How to use LVD_LLW_IRQn ?

peter308 — Thu, 18 Apr 2019 06:17:55 GMT

I want to store data to FLASH after power off.

Re: How to use LVD_LLW_IRQn ?

kerryzhou — Fri, 19 Apr 2019 08:16:50 GMT

Next time, when you post the question, please also let us know the kinetis chip part number.

This time I will reply you directly.

If you want to store the data to flash after the power off, you can use the LVD function in the PMC, so you need to use the PMC interrupt when the Low voltage warning happen, the interrupt vector is:

The KEA reference manual Table 3-8. Interrupt vector assignments (continued).

About the LVD details, please read the KEA reference manual Chapter 13 Power Management Controller (PMC).

Please also associated with the KEA datasheet,

It defines the voltage warning threshold.

Please read the document carefully, then try it on your side.

Have a great day,
Kerry

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topic Re: How to use LVD_LLW_IRQn ? in Kinetis Microcontrollers

How to use LVD_LLW_IRQn ?

Re: How to use LVD_LLW_IRQn ?