C3FN4 C3FH4 bypass embedded flash

[arigold]

Is it possible to bypass internal embedded flash in C3FN4 or C3FH4 with external flash?
I mean as a instruction (boot) flash of course, not only data flash memory.

[ESP_Sprite]

Kind of. You can use espefuse.py to configure the C3 to use a different GPIO to talk to the flash CS pin. If you then connect an external flash to the ESP32C3 using the same pins as the internal flash is on, but with CS changed to the pin you set using espefuse.py, and you connect the internal flash CS GPIO to 3.3V, the C3 should use the external flash instead.