Ep 203: Flashlight Fuel Fails, Weird DMA Machines, and a 3D Printed Prosthetic Hand Flex
Hackaday Podcast
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The RP2040 DMA Hack Makes Another CPU Core
The RP2040 DMA hack makes another CPU core, and this is pretty crazy. He's using three different DMA's to A, fetch data, B, kind of execute that data and C then loop back around and update the first one. This is a really cool piece of work. I have no idea if it's practical. And he does say that he's able to play back at, when he's using an SPI DAC chip, 500,000 samples per second - more than a for audio. That's pretty damn fast, actually.
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