what is the maximum FSMC_CLK value for STM32F2 series?

[Pranay Dhuri]

Posted on April 21, 2017 at 14:49

Hi,

I am trying to set freq for FSMC, I am using STM32CubeMX for code generation.

In clock configuration segment which clock is related with FSMC(is it APB1 peripheral clocks???).

Please find the attached image file for more clarification of my question.

[Tesla DeLorean]

Posted on April 21, 2017 at 15:02

The FSMC is on the AHB not APB

[Pranay Dhuri]

Posted on April 21, 2017 at 15:12

Yes, thanks..please have a look into attached file..in that which clock is actually going for FSMC? and what will be the maximum frequency if F2 series has 120MHz operating frequency?

[Tesla DeLorean]

Posted on April 22, 2017 at 04:19

Here's the Reference Manual, look at that

http://www.st.com/content/ccc/resource/technical/document/reference_manual/51/f7/f3/06/cd/b6/46/ec/CD00225773.pdf/files/CD00225773.pdf/jcr:content/translations/en.CD00225773.pdf

 

Like I said, it is on the AHB, so the HCLK. The manual also tells you it halves the clock at minimum, and can get slower if you want.