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 !

[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 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.

[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. 

 

[yentzee]

Thank you so much for your answer. I will try qäwhen I am at home. Is that a stable clocksource?

i might just buy another board with a quartz. 

[yentzee]

I just ordered a WaveShare CoreH743I STM32 MCU Core Board STM32H743IIT6 JTAG/SWD Debug Interface (WS16635)

I hope that this will di better. There is a 8mHz crystal on board and I think I should be able to use the settings from the post above.

Really looking forward to it as I had two nights with a terrible sounding 500 Hz testtone  running all the time sounding completely off due to sync issues. I