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.
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.
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 |
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