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Visitor II
August 10, 2024
Solved

required flash wait states for stm32u575

  • August 10, 2024
  • 2 replies
  • 966 views

Where does one find documentation on the required flash wait states for stm32u575 running at a specific frequency and voltage range?

In these forums and on the internet I find a number of tables but they all seem to be for other products.  I've search all the documentation I can find in the ST doc site for this chip:

  • data sheets
  • reference manual
  • programmers manual
  • application notes
  • errata

I find all the information I need to set the wait states, but I find nothing that tells me how to calculate the proper value to set based on speedand voltage range.

Any help would be appreciated

 

Shawn

    This topic has been closed for replies.
    Best answer by waclawek.jan

    @TDK,

    that's for RAM.

    Here's the FLASH waitstates table(s):

    waclawekjan_0-1723315533310.png

    JW

     

    2 replies

    Super User
    August 10, 2024

    It's in the reference manual. It's 0 for the vast majority of cases.

    TDK_0-1723310436428.png

    rm0456-stm32u5-series-armbased-32bit-mcus-stmicroelectronics.pdf

     

    Super User
    August 10, 2024

    @TDK,

    that's for RAM.

    Here's the FLASH waitstates table(s):

    waclawekjan_0-1723315533310.png

    JW