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SPI2 Frequency of the STM32F469BIT7

deeksha23jan
Associate

EMB1428QSQ/NOPB is used which has the frequency of the 1.1MHz fclk and the SPI2 of STM32F469BIT7 is going as a clock to it. I need the minimum value of the SPI2 master that can be fed to the EMB1428QSQ/NOPB. Also, where can I find the minimum frequency of the communication interfaces , I have used the USART and SPI2.

1 ACCEPTED SOLUTION

Accepted Solutions
SofLit
ST Employee

Hello,

Why are you looking for the minimum freq value?

Only maximum values are provided in the datasheet:

SofLit_0-1730473577741.png

And you can go downto 1MHz for SPI

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.

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2 REPLIES 2
SofLit
ST Employee

Hello,

Why are you looking for the minimum freq value?

Only maximum values are provided in the datasheet:

SofLit_0-1730473577741.png

And you can go downto 1MHz for SPI

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.

@deeksha23jan wrote:

EMB1428QSQ/NOPB .


You mean this: https://www.ti.com/product/EMB1428Q/part-details/EMB1428QSQ/NOPB ?

 


@deeksha23jan wrote:

I need the minimum value of the SPI2 master that can be fed to the EMB1428QSQ/NOPB.

Also, where can I find the minimum frequency of the communication interfaces 


The minimum required by the EMB1428QSQ will be specified in the EMB1428QSQ datasheet;

The minimum that can be provided from the STM32 will be specified in the STM32 datasheet and/or Reference Manual:

https://www.st.com/en/microcontrollers-microprocessors/stm32f469bi.html#documentation