Could I use a PowerPSoC in An Open Hardware/Software project ?

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Headroom

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Need some community opinion on this question.
In my current LED lighting systems I am using this three channel High Power RGB LED Arduino Shield. This is based on an existing but abandoned OSHW project that I re-designed.
These micro I am using in the lighting systems in naturally a Teensy ;-)

However, I have ideas for a system that uses RGBW LEDs such as these or these.

I've been looking for a while for a 4-Channel replacement for the Lt3496 from Linear Technology and recently came across the PowerPSoC, which is basically an LED controller with a built in 8-bit microcontroller. In order to program that microcontroller and set up the LED driver for e.g. Buck configuration one would need the specific software from Cypress and the programmer.

However I could imagine a similar set-up to the current Shield where a user interfaces with the Shield through I2C or preferably RS485 by means of an Arduino library and hardware design would naturally be open.

So the question is if that approach would still lend itself to an open software/hardware project ?
 
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