3 ms·
No ESP32 contender, half the RAM and no I2S peripherals means audio applications are out. Too bad.
by MrBuddyCasino 6y ago
No ESP32 contender, half the RAM and no I2S peripherals means audio applications are out. Too bad.
- monocasa 6y agoHalf the RAM might be OK given that it seems to follow the 'execute out of a flash cache' rather than 'loading the image fully into RAM' strategy the ESP chips use. I could def be misunderstanding it though. And I2S being gone is very unfortunate, but I like chips with upstreamed LLVM backends enough that a really cheap CPLD as a SPI/I2S bridge wouldn't be the worst thing in the world for my designs I use for at home projects.
- ducktective 6y agoIt supports XIP QSPI Flash (https://en.wikipedia.org/wiki/Execute_in_place https://en.wikipedia.org/wiki/Execute_in_place). I wonder, wouldn't the loading of instructions be limited by QSPI speeds? (Much less than CPU clock speed)
- monocasa 6y agoThere's nearly always a cache sitting between the flash controller and the CPU when an XIP flash scheme is used, normally integrated in the flash controller itself.