[sdiy] Some Audio DSP prototypes

Vladimir Pantelic vladoman at gmail.com
Sat Apr 16 09:56:06 CEST 2022


On 4/16/22 9:45 AM, Brian Willoughby wrote:

> Good point. There are certainly appropriate features for connecting to audio
> CODEC and other DAC or ADC chips. I got lucky, working with an 12-bit ADC
> chip with four GPIO pins that can be reported along with the conversion, plus
> the handful of GPIO on the DSP itself. The TMS320 actually has a Status
> Register bit that is directly output on a dedicated pin, which is really
> handy for low-impact debugging. The TMS320VC5506 has USB capability as well.

yes, but I am used to having 16 channels of 12-bit ADC right *ON* the MCU :)

> However, if there are a great deal of operations to perform, such as driving
> an LCD or reading a giant button matrix, then it's really popular to pair a
> DSP and MCU. Usually, they're separate chips (which I find tedious since

Sure, BTDT, but with MCUs being scarce, adding a $$$ DSP to avoid using a scarce 
MCU and then needing an MCU afterall does not help me :)


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