tinic/led_pendant

led_pendant

This project is designed to compile on Debian or derivatives (Ubuntu, Linux Mint). Linux in a virtual machine will work fine (tested with VirtualBox). To compile and upload the firmware a few one time steps are required:

One time setup

• Add your user ID to the dialout group as such (replace $USER with your username):

> sudo usermod -a -G dialout $USER

• Add a rule to set correct permissions on /dev/ttyUSB? devices and reboot:

> sudo echo > /etc/udev/rules.d/50-ttyusb.rules KERNEL==\"ttyUSB[0-9]*\",NAME=\"tts/USB%n\",SYMLINK+=\"%k\",GROUP=\"dialout\",MODE=\"0666\"
> reboot

• Bootstrap the compiler enviroment:

> cd led_pendant
> ./bootstrap.sh

Compiling and debugging

• Plug the USB2serial converter attached to the LED pendant into your PC. Make sure you take over the USB device if you run Linux in a virtual machine. It should show up as a FTDI device.
• Finally build the project. The Makefile will automatically try to upload the firmware to the first /deb/ttyUSB? device it finds:

> make

• To get UART output from the LED pendant compile and run the leddebug tool. Note that for technical reasons running leddebug will always reset the device:

> make leddebug
> ./leddebug