Dependencies¶
The easiest way to install these dependencies is to use the script/bootstrap.sh script
in the vi-firmware
repository. Run the script in Linux, 32-bit Cygwin in
Windows or OS X and if there are no errors you should be ready to go:
$ script/bootstrap.sh
If there are errors, continue reading in this section to install whatever piece failed manually.
To compile the VI firmware, you need:
- Git
vi-firmware
source code cloned with Git - not from a .zip file- OpenXC Python library
- MPIDE
- Digilent’s USB and CAN libraries for the chipKIT
- FTDI driver
- Mini-USB cable
If instead of the chipKIT, you are compiling for the Blueboard (based on the NXP LPC1768/69), instead of MPIDE you will need:
- GCC for ARM toolchain
- OpenOCD
- JTAG programmer compatible with
openocd
- we’ve tested the Olimex ARM-OCD-USB programmer.
Source Code¶
Clone the repository from GitHub:
$ git clone https://github.com/openxc/vi-firmware
Some of the library dependencies are included in this repository as git submodules, so before you go further run:
$ git submodule update --init
If this doesn’t print out anything or gives you an error, make sure you cloned this repository from GitHub with git and that you didn’t download a zip file. The zip file is missing all of the git metadata, so submodules will not work.
PIC32 Dependencies¶
If you are planning to build for the PIC32 platforms (e.g. the chipKIT Max32 or C5), you need these dependencies.
MPIDE¶
Building the source for the VI for the chipKIT microcontroller requires MPIDE (the development environment and compiler toolchain for chipKIT provided by Digilent). Installing MPIDE can be a bit quirky on some platforms, so if you’re having trouble take a look at the installation guide for MPIDE.
Although we just installed MPIDE, building via the GUI is not supported. We use GNU Make to compile and upload code to the device. You still need to download and install MPIDE, as it contains the PIC32 compiler.
You need to set an environment variable (e.g. in $HOME/.bashrc
) to
let the project know where you installed MPIDE (make sure to change
these defaults if your system is different!):
# Path to the extracted MPIDE folder (this is correct for OS X)
export MPIDE_DIR=/Applications/Mpide.app/Contents/Resources/Java
Remember that if you use export
, the environment variables are only
set in the terminal that you run the commands. If you want them active
in all terminals (and you probably do), you need to add these
export ...
lines to the file ~/.bashrc
(in Linux) or
~/.bash_profile
(in OS X) and start a new terminal.
Digilent / Microchip Libraries¶
It also requires some libraries from Microchip that we are unfortunately unable to include or link to as a submodule from the source because of licensing issues:
- Microchip USB device library (download DSD-0000318 from the bottom of the Network Shield page)
- Microchip CAN library (included in the same DSD-0000318 package as the USB device library)
You can read and accept Microchip’s license and download both libraries on the Digilent download page.
Once you’ve downloaded the .zip file, extract it into the libs
directory in this project. It should look like this:
- /Users/me/projects/vi-firmware/
---- libs/
-------- chipKITUSBDevice/
chipKitCAN/
... other libraries
FTDI Driver¶
If you’re using Mac OS X or Windows, make sure to install the FTDI driver that comes with the MPIDE download. The chipKIT uses a different FTDI chip than the Arduino, so even if you’ve used the Arduino before, you still need to install this driver.
LPC176x Dependencies¶
If you are planning to build for the LPC176x platforms (e.g. the Ford Reference VI), you need these dependencies.
GCC for ARM Toolchain¶
Download the binary version of the toolchain for your platform (Linux, OS X or Windows) from this Launchpad site.
Arch Linux¶
In Arch Linux you can install arm-none-eabi-gcc
, arm-none-eabi-binutils
and arm-none-eabi-gdb
from the [community]
repository.
OpenOCD¶
If you plan to flash an LPC17xx based board with JTAG and not use the USB bootloader included with the Ford Reference VI, you need OpenOCD.
Arch Linux¶
$ pacman -S openocd
OS X¶
Install Homebrew. Then:
$ brew install libftdi libusb
$ brew install --enable-ft2232_libftdi openocd
Remove the Olimex sections from the FTDI kernel module, and then reload it:
$ sudo sed -i "" -e "/Olimex OpenOCD JTAG A/{N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;d;}" /System/Library/Extensions/FTDIUSBSerialDriver.kext/Contents/Info.plist
$ sudo kextunload /System/Library/Extensions/FTDIUSBSerialDriver.kext/
$ sudo kextload /System/Library/Extensions/FTDIUSBSerialDriver.kext/