Embedded 101: MCUs Don’t Run main() Immediately After Power-Up
This article introduces RP2040’s power-on boot sequence, covering hardware initialization and BootROM-driven Flash/USB boot modes.
0
Project description
【Preliminary Note】The original hardware example in this article was written based on the RP2040. The actual hardware used in this hands-on demonstration features the W55RP20 as the main controller chip. The circuit logic and UF2 flashing operation principles are universally applicable, with only the main controller model differing. The original chip model mentioned in the circuit descriptions below is provided for reference purposes only. BOOT Boot Sequence The "boot sequence" of a chip is just like the entire process that takes place after we power on a computer, from the "black screen…
Keep reading with a free account
Guests can read 15 projects per visit. Log in or create a free account to read the full description, open the documents and join the comments.
