About jmf1

jmf1 · 2024-07-27

Hello,I sort of feel *** not to get sure there not a best solution. I develop an Audio board, with USB HS. I will have a good 49.152MHz clock to drive the SAI, and I wanted to ue it for the HSE.49.152 * 125 / 256 = 24MHz that I need for the ULPI. Loo...

jmf1 · 2024-06-27

Hello,I use last version of CubeIDE 1.15.1CubeMX proposes in tools a CAD tab, that allows to export symbols and footprints for the different EDA packages (ex KiCAD).I use CubeIDE for my projects. In "Tools", there is a "CAD" sub-tab. But it leads to ...

jmf1 · 2024-06-20

Hello,I'm a hobbyist and I'm working on a USB to 4xI2S (8 channels using the SAIs) using a stm32H7 MCU. I have a proof of concept working on a stm32F7 discovery board. I'm starting to look at the dedicated board.I understand that the USB peripheral n...

jmf1 · 2024-02-19

Hello, I try to setup a working example of UAC1.0 USB to I2S - stereo 48kHz 16 bits on a stm32F4 discovery card (with CS43L22 CODEC). I try to get the project developed as far as possible on existing code from ST:STM32CubeIDE generated code,The board...

jmf1 · 2024-02-11

Hello,Short: I'm developing a USB to I2S bridge, hopefully multi-channels in the end. I don't understand ST designers intention about flow for I2S DMA callbacks . How to do it correctly as expected by ST designers, based on CubeMX generated code? Lon...

jmf1 · 2024-07-29

Thanks for the head up on the Teensy 4.1, the fact that it has USB HS peripheral, exposes I2S supporting TDM. This is almost perfect and I was about to stop my project and continue with the Teensy. There are however few features interesting for USB f...

jmf1 · 2024-07-28

About the clock scheme, this is mostly for learning how to do things "OK", and be sure I don't miss something usefull in the way to proceed.I had read in the documentation (datasheet and RM) that HSE had to be below 50MHz. You are right that CubeMX t...

jmf1 · 2024-07-15

Hello,Looking at some ST documentation for the STM32H7, a 25MHz crystal indicated as a good value for both Ethernet and USB.Using Cube MX, with such crystal, and the fracn feature of the H7, I can get a 48.000336 MHz for the USB peripheral.And for t...

jmf1 · 2024-07-03

Arghh... Today it is working. Maybe the fact to have rebooted and relaunched stm32cubeIDE. My bad. Sorry for the inconvenience.JMF

jmf1 · 2024-06-20

Thanks Asha to have made it so clear. I will follow your advice.I have to find the balance between two quotes I like a lot:- Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away (Antoine Saint Exu...

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stm32H7 clock scheme 49.152MHz to 24MHz and max MCU

CAD tool in STM32CubeIDE (as in CubeMX)

stm32H7 - USB application - HSE or HSI+CRS

stm32F4 USB to I2S using CubeIDE DMA-I2S send bytes twice (stammers)

CubeMX code / USB Audio class / Correct management of DMA callbacks between Driver BSP, USB audio?

Re: stm32H7 clock scheme 49.152MHz to 24MHz and max MCU

Re: stm32H7 clock scheme 49.152MHz to 24MHz and max MCU

Re: stm32H7 - USB application - HSE or HSI+CRS

Re: CAD tool in STM32CubeIDE (as in CubeMX)

Re: stm32H7 - USB application - HSE or HSI+CRS