Single-CPU wireless electronic book and operation method thereof
A radio and antenna switch technology, applied in the field of single-CPU radio paper books and its operation, can solve the problems of low CPU utilization and increased costs, and achieve the effects of reducing hardware costs, increasing openness, and improving utilization
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[0024] The system framework of this embodiment is composed of ARM processor, microkernel operating system (VM OS), RTOS, RichOS, communication protocol and application program. The memory in the ARM processor is divided into different partitions. The microkernel operating system (VM OS), RTOS and RichOS occupy different partitions and use their own storage management mechanisms and methods without affecting other operating systems. RTOS and RichOS are located on the microkernel operating system (VM OS), which is equivalent to two tasks in the operating system. The microkernel operating system (VM OS) provides task scheduling between the two operating systems. The application program runs on the RichOS, and the communication protocol runs on the RTOS. Using the named pipe (IPC) communication mechanism provided by the operating system, the RichOS sends AT commands to the RTOS, and the RTOS uses the communication protocol to analyze the message after receiving the message, realizi...
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