Pin Function Inquiry

flux

I couldn’t find any Flux documentation on explicitly assigning a net to individual schematic pins. It appears that connecting a pin to GND is done by wiring the pin to a GND symbol on the schematic.
You can explore more in the Flux Documentation or ask in the Flux Community for details:
agcab

agcab

@schematic Can you tell me the functionality of U1 pin 24?

flux

U1 pin 24 (SWCLK) is the Serial Wire Debug clock input for the RP2040. According to the RP2040 datasheet:

Table

PropertyDetail
NameSWCLK
Pin Number24
TypeDigital In (FT)
Power DomainIOVDD
Reset StatePull-Up
FunctionalityProvides the debug clock for the Serial Wire Debug (SWD) interface, giving external debuggers clock timing to communicate with both cores.
Source: RP2040 Datasheet, Section 5.5 “Pinout.”
SWD header search
Label SWD nets
Routing advice
External pull-up question
Decoupling capacitor
U1
C1
Capacitance
100nF
U5
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Raspberry Pi Pico | End-to-end AI Design Tutorial [Example]

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