BL i.MX8MM (N801x S)

Board Layout and Connectors

BL i.MX8MM Connectors Layout

BL i.MX8MM Connectors Pinout

BL i.MX8MM Connector 2x4 Pin Numbers

IOs

Four digital inputs/outputs (either or) are available.
The table below shows number and function of available DIOs and their associated GPIOs.

The input/output voltage is coupled to the power supply voltage (normally 24 volts).

DIO Name Direction GPIO Name GPIO Device GPIO Offset Connector
DIO1 output GPIO1_IO03 gpiochip0 3 X13 - Pin 1
DIO1 input GPIO1_IO06 gpiochip0 6 X13 - Pin 1
DIO2 output GPIO1_IO07 gpiochip0 7 X13 - Pin 3
DIO2 input GPIO1_IO08 gpiochip0 8 X13 - Pin 3
DIO3 output GPIO1_IO09 gpiochip0 9 X13 - Pin 5
DIO3 input GPIO1_IO10 gpiochip0 10 X13 - Pin 5
DIO4 output GPIO1_IO011 gpiochip0 11 X13 - Pin 7
DIO4 input GPIO5_IO02 gpiochip4 2 X13 - Pin 7

For an example on how to use or work with the DIOs see section "Using the System" for more information.

Serial Devices

Below you will find an overview which serial device has which name in the OS and belongs to which UART device of the iMX8 CPU.

UART Type Accessible via Connector
UART 1 RS232 /dev/ttymxc0 X11
UART 2 RS485 /dev/ttymxc1 X12
UART 3 UART/TTL (Debug UART) /dev/ttymxc2 X3 (USB Mini-B)

For an example on how to use the serial devices see section "Using the System" for more information.

CAN-Bus Interface

The BL i.MX8MM (N801x S) has one CAN-Bus interface. The device is present after boot, but is not enabled by default.

Name Accessible via Connector
CAN can0 X12

For an example on how to use the CAN-Bus see section "Using the System" for more information.