in reply to DavidVescovi
    Prodigy 215 points
    Hello David,
    Sorry to ask you about an old post, but it looks like you were successful in shutting down the PMIC+Sitara by using the SEQDWN bit.
    I am about to use the same technique and I would like to know if there is anything I should be concerned about or it works as easy as it seems.
    My goal is to be able to quickly shut the board down and have the proper power-down sequence in the Sitara.
    Doing it through the PMIC_POWER_EN pin seems to require the use of the RTC and some delays are impossible to avoid.
    Thanks,
    Max