Designing Raspberry CM4 IO Board

mw5603

mw5603

need to design an IO board for the raspberry CM4. The board should support a Poe interface 2 cameras, a single DI interface. The RJ45 needs to be mounter vertical. Needs one PWM fan interface. +3Volts, Gnd, GPIO12 adn GPI13 need to be brougth out to a right angle 4 pi connector . Position TBD.
72 days

flux

0:48

How can I help with your CM4 baseboard project today? Options:
  • Review the CM4 connector pinout and map key nets (USB, PCIe, HDMI, CSI/DSI, GPIO).
  • Plan and add the power subsystem (+5 V input, 3.3 V/1.8 V rails, sequencing).
  • Add connectors (USB-C, Ethernet PHY/MagJack, HDMI, MIPI FFC) and link nets.
  • Check ERC/DRC and fix common issues (grounds, pull-ups, decoupling).
  • Source parts for the DF40 mezzanine, ESD/TVS, regulators, and passives.
Tell me your goal and constraints (interfaces you need, power source, form factor).
Scan schematic power nets
Find suitable 3.3V LDO
Check decoupling guidance
Review USB-C power path
BOM cost/availability
72 days
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nEXTRST
Ethernet_nLED2
Ethernet_Pair1_P
Reserved
nRPIBOOT
Reserved
GPIO13
SD_PWR_ON
GPIO8
DSI1_D3_N
CM4_1.8V (Output)
CAM1_C_P
GND
+5V (Input)
DSI0_D0_P
GND
HDMI1_TX0_N
HDMI0_TX0_P
HDMI1_TX2_P
GPIO26
DSI1_D2_N
GND
GND
PCIe_TX_N
+5V (Input)
GND
GND
GND
GPIO12
SD_DAT2
GPIO_VREF
GND
Ethernet_Pair0_P
GLOBAL_EN
+5V (Input)
DSI0_C_N
GND
DSI1_D1_N
USB_P
GPIO9
HDMI0_TX1_N
PCIe_nRST
GND
Ethernet_Pair1_N
DSI0_D1_N
GND
CAM0_C_N
HDMI0_TX0_N
USB_N
PCIe_CLK_N
CAM0_D0_P
GND
GND
GPIO25
GND
ID_SC
CAM0_D0_N
HDMI1_TX1_P
CM4_3.3V (Output)
GND
HDMI1_TX1_N
Reserved
GND
CAM0_D1_P
PCIe_CLK_nREQ
GPIO23
GND
HDMI1_SCL
Ethernet_SYNC_OUT
GND
Ethernet_nLED1
SD_DAT5
HDMI0_SCL
GND
GND
GND
CAM1_D0_N
GPIO14
CAM1_D2_N
HDMI1_TX2_N
SD_DAT0
DSI1_D1_P
SD_CLK
GPIO10
DSI1_D0_P
HDMI0_CLK_N
+5V (Input)
Ethernet_Pair0_N
GND
GND
DSI1_D2_P
DSI0_D1_P
GND
GPIO5
Ethernet_Pair2_N
SD_DAT2
CAM1_D1_N
CAM1_C_N
GPIO6
CM4_3.3V (Output)
HDMI1_CLK_P
GPIO18
GPIO19
HDMI0_TX2_N
GPIO21
DSI1_C_P
VDAC_COMP
CAM1_D3_P
CAM1_D3_N
GND
GND
GPIO4
CM4_1.8V (Output)
SCL0
+5V (Input)
GND
GND
Ethernet_Pair2_P
GND
PI_LED_nPWR
GND
HDMI0_CLK_P
GND
SD_DAT4
GND
HDMI1_CLK_N
GND
GND
USB_OTG_ID
GPIO16
GPIO17
GPIO27
Camera_GPIO
GND
GPIO11
CAM1_D0_P
GND
GPIO7
EEPROM_nWP
Ethernet_Pair3_N
Ethernet_nLED3
ID_SD
SD_DAT6
HDMI0_HOTPLUG
HDMI0_TX2_P
HDMI0_CEC
PCIe_RX_P
GND
GND
Ethernet_SYNC_IN
GND
GND
GND
GND
SD_CMD
GND
CAM1_D2_P
GND
DSI1_C_N
RUN_PG
SD_VDD_OVERRIDE
HDMI1_HOTPLUG
Ethernet_Pair3_P
CAM1_D1_P
CAM0_D1_N
GND
AnalogIP0
HDMI1_TX2_N
PCIe_CLK_P
CAM0_C_P
GPIO22
GPIO24
WL_nDisable
GND
DSI1_D3_P
AnalogIP1
Pi_nLED_Activity
+5V (Input)
GND
SD_DAT1
GPIO15
DSI0_C_P
HDMI1_SDA
DSI1_D0_N
GND
GPIO3
GPIO20
GND
HDMI0_SDA
PCIe_TX_P
GPIO2
DSI0_D0_N
SD_DAT3
HDMI1_TX0_P
GND
GND
HDMI0_TX1_P
BT_nDisable
PCIe_RX_N
SDA0
J2
J1

Raspberry PI CM4 Module

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