- ARM develops, manufactures, and distributes embedded software development tools for the 8051, 251, ARM and XC16x/C16x/ST10 microcontroller families. Since its beginning, ARM has driven the industry to new heights with advanced software technology. Its constant, hard-driving research has paid off time and again as it continues to develop innovative products that make product development easier. Today, ARM provides a broad range of development tools for the embedded systems marketplace. Products include ANSI 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.