Any way to store data (one word) to flash in case of disconnecting device?

matic · ‎2016-03-24

Posted on March 24, 2016 at 09:20

Hi. We have a variable (one word) which is changing constantly. Up to 200 times per second. We would like to store its value even if power goes down. Do you have any idea how to do that in the most elegant way?

We have STM32F303.

Thanks

Radosław · ‎2016-03-24

Posted on March 24, 2016 at 09:45

1. Flash or option bytes. Use PVD and program flash after this event. Flash programing is uses more current.

Tesla DeLorean · ‎2016-03-24

Posted on March 24, 2016 at 11:21

Does the part have battery backed RAM or RTC registers for such?

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matic · ‎2016-03-24

Posted on March 24, 2016 at 14:50

Yes, it has. That's it, if you take a look:

http://www.st.com/web/en/catalog/mmc/SC1169/SS1576/LN1531/PF253449