Honestly, an MCU taking any more time than a couple milliseconds to boot is embarrassing. What exactly is taking so much time to load & set up? The rp2040 can run at 200mhz, and only has ~250 kb of ram. A one second boot up time would be equivalent to filling the entire memory with zeros 66 times. (Using all twelve channels of the DMA) And if you’re talking about setting up the OS, that would be around 800 instructions per byte. It just doesn’t make sense how that much time could be wasted.
Honestly, an MCU taking any more time than a couple milliseconds to boot is embarrassing. What exactly is taking so much time to load & set up? The rp2040 can run at 200mhz, and only has ~250 kb of ram. A one second boot up time would be equivalent to filling the entire memory with zeros 66 times. (Using all twelve channels of the DMA) And if you’re talking about setting up the OS, that would be around 800 instructions per byte. It just doesn’t make sense how that much time could be wasted.