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Associate
June 26, 2023
Question

STM32F767 SPI SLAVE DUMMY CYCLES AND FREQUENCY RELATION

  • June 26, 2023
  • 2 replies
  • 1086 views

Hi,

I am using a STM32F767zi nucleo board as  SPI full duplex slave. The dummy cycles of the slave device is varies in accordance with the master frequency change. How can I handle the dummy cycles independent of master frequency? What is the solution for making fixed dummy cycles for various master frequencies?

Thanks and regards, 

Arjun

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2 replies

AScha.3
Super User
June 26, 2023

you set: SPI full duplex slave , so all clock/cycles coming from master, you cannot change any clock on slave side.

you need to change at master.

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Arjun_ptyAuthor
Associate
June 26, 2023

I don't need to change the frequency from the slave side, I have to make the dummy cycles needed for the slave  independent of input master frequency.