2015-01-15 09:08 PM
Hello!
I need to have 16-bit audio, 4 channels (at least) input with STM32. Has anybody developed something like this? I found many ADCs on the net, but how to get ADC data without spending too much time on interrupts? I mean: if I have one interrupt for every sample at 48 kHz, the processor might become quite busy. The ideal case would be an ADC with some internal buffer that I can fetch once it's full. Internal ADC would be ideal, but 16-bit devices are only in some F3 devices running at 72 MHz, and since I need some graphics performance as well, so 429 is almost a must. Any hint is welcome. Thanks, Pascal #16-bit-adc2015-01-16 12:02 AM
> Any hint is welcome.
Two hints for you: I2S, DMA. JW