Clocksettings on Nucleo h753zi

[yentzee]

Hi,

I am completely new to the st family of microcontrollers and an amateur.

Before I had my setup running with an esp32 but I just missed the performance I need so I switched. I tried to configure within cubemx and import into platformio for furher development

I want to connect three audiodevices using i2s (2 receive, 1 send) with the stm generating the necessary clocks for it and I am really struggleing to do so. I want to run 48 kHz and was wondering if you have any ideas how to set it up properly. Thanks for helping

[mbarg.1]

Use STM32CubeIDE to generate an i2s example like AudioPlayer for STM32H7B3I-DK board - you will get all settings, eventually get a board to test it ...

H7 family shares the same setup for all I2s peripherals !

[yentzee]

Thanks a lot. I wil try once I am home

[Chaima_M]

Hello @yentzee ,

To create a new project, please refer to Section One, "Create New Project using STM32CubeMX of STM32StepByStep:Step2 Blink LED -stm32mcu" article to learn how to configure the appropriate clock for your application. For more detailed information, please consult RM0433 .

With best regards.

[mbarg.1]

I noticed that there is no ??.ioc for H7.

Here my code for 3 I2S plus ethernet & USB ... & 48kHz exact.

[yentzee]

Awesome, thanks a lot

[yentzee]

Thanks for your help. I am a total beginner so maybe I am completely missing the obvious but I think this is for another board / setup. I think the h753zi cant do 480 mhz.

Also I  am wondering. The board doesn't seem to have a quartz. I tried two nights configuring but had lots of jitter / drifting clocks. 

[Karl Yamashita]

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@yentzee wrote:

Thanks for your help. I am a total beginner so maybe I am completely missing the obvious but I think this is for another board / setup. I think the h753zi cant do 480 mhz.

Also I  am wondering. The board doesn't seem to have a quartz. I tried two nights configuring but had lots of jitter / drifting clocks. 

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Saying H753ZI doesn't tell us much. Nothing in your first post mentions if you're using a custom board or a development board. So are you using a Nucleo board? If so, you need to update the topic to say so.

[Karl Yamashita]

If you are using a NUCLEO-H753ZI then there are no external crystals but there is the MCO clock from the ST-Link.

You have to set up for High Speed Clock HSE

Only the CPU clock can run at 480MHz. The peripheral clocks can only run at 240/120MHz.