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Real-time Linux is used in embedded systems because the source of Linux is openly and freely available. But current real-time Linux is often an integrated software platform, including all functions together. They store in flash or hard disks, loaded into RAM on board when the system starts. But it has some disadvantages when it is used for embedded systems. In this paper, we present the embedded real-time Linux on chip, which contraposes these disadvantages to make optimization. Embedded real-time Linux on chip proposes a new architecture for embedded system with SOC based on Linux. The fundamental principles for embedded real-time Linux on chip, which is a module-based architecture, are: the kernel runs in SRAM minimum and the scheduler of modules is optimal. Embedded real-time Linux on chip architecture consists of two main parts: Microkernel on chip and Module Management on flash. Microkernel and all the modules are stored in flash on chip. Microkernel will be loaded into SRAM on chip when the system starts. When a module is needed, the management module is called by module scheduler in microkernel and this module will be loaded into SRAM. Our experimental results show that it makes Linux more efficient for embedded systems and potential for good real-time responses.