mavamo135 / bbdl

Beaglebone Black Driver Library

BeagleBone Black Driver Library (BBDL)

Syslog messages of BBDL

    tail -f /var/log/syslog | grep "BBDL"

Configuration

Method 1

Create configure-pins.sh file in autorun folder if using cloud9:

#!/bin/bash

config-pin p9.26 uart
config-pin p9.24 uart

Method 2

Debian image ~16.04 switched from capemgr to u-boot overlays. To enable Uart 1, in /boot/uEnv.txt set:

uboot_overlay_addr0=/lib/firmware/BB-UART1-00A0.dtbo 

And then reboot. This method is explained here.

Method 3

Create file /usr/bin/configure-pins.sh

This method is explained here.

• sudo nano /usr/bin/configure-pins.sh

#!/bin/bash

config-pin p9.24 uart
config-pin p9.26 uart

• sudo chmod 755 /usr/bin/configure-pins.sh

Create file /lib/systemd/system/configure-pins.service

• sudo nano /lib/systemd/system/configure-pins.service

[Unit]
Description=Enable BBDL pins
After=generic-board-startup.service

[Service]
Type=simple
ExecStart=/usr/bin/configure-pins.sh

[Install]
WantedBy=multi-user.target

Enable the new systemd service

• sudo systemctl daemon-reload
• sudo systemctl enable configure-pins.service

Created symlink /etc/systemd/system/multi-user.target.wants/configure-pins.service → /lib/systemd/system/configure-pins.service.

Reboot and test

• sudo systemctl status configure-pins.service

debian@beaglebone:~$ sudo systemctl status configure-pins.service
● configure-pins.service - Enable BBDL pins
   Loaded: loaded (/lib/systemd/system/configure-pins.service; enabled)
   Active: inactive (dead) since Wed 2017-04-19 06:35:06 UTC; 48s ago
  Process: 649 ExecStart=/usr/bin/configure-pins.sh (code=exited, status=0/SUCCESS)
 Main PID: 649 (code=exited, status=0/SUCCESS)

• config-pin -q p9.24 && config-pin -q p9.26

debian@beaglebone:~$ config-pin -q p9.24 && config-pin -q p9.26
P9_24 Mode: uart
P9_26 Mode: uart

TODO

• Automatic dependency tracking in Makefile

License

This project is licensed under the MIT License - see the LICENSE.md file for details

Acknowledgments

• sijpesteijn/BBCLib