Pin Mapping
This page will describe how the names of the pins on the PocketBeagle/OSD3358 coorespond to signals on the rest of P1.
P1 consists of 3 PCBs all stacked together through headers. Each board has its own schematic and each header and signal may have different names on each board.
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UTH and UTD versions of P1
Caution: Neither PocketBeagle nor Interface board is keyed, so it is possible to plug together incorrectly. Use the above diagram to ensure you are plugging together correctly.
Caution: In the case of UTH version - with enough force, it is possible to plug a 24 pin connector into the 26 pin connector socket. Please don't do that.

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P1 boards:
PocketBeagle (schematic here). This is the brains of the operation.
Adapter board (schematic here). This board acts connects PocketBeagle to the M2 interface board, adds a battery connector and full-sized USB A connector.
Interface board (schematic here). This is the same interface board used with M2. This board has all of the automotive interfaces and power supply.

P1 headers:

Headers connect throughout P1 as follows:
PocketBeagle Headers
Adapter board headers
Interface board headers
P1 connects to:
J5
-
P2 connects to:
J6
-
-
J2 connects to:
J3
-
J3 connects to:
J4
-
-
J5 (26 pin connector)
-
-
J1 (UTD) or J2 (UTH)

Mappings:

12-volt Outputs

Mapped Pin Name
Function
Notes
PocketBeagle Pin Name
OUT 1
SRC
J5 Pin 2 (26 pin connector)
P1_36
OUT 2
SRC
J5 Pin 6 (26 pin connector)
P2_3
OUT 3
SRC
J5 Pin 10 (26 pin connector)
P2_2
OUT 4
SINK
J5 Pin 14 (26 pin connector)
P2_4
OUT 5
SINK
J5 Pin 18 (26 pin connector)
P1_33
OUT 6
SINK
J5 Pin 22 (26 pin connector)
P2_10

Analog Inputs (0-12V analog input)

Mapped Pin Name
Notes
PocketBeagle Pin Name
IN 1
J5 Pin 1 (26 pin connector)
P1_19
IN 2
J5 Pin 5 (26 pin connector)
P1_21
IN 3
J5 Pin 9 (26 pin connector)
P1_23
IN 4
J5 Pin 13 (26 pin connector)
P1_25
IN 5
J5 Pin 17 (26 pin connector)
P1_27
IN 6
J5 Pin 21 (26 pin connector)
P2_36

GPIO Power Supply Current Sense

Mapped Pin Name
Notes
PocketBeagle Pin Name
12Vio_EN
GPIO Power Supply Enable
P1_31
SENSE 12V
GPIO Power Supply Analog Current Sense
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OVER_CURRENT
GPIO Power Supply Interrupt
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DAC1
GPIO Power Supply Analog Output to Comparator
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CAN

Mapped Pin Name
Notes
PocketBeagle Pin Name
CANRX0
CANRX0
1_28
CANTX0
CANTX0
1_26
CAN0_CS or HS_CS
HSC_S
1_20
CANRX1
CANRX1
2_09
CANTX1
CANTX1
2_11
CAN1_CS or MS_CS
MSC_S
2_30

Power Supplies

Mapped Pin Name
Notes
PocketBeagle Pin Name
PS_BUCK or BUCK_DIS
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PS_J1850_9141
Bring LOW for LOW power
P2_19

J1850

Mapped Pin Name
Notes
PocketBeagle Pin Name
J1850_PWM_VPW
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J1850_PWM_RX
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J1850_VPW_RX
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J1850P_TX
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J1850N_TX
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9141/LIN

Mapped Pin Name
Pin name
Notes
PocketBeagle Pin Name
LIN_KTX
9141 K TX
LIN1 TX
P2_7
LIN_KRX
9141 K RX
LIN1 RX
P2_5
LIN_KSLP
9141 K SLP
LIN1 Sleep
P2_22
LIN_LTX
9141 L TX
LIN2 TX
P1_30
LIN_LRX
9141 L RX
LIN2 RX
P1_32
LIN_LSLP
9141 L SLP
LIN2 Sleep
P2_28

Single-wire CAN

Mapped Pin Name
Pin Name
Notes
PocketBeagle Pin Name
SWC_M1
SWC M1
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SWC_M0
SWC M0
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SWC_SOF
SWC SOF
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SWC_CLK
SWC CLK
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SPI0_CS3
SPI0_nCS3
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SWC_INT
SWC nINT
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SWC_RX0
SWC nRX0BF
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SWC_RX1
SWC nRX1BF
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Last modified 3mo ago