• State TI Thinks Resolved
  • Replies 3 replies
  • Answers 2 answers
  • Subscribers 64 subscribers
  • Views 60 views
  • Users 0 members are here
Support feedback
Options
Options
Related

TPS389006-Q1: Full device reset

Tom Levisse
Prodigy 60 points
Part Number: TPS389006-Q1

Tool/software:

Hello

I am using a TPS38900603NRTERQ1, In rare case I cannot clear interrupt flags nor configure the chip because the protection registers are enabled.

I saw in the datasheet that I can launch a full-device reset by setting VMON_CTL.RESET_PROT = 1, but In that case it did not resolve the problem.

I am not sure of how to do it properly. Could you explain the workflow ?

Best regards,

Tom LEVISSE

  • 0
    TI__Genius 9880 points

    Hi Tom, 

    Thanks for your question.

    Yes, once you enable protection register, you should not be able yo configure the device. 

    RESET_PROT is part of the WRKC register set therefore if the user desires to use RESET_PROT’s functionality WRKC protection should be included when configuring PROT1 and PROT2 protection registers. If WRKC protection is enabled when configuring PROT1 and PROT2 then protection registers can only be reset through a device power cycle.

    Since you'd seem like you want to keep the RESET functionality (to reset PROT1 and PROT2 the user can utilize RESET_PROT, bit 3 of the VMON_CTL register) I recommend not setting WRKC protection. 

    Best,

    Sila,

  • 0 in reply to Sila Atalar
    Prodigy 60 points

    Hello,

    Thanks for the information.

    I thought that the registers were enabling with the Chip itself.
    I have now solved the problem.

    Thanks,

    Tom LEVISSE

  • 0 in reply to Tom Levisse
    TI__Genius 9880 points

    Hi Tom,

    I'm happy that your problem resolved.

    Best Regards,

    Sila