• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 30 subscribers
  • Views 218 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.

TMS570LC4357: Is it possible to set a flag in Register that is not reset on nRST?

Max Wittekind
Expert 1875 points
Part Number: TMS570LC4357

Hi experts,

We are executing PBIST test of RAM on Start Up. Currently we are executing a nRST after the test is finnished, to make sure, that everything is correctly initialized.

The problem we are facing is that we need to set a flag somewhere which is not impacted by nRST. Since we are not using the FEE we would have to store such a flag in a device Register.

(Q1) Is there a register we can use, that is not impacted by a nRST?

Thank you and best regards,
Max

  • 0
    TI__Guru 70131 points

    Hi Max,

    In general, the contents of the registers are not preserved across a reset operation, so any data or program state that was stored in the registers will be lost. Therefore, it is important to save any critical data that needs to be preserved across a reset or power cycle to non-volatile memory, such as flash memory, EEPROM, or an external storage device.

    Let me again discuss with my team before giving confirmation.

    --

    Thanks & regards,
    Jagadish.