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16-bit audio with STM32F429

Question asked by rascalito on Jan 16, 2015
Latest reply on Jan 16, 2015 by waclawek.jan
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.