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Hi there,
I enable NMI for alarm and ESR1
However, when I trigger a software alram, TLF35584 "sometime" will have an Interrupt due to "Pre-regulator voltage under voltage status flag" or "ommunication LDO under voltage status flag" and WWD,MCU error. Why there will be a under voltage problem?
best regards,
Leon
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Hi,
1. You can check the value of the alarm status register on triggering a software alarm to confirm the active alarms.
2. Can you configure "No Action" for the software alarm instead of an NMI and "No FSP" configured for this and check the behavior?
3. Could you elaborate more about "TLF35584 "sometime" will have an Interrupt due to "Pre-regulator voltage under voltage status flag" or "ommunication LDO under voltage status flag" and WWD,MCU error. " ? From, where are these flags and errors read?
Best Regards.
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Thank you,
1. The software alarm is triggered.
2&3. 35584 will detect an error, it will make an interrupt and trigger ESR1 pin. Then, I will read 35584's register during NMI. Actually, The problem hasn't appeared in a while, and I don't know why...
I would like to know why the 35584 will detect an under voltage problem when I trigger an alarm?
best regards,
Leon