• State Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 1 answer
  • Subscribers 33 subscribers
  • Views 1002 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.

TPS65987 SPI Flash Firmware Update process

Feng bin Su
Genius 9050 points

Part Number: TPS65987

My customer would like to consult with you which situation PD controller will re-load the flash data ?

Reset the PD controller using GAID for the device to load the new binary  ( Warm reset / Cold reset / HRESET / flash power supply off/…….? ). 

  • 0
    TI__Mastermind 36756 points

    Hi Feng,

    The GAID command would force the PD controller to reload from the SPI-Flash. Whenever the PD Controller loses power and reboots, the PD Controller will read from the SPI Flash. Additionally, a PD Hard Reset will cause the PD controller to reboot from the SPI Flash.

    Thank you,
    Eric

  • 0 in reply to Eric Beljaars
    TI__Genius 9050 points

    Hi Eric,

    My customer would like to consult with you.

    If not use GAID command, PD controller only power supply offàon. Will re-load flash ? We found if connect the C to A cable and LDO_3V3_A still have +3.3V even AC or DC off. We confirmed the flash didn’t re-load by waveform measurement when  AC or DC on. Would you please confirm it is an expected action ( no re-load flash) due to the flash power supply didn’t disappear ?  

    Thank for your kindly help.

  • 0 in reply to Feng bin Su
    TI__Mastermind 36756 points

    Hi Feng,

    That is correct, the PD controller would only reboot if there is no VBUS and VIN_3V3 gets turned off.

    Thank you,
    Eric