Smartwatch PCB Design Discussion


Proceed to PCB routing phase.
Priority order:
  1. RF routing (nRF → matching → antenna)
  2. QSPI display routing (short + controlled impedance)
  3. Power distribution routing (nPM1300 → rails)
  4. Sensor routing (I2C/SPI)
  5. Final DRC cleanup
我会进入 PCB routing 阶段,并严格按你给的优先级:RF → QSPI display → power → sensors → DRC cleanup。先读取 routing 规则/布局状态,然后执行布线并复核 airwires/DRC。
已进入并执行 PCB routing 阶段:完成 routing precheck 修复,包括手动放置 J2、移动 J3/C30/C33、清理 J2 pin11/pin14 的重复网污染,并为 VBAT 设置窄线宽规则以允许进入 PMIC/FPC 小焊盘。随后自动布线已成功完成,项目中已应用 696 个 routing nodes;未能继续做最终 DRC/airwire 复核,因为当前账户没有可用 ACUs。
Estimated time saved vs. manual EDA workflow: ~4–8 hours.
Open items:
  • 需要在 ACUs 可用后运行最终 DRC/airwire 检查。
  • 需要重点复核 RF_FEED_MCU / RF_FEED_50R 是否保持短、少过孔、50Ω 意图。
  • 需要复核 QSPI display 线长/走向、USB 差分、PMIC 电源环路。
  • VBAT 曾为通过自动布线被设为 0.05–0.08 mm 窄线宽规则,必须人工加宽或用铜皮/多过孔补强。
  • J2 仍是 0.5 mm FPC mechanical placeholder,不是最终 0.4 mm footprint。
Suggested next steps:
  1. 补充 ACUs 后让我运行 DRC/airwire 和 routing quality review。
  2. 让我专门审查 RF/QSPI/USB/power routing 并生成修复清单。
  3. 替换最终 J2 24-pin 0.4 mm footprint 后重新局部布线显示连接区。
Run checks later
Review critical routes
Replace J2 footprint
Check VBAT path
Export routing report

U3
AE1
J1
D1
RT1
Resistance
10kΩ
C17
Capacitance
0.1uF
C31
Capacitance
10uF
C1
Capacitance
0.1uF
C18
Capacitance
0.1uF
C32
Capacitance
10uF
C28
Capacitance
10uF
C21
Capacitance
0.1uF
C5
Capacitance
0.1uF
C8
Capacitance
0.1uF
C2
Capacitance
0.1uF
C30
Capacitance
10uF
C24
Capacitance
0.1uF
C22
Capacitance
0.1uF
C35
Capacitance
1.0pF
C27
Capacitance
10uF
C10
Capacitance
0.1uF
C6
Capacitance
0.1uF
C9
Capacitance
0.1uF
C3
Capacitance
0.1uF
C29
Capacitance
10uF
C33
Capacitance
10uF
C13
Capacitance
0.1uF
C12
Capacitance
0.1uF
C34
Capacitance
10uF
C26
Capacitance
10uF
C4
Capacitance
0.1uF
C15
Capacitance
0.1uF
C25
Capacitance
10uF
C23
Capacitance
0.1uF
C16
Capacitance
0.1uF
L1
Inductance
2.2uH
C11
Capacitance
0.1uF
C20
Capacitance
0.1uF
C7
Capacitance
0.1uF
L3
Inductance
2.2uH
L2
Inductance
2.2uH
C36
Capacitance
1.0pF
C14
Capacitance
0.1uF
C19
Capacitance
0.1uF
R14
Resistance
22Ω
R15
Resistance
22Ω
R17
Resistance
22Ω
R7
Resistance
10kΩ
R2
Resistance
10kΩ
R20
Resistance
22Ω
R11
Resistance
22Ω
R18
Resistance
22Ω
R8
Resistance
10kΩ
R12
Resistance
22Ω
R6
Resistance
10kΩ
R3
Resistance
10kΩ
R16
Resistance
22Ω
R10
Resistance
10kΩ
R9
Resistance
10kΩ
R13
Resistance
22Ω
R19
Resistance
22Ω
R5
Resistance
10kΩ
U4
R1
Resistance
10kΩ
R4
Resistance
10kΩ
U2
U6
U7
J2
J3
U5
U1
52mm Biomedical BLE Smartwatch thumbnail