Ultibo core

This is the source for the Ultibo core project, a full featured embedded (no OS) development environment for Raspberry Pi.

Ultibo core is much more than just another OS example it is a complete platform for creating modern full featured embedded applications in C, C++ or FreePascal which run without any operating system and provides a large number of stable, ready to use features including:

• Support for most models of Raspberry Pi (A/B/A+/B+/2B/3B/3B+/4B/400/Zero/ZeroW/Zero2W) plus QEMU ARM emulation

• Pre-emptive threading

• Full range of locking and synchronization primitives

• Multicore support on Raspberry Pi 2, 3 and 4 with all cores sharing workload

• Thread priority, affinity and migration

• Complete IPv4 stack including TCP, UDP, ICMP and raw sockets as well as DNS and DHCP protocols

• USB support with drivers for Hub, Keyboard, Mouse, Storage, Network, HID, Touch, Gamepad and Joystick

• MMC/SD/SDIO device support including eMMC devices on Raspberry Pi Compute Modules

• Support for GPIO, I2C, SPI, PWM, UART and DMA devices

• Full support for FAT12/16/32, NTFS and CDFS filesystems

• Interrupt and fast interrupt handling

• Hardware exception handling

• Complete RTL with strings, code pages, Unicode, classes, objects and exceptions

• Full Winsock 1.1 and Winsock 2 implementation

• Standard C library support including BSD sockets and POSIX threads

• Standard C++ library included

• Prebuilt libraries for Freetype2, SQLite, Zlib, Libpng, LVGL, Libmad and more included

• Support for many common FPC packages

• Hardware accelerated OpenGL ES and OpenVG graphics and support for the official Pi camera

• Many included extras like HTTP, SMTP, NTP, SysLog, Telnet and Shell

Note that the Raspberry Pi Pico is not supported by Ultibo core as it is based on a microcontroller instead of a microprocessor and is not able to support the features required by Ultibo core.

More information:

For all information on developing with Ultibo, building the source and getting started please see the Ultibo.org website

An installer download for Windows and a Linux installer script are available from the downloads page, installation on MacOS is supported using fpcupdeluxe

The installer includes the Ultibo core source, examples and runtime and a full featured FreePascal development environment, for C/C++ development the Ultibo API provides the necessary headers plus examples for getting started.

Detailed documentation can be found in the Ultibo wiki

Questions and other discussion should be posted in the Ultibo forum