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.

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

OVER_CURRENT

GPIO Power Supply Interrupt

DAC1

GPIO Power Supply Analog Output to Comparator

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

PS_J1850_9141

Bring LOW for LOW power

P2_19

J1850

Mapped Pin Name

Notes

PocketBeagle Pin Name

J1850_PWM_VPW

J1850_PWM_RX

J1850_VPW_RX

J1850P_TX

J1850N_TX

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

SWC_M0

SWC M0

SWC_SOF

SWC SOF

SWC_CLK

SWC CLK

SPI0_CS3

SPI0_nCS3

SWC_INT

SWC nINT

SWC_RX0

SWC nRX0BF

SWC_RX1

SWC nRX1BF