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MCUs are all about peripherals. The ISA barely matters. The peripherals are frequently ported forward unchanged or enhanced in forward compatible ways from ol
by topspin 3y ago
MCUs are all about peripherals. The ISA barely matters. The peripherals are frequently ported forward unchanged or enhanced in forward compatible ways from older MCUs with different ISAs because they are specialized, proprietary, carefully refined circuits and developers can port their working C peripheral drivers with minimal change. You can't helicopter in to that market with your half baked, brand new peripheral suite and expect everyone to adopt it.
Intel did go far in set top boxes and smart TVs with their atom/canmore (SoC, not MCU) platform in ~2008 and onward. I ported some media software to it. I think a lot of that has been given back to ARM and Android since, however.