Disassembly of the RP2040 Clock Tree: Clock Sources, Generators and Peripheral Clocks
This article explains RP2040’s clock tree system, covering multiple clock sources, frequency configuration, independent gating and power-saving principles.
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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. The clock system can introduce clocks from different clock sources (PLL, internal ring oscillator, USB clock, etc.) and use multiple clock generators to…
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