[sdiy] STM32 Nucleo + mbed

[Gordonjcp]

On Fri, Dec 11, 2015 at 07:11:59PM +0000, Robert Spencer wrote:
> 
> Does anyone have any pointers? A nice tutorial would be good starting with the basics and slowly building up. TBH, it feels like this is quite bleeding edge so there’s not a lot of info out there.
> 

I've just bought some I2S DACs (PT8211, they cost pennies) to hang off an STM32.  Rather than mbed (which is interesting looking stuff that I haven't played with) I'm using just plain gcc-arm and libopencm3.

Some of the STM32s actually have half-way decent 12-bit DACs that are pretty fast, and could easily be multiplexed to drive separate outputs for a polysynth (digital oscillators, analogue filters - the best way to do a synth) and even if you don't have a DAC you can fake it with PWM.

You'd be surprised what you can get out of the humble atmega328, with a bit of PWM trickery ;-)

-- 
Gordonjcp