Raspberry Pi

Raspberry Pi and BaseJumper baseboards go together like hot pie and whipped cream. The Pi packs a lot of grunt in terms of computing power, it runs linux and provides networking interfaces. Perfect for running high-level applications requiring internet or network connectivity! BaseJumper baseboards bolster the Pi’s capabilities by adding real-time processing capability and rugged interfaces for connecting to real-world sensor and actuators.

Supported Boards

• RPi 4B

Getting Started

Library Installation

Start by installing the BaseJumper library on your Raspberry pi. The library is available on github. Follow the steps from the README to compile and install the library. A shared library, static library and header files will be installed on the system.

Pi Configuration

• Linux serial console on /dev/serial0 is disabled.
• Additional UART /dev/serial2 is enabled.
• I2C for reading HAT ID /dev/i2c-0 is enabled.
• SPI /dev/spidev0.x is enabled.

Template Project

If you’re starting a new project, you might like to start with the BaseJumper application template for linux. It is available on github. It includes source for a sample application, a simple makefile for building the project, and some configuration files for Visual Studio Code. See the README for further details on how to use it.

If you prefer to configure your own project and build system, continue reading the Code and Build sections below for tips. If you are using the template you can skip over these as it’s already taken care of.

Code

To bring the library into scope in your C++ source file add #include <BaseJumper.h> to the top of the file. All BaseJumper code is inside the namespace BaseJumper. You might wish to bring this namespace into scope with a using directive: using namespace BaseJumper;. Be sure to call basejumper_init() before using any circuits.

#include <BaseJumper.h>

using namespace BaseJumper;

int main() 
{  
  basejumper_init();
  // etc  
}

Build

You will need to instruct the compiler/linker to use the BaseJumper library by adding some flags. -lbasejumper tells the linker to use the .so shared library. -I/usr/local/include/basejumper points the compiler to the headers.

Example

$ g++ ./src/App.cpp -lbasejumper -I/usr/local/include/basejumper -o build/App

Pin Mappings

*There may be additional connections made for powering & resetting the platform that are not included in this table.