Is there software support for the full 12bit ADC? How does the ADC compare to that of a Teensy?


#1

Hi Everyone

I'm considering using the Axoloti for a project in which precise analog readings are important. I previously used a Teensy sampling my signal at 12bit resolution. Will I be able to access the full 12 bit resolution of the STM32F427 from within the patcher? Does anyone know how the noise level of the Axoloti compares to that of the Teensy at that resolution?

Thanks

Paul


#2

Sure

I have no experience with Teensy. I think a separate ADC will have better specs than one integrated in a microcontroller.

Could you tell a bit more about the application?


#3

I don't have a specific application. I am experimenting with various haptic feedback devices which I have been controlling with audio signals. I am trying to get the synchronization between an arbitrary analogue input and the haptic feedback I can generate to be as high as possible. I've been polling a teensy via a serial connection and generating the audio on my laptop using max/msp. I'm pretty sure the axoloti will help me reduce latency, but I'm worried that I might be sacrificing precision because I did not find a whole lot of documentation on the integrated adc.

Sounds like it's worth giving this a shot though.


#4

You can find ADC characteristics here in chapter 6.3.21
Prototyping haptic feedback devices sounds fun!