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metronome/hardware/kicad/mcu_core.log
Me Here edb736c1d3 PM_K-1 hardware: RP2350 core (MCU + flash + crystal + USB + boot/reset + SWD) 
circuits/mcu_core.py using the authoritative KiCad MCU_RaspberryPi:RP2350A symbol.
Minimal design per RP "Hardware design with RP2350" (RP-008280):
- Core SMPS: VREG_VIN<-3V3, VREG_LX->3.3uH->DVDD, VREG_FB senses DVDD; VREG_AVDD via
  33ohm+4.7uF RC filter; ADC_AVDD filtered; 100nF per power pin.
- 12MHz crystal, MCLK-LESS (RP2350 makes I2S BCK/LRCK/DIN; PCM5102A uses its internal
  PLL) -- no audio oscillator, no MCLK net. Cheaper/simpler/robust; inaudible difference
  for a metronome (decided with the user).
- W25Q128JVS QSPI flash (Fig-8 pinout); BOOTSEL = QSPI_SS via 1k + button; RUN 10k
  pull-up + reset button; SWD header; USB D+/D- via 27ohm series.
- Full GPIO map assigned (DESIGN.md s7.1 + audio control: SPI/I2C/ADC/buttons/LED +
  I2S + relay-enable/mute/gnd-lift + DAC_XSMT).
ERC 0 errors; netlist 0 errors. CONFIRM at layout: crystal load caps, QFN-60 footprint,
and the USB-C connector + USBLC6-2 ESD + CC resistors (USB sub-block; D+/D- exit on 27R).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-05-30 21:56:12 -05:00

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WARNING: fp-lib-table file was not found. Component footprints are not available.
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INFO: 63 warnings found while generating netlist.
INFO: 0 errors found while generating netlist.
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