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TPS6594-Q1: questions about registers

Lijia Zhu
Expert 5700 points
Part Number: TPS6594-Q1

Hi team,

1. Is there any register to reset the WD long window timer to 0?  After resetting that timer, we can get an additional long window time, the time is equal to the setting in WD_LONGWIN_CFG.

2. We can clear the RECOV_CNT by setting bit RECOV_CNT_REG_2 before it reaches the RECOV_CNT_THR, right? I try on EVM but I can't create the scenario with RECOV_CNT less than RECOV_CNT_THR. could you help to confirm?

3. The setting for WD is kept after a warm reset(for example, WD long window time out), right?

 B&R

Lijia

  • +1
    TI__Mastermind 25725 points

    Hello Lijia,

    Lijia Zhu said:
    We can clear the RECOV_CNT by setting bit RECOV_CNT_REG_2 before it reaches the RECOV_CNT_THR, right? I try on EVM but I can't create the scenario with RECOV_CNT less than RECOV_CNT_THR. could you help to confirm?

    Yes, writing 1 to RECOV_CNT_CLR will clear the count. An easy way to replicate this is to execute a soft reboot by writing 1 to SOFT_REBOOT bit. This will cause and orderly shutdown and recovery along with incrementing the RECOV_CNT.

    Lijia Zhu said:
    The setting for WD is kept after a warm reset(for example, WD long window time out), right?

    Correct.

    Lijia Zhu said:
    Is there any register to reset the WD long window timer to 0?  After resetting that timer, we can get an additional long window time, the time is equal to the setting in WD_LONGWIN_CFG.

    No, there isn't a single bit write that will set WD_LONGWIN to 0x00. The register must be written directly.