Coldfire Embedded Software Solutions

Green Hills Software provides a comprehensive solution for developing ColdFire®-based applications:Real-time operating systems support µ-velOSity™ royalty-free microkernel
Small, fast, easy-to-learn operating system for the most cost-sensitive and resource-constrained devicesvelOSity™ royalty-free kernel
Small footprint RTOS with full range of middleware and board support packagesINTEGRITY® royalty-free, POSIX® certified RTOS
For totally reliable and absolutely secure applicationsTarget debug devicesGreen Hills Probe
High-performance real-time debuggingSuper Trace Probe
The fastest trace, download, and debugSoftware development toolsMULTI™ development environments
Quickly develop, thoroughly debug, completely test, and fully optimize embedded and real-time applicationsGreen Hills® optimizing compilers
The fastest, smallest code from C, C++, Ada 95, and FORTRANReal-time operating system supportGreen Hills offers three upward-compatible RTOSes that give the developer a scalable solution optimized to the particular ColdFire processor. Features include:
fast and deterministic interrupt response timea common API for portable applicationsfield debuggingintegration with time-saving development tools MULTI and EventAnalyzerbroad range of communication and I/O connectivity including USB, CAN, PCI, TCP/IP, IPSec and more.

The µ-velOSity™ microkernel is the smallest of Green Hills Software’s family of royalty-free operating systems. It is implemented as a C library and so can be easily ported to multiple target architectures. Its simple design as well as integration with the best-in-class MULTI tools make µ-velOSity both easy to learn and simple to use.

The velOSity™ kernel is small, fast and royalty-free— making it perfect for high-volume, cost-sensitive, and deeply-embedded applications. The velOSity kernel is integrated with Green Hills Software’s best-in-class MULTI embedded software tools and provides a rich set of kernel services, device drivers, BSPs and middleware.

The INTEGRITY RTOS is a secure, royalty-free RTOS intended for use in embedded systems that require maximum reliability. Representing the most advanced RTOS technology available, INTEGRITY achieves unprecedented levels of reliability, availability, and serviceability for applications in telecommunications, defense, networking and medical equipment along with many other industries.ColdFire optimizing compilersThe Green Hills Optimizing Compiler for ColdFire uses a common code generator with architecture-specific optimizations. Each supported processor model has its own particular pipeline and instruction set characteristics. These are accommodated in the code generator to produce code best suited for the target processor. The following ColdFire specific features are supported:

Use Built-in fp Functions—Uses built-in floating point instructions rather than calling library functions such as fabs(), sqrt(), and sin().MAC/EMAC Support—Fully supports Multiply and Accumulate and Enhanced Multiply and Accumulate instructions. Built-in functions allow programmers to easily write optimized MAC/EMAC code using C constructs.Position Independent Code (PIC) and Data (PID)—Allows code and data to be created which can be placed anywhere in memory and still run correctly.Small Data Area (SDA)—The Green Hills Compilers can collect frequently accessed variables into a block of up to 64KB of memory. This enables efficient access to data within this block resulting in improved code size.Optimizing Assembler—Assembler will optimize branch and call instructions to use the smallest possible displacement reducing code size.
Run-time libraries
A comprehensive suite of run-time libraries for C, C++, EC++ and Ada 95 are included in the corresponding compiler distributions for each language. Several different versions of the libraries are provided to accommodate different combinations of processor and memory models. The combinations include hardware vs. software floating point, big endian vs. little endian memory models and CPU specific versions. Full featured start-up code and libraries include automatic copy of data from ROM to RAM and system call emulation.The MULTI integrated development environment

MULTI provides a host-based (Windows, Solaris, or Linux) graphical environment for ColdFire target development. Host-target connectivity is provided through a variety of means, depending on the target environment. MULTI supports many ColdFire targets, including evaluation boards from Freescale Semiconductor. These boards can be accessed with a variety of interfaces: Bare Board Access (No RTOS or ROM Monitor)—Combined with the Green Hills Probe MULTI provides a complete software package that enables programmers to debug code without need for operating systems, kernels, or even ROM monitors.Commercial RTOS Support—MULTI supports ColdFire boards running INTEGRITY, velOSity or µ-velOSity from Green Hills Software. MULTI provides multitask-aware debugging. Special commands allow tasks to be stopped upon system events such as task creation.Custom RTOS Support—MULTI can be interfaced with a custom RTOS through integration of the Green Hills INDRT API. INDRT provides all the debug information needed by MULTI, and is easily integrated into user code.Instruction Set Simulator—The MULTI instruction set simulator interpretively executes ColdFire programs on the host PC or workstation without the need for target hardware by simulating the execution of the target processor at the instruction level. The simulator provides full debug features, including host I/O, command window, extended profiling and hardware breakpoints.