Great Scott Gadgets HackRF - HackRF Block Diagrams

HackRF
I’d really love to be wrong about all this, but all my testing has indicated there’s no workable solution to using GPDMA
that’s any better than using SGPIO interrupts to transfer samples. If you want some sample GPDMA code to experiment
with, please contact Jared (sharebrained on #hackrf in Discord or IRC).
42 Chapter 13. LPC43xx SGPIO Configuration