Thanks, however I'm specifically looking for audio. For example, music, samples, etc. A tone is not enough for what I'm looking for. Or did I miss something and the audio_tone is actually more than just a tone?
Op za 22 feb 2025 om 22:05 schreef TimH <t...@jti.uk.com.invalid>: > CONFIG_AUDIO_TONE? > > Not sure if that’s exactly what you’re after but could be? > > > On 22 Feb 2025, at 17:12, Kevin Witteveen <kevinwit1...@gmail.com> > wrote: > > > > Hi nuttx, > > > > I need an audio device that can generate sound using PWM on the RP2040. > It > > appears nothing already exists for this. > > What would be a good way to implement this? > > > > My previous implementation outside NuttX was to use DMA to feed samples > > into a PWM register. Relatively simple. > > However, in NuttX i now need to combine the PWM implementation with the > > DMAC implementation. This is where I'm not sure how to "connect them > > together" on a proper "nuttx" way. > > Then also have it show up as an audio device. > > > > in case you wonder about the concept PWM audio. It is a common way to > > generate audio. It is how class-D amplifiers work. This is because the > duty > > cycle of PWM when filtered becomes an analog signal. A very cheap way to > > implement audio in systems. > > > > Are there any examples of projects out there that did this with Nuttx? > > Or are there any people that have an idea how to take this project on? > > Where do i begin? Where would i implement this? Board? Architecture? > > > > I would appreciate any help > >
