Most ESP32 devices are on the small side from RTEMS PoV, plus harvard architecture is probably an issue as well. Even with external memory, I'm not sure if I'v

Most ESP32 devices are on the small side from RTEMS PoV, plus harvard architecture is probably an issue as well. Even with external memory, I'm not sure if I've seen any ESP32 with more than 8MB of SPI-attached RAM - this would be enough for RTEMS, but I'm not sure about viability of using SPI-attached SRAM as main memory. EDIT: Looking through processor supplements documentation for RTEMS, the 520kB of RAM in ESP32 would be enough. I guess RTEMS is simply less well known and its main users target heavier platforms whereas many people are fine with just the provided ESP32 toolkit as base "OS"