ARM Inc. was founded in 1986 to market add-on products for the development tools provided by many of the silicon vendors. It soon became evident that there was a void in the marketplace that must be filled by quality software development tools. It was then that ARM implemented the first C compiler designed from the ground-up specifically for the 8051 microcontroller.

Today, ARM Inc. provides a broad range of development tools for the embedded systems marketplace. Their products include ANSI C and C++ compilers, macro assemblers, debuggers, linkers, library managers, and real-time operating systems. Products such as these have helped ARM become the world's leading developer of Embedded Systems Software.

Since its beginning, ARM has driven the industry to new heights with advanced software technology. Their constant, hard-driving research has paid off time and again as they continue to develop innovative products that make product development easier.

The Keil Development Tools are designed to solve the complex problems facing embedded software developers.

• When starting a new project, simply select the microcontroller you use from the Device Database and the µVision IDE sets all compiler, assembler, linker, and memory options for you.
• Numerous example programs are included.
• The Keil µVision Debugger accurately simulates on-chip peripherals (I²C, CAN, UART, SPI, Interrupts, I/O Ports, A/D Converter, D/A Converter, and PWM Modules) of your device. Simulation helps you understand hardware configurations and avoids time wasted on setup problems.
• When you are ready to begin testing your software application with target hardware, use the MON51, MON390, MONADI, or FlashMON51 Target Monitors, the ISD51 In-System Debugger, or the ULINK USB-JTAG Adapter to download and test program code on your target system.