Embedded 101: IOVDD, DVDD, AVDD — Why MCUs Require Multiple Power Rails
This article introduces RP2040's multi-rail power supply system and several practical power supply wiring schemes.
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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. Power Supply System The power supply system serves as the "energy source" of the RP2040. For the chip to function, power must be supplied to different…
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