AN5142

[PAmsz.1]

Where can I find example source code for AN5142 ? I try to find it in STM32Cube_FW_G4_V1.1.0 without success.

[Simon V.]

Hello, thank you for your question.

The code source of the AN is not public but the principle can be easily found on the web...

Sorry for the inconvenient,

Kind regards,

Simon

[Tine1994]

Do you have any sources for this easy to find principle?

There are also libraries for the Cube IDE which you can implement DSP functions.

Are also example codes available until today?

[AScha.3]

oh great !  wanna build a d-amp ?

what kind dd , ad and modulator bd ? 

what you already built ? analog, ad digital amps ?

i attached a paper about ... read it. and then answer my questions.

( and "example codes available" was a good joke ! 🙂  )

[Tine1994]

Yes, until we build a Class D amplifier with a easy to handle via Software DSP ADAU1401, but Analog Devices did not support class D PWM audio output. So we whant to try STM32 for a Class D active speaker. And we see that there is no easy to handle software development envionment, we have to find libraries that implement Filters to use a STM32 as DSP. Thats our current state

[AScha.3]

so you might look at the existing (ready and working 😉  ) dig. amps , DDX is a word to search for. 

stm also making some...look.

https://www.st.com/en/audio-ics/digital-audio-power-amplifiers/products.html

( i build one witth such chip...10 y ago.)

[AScha.3]

STA309A   look...