High-Level Block Diagram Creation


Create a high level mermaid block diagram of this project. Include key component's manufacturer part number in each block whenever possible.
I’ll inspect the project structure and BOM, then create a concise high-level Mermaid block diagram document with MPNs where available.
I found the major blocks: RP2350 MCU, power tree, M40 interface, XY2/encoder DB25, laser safety, I2C expanders, isolated digital I/O, and analog ADS8688-LZM8688 interface. I’m saving the diagram as a project document now.
Created the high-level Mermaid block diagram and saved it in High Level Block Diagram. It includes the main functional blocks and key MPNs from the schematic/BOM, with caveats for connector-only or ambiguous regulator entries.
Review diagram and ERC
Run schematic ERC
Fix ambiguous MPNs
Create power tree
Check BOM risk
Explain block diagram

ERC报告 — 补Sheet 5/6/7/9后
本轮完成
  • Sheet 6:U3/U5 I2C、地址、复位、U3 GPB2/3到J_IO IO0/IO1、U3 GPB47到U19U22、U5 GPB2/3/4到Laser Enable/Ready/Fault。
  • Sheet 7:J_IO Pin912到U19U22输入侧,Pin15为DI_COM,Pin13为PWR_3V3,Pin14/16为GND,Pin3~8标No-Connect。
  • Sheet 5:U18与门输入/输出、Interlock上拉与去抖、26Pin Laser Gate/Interlock/GND/PWR_3V3与17~26 NC处理。
  • Sheet 9:LZM8688 AIN0AIN7按规格书顺序连接至U_A17U_A24运放输出,运放配置为电压跟随器,输入侧生成ADC_SENSOR_CH0~7。
ERC抽查结果
当前ERC仍主要为Floating Pin,属于以下类别:
预期/可接受(附录B或当前阶段)
  • MB_INTERLOCK_IN / MB_INTERLOCK_OUT:外部客户现场串联安全链,按附录B应标注No-ERC/External wired by customer。
  • J_LZM_SPI Pin4 RST、Pin5 DAISY:模块复位与菊花链输入尚未分配,需后续确认是否接GPIO或No-Connect。
  • J_M40_A/B未列针脚:M40 50Pin接口尚未完整补全,待按M40手册逐针连接或No-Connect。
  • U3未用GPA/GPB、U1未用GPIO:需按附录A.7加10k上下拉或No-Connect/软件配置说明。
需要后续补齐
  • U_ENC、U_DCDC_3V3、U_DCDC_5V反馈/BOOT/SW/EN/电感网络仍未完整;需按DCDC数据手册补外围。
  • RP2350B电源、QSPI Flash、晶振、USB/SWD、M40 GPIO仍未完整连接。
  • Q1/LM74700防反接详细连接仍未补完。
结论
本轮Sheet 5/6/7/9关键接口网络已补齐,但整机ERC尚未清零;剩余问题主要来自电源转换器外围、MCU基础支持电路、M40接口和未用引脚处理。
  • 本轮完成

  • ERC抽查结果

  • 预期/可接受(附录B或当前阶段)

  • 需要后续补齐

  • 结论