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GS1
GS1
Senior III
March 16, 2018
Question

How many flash erase cycles in STM32H743

  • March 16, 2018
  • 6 replies
  • 2432 views
Posted on March 16, 2018 at 18:58

I would like to know the number of possible flash memory erase cycles apply for the STM32H743. I could not find the spec. in the Reference manual or on the ST home page. 

Is it  like 100 000 write/erase cycles? or less?

Thank you for any help!

#stm32h7-flash-cycles
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6 replies

Tesla DeLorean
Tesla DeLorean
Guru
March 16, 2018
Posted on March 16, 2018 at 19:24

Data Sheet says 10K cycles (NEND)

http://www.st.com/content/ccc/resource/technical/document/datasheet/group3/23/be/db/eb/29/39/4b/eb/DM00387108/files/DM00387108.pdf/jcr:content/translations/en.DM00387108.pdf

 

Table 52. Flash memory endurance and data retention

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GS1
GS1Author
Senior III
March 16, 2018
Posted on March 16, 2018 at 19:32

Thank you for the quick reply!  I should have checked the data sheet...

Bogdan Golab
Bogdan Golab
Lead
March 16, 2018
Posted on March 16, 2018 at 19:44

Maybe it's stupid but I load code to SRAM during the development phase to avoid re-flashing the MCU. I use Keil and it works quite well.

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