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

Inactive Publication Date: 2010-05-19
SHENZHEN HUAYU SOFTWARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The current design of radio paper books adopts the hardware architecture of application processor (AP) + communication processor (CP) two CPUs, which makes the utilization rate of CPU very low and increases the cost.

Method used

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  • Single-CPU wireless electronic book and operation method thereof
  • Single-CPU wireless electronic book and operation method thereof
  • Single-CPU wireless electronic book and operation method thereof

Examples

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Embodiment Construction

[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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Abstract

The invention discloses a single-CPU wireless electronic book and an operation method thereof. The hardware of the invention comprises an antenna switch, a power management unit, a keyboard, an electronic ink display screen, a synchronous dynamic memory, a flash memory and a communication processor, wherein the communication processor is respectively connected with the antenna switch, the power management unit, the keyboard, the electronic ink display screen, the synchronous dynamic memory and the flash memory. The operation method of the operating systems in the invention is realized in a way that: the current in the hardware firstly leads the micro-kernel operating system, and the micro-kernel operating system respectively leads RTOS and RichOS according to the preset script; and both the RTOS and the RichOS are positioned in the micro-kernel operating system and correspond to two tasks in the operating system, and thus, the communication between the two operating systems can be simplified into simple communication between two tasks. The invention increases the utilization ratio of the CPU, reduces the hardware cost and enhances the openness of the systems.

Description

technical field [0001] The invention relates to a single-CPU wireless paper book and its operating method. Background technique [0002] At present, the design methods of radio paper books all adopt the hardware architecture of application processor (AP)+communication processor (CP) two CPUs (see figure 1 ), the 3G communication is completed by a communication processor (CP), and the application software is completed by an application processor (AP). The current design of radio paper books all adopts the hardware architecture of application processor (AP) + communication processor (CP) two CPUs, which makes the utilization rate of CPU very low and increases the cost. The present invention avoids this framework and runs the function of the application processor (AP) on the function of the communication processor (CP), that is, a single-CPU electronic paper book, which effectively overcomes the disadvantages of the traditional method. Contents of the invention [0003] The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B5/02
Inventor 李均强
Owner SHENZHEN HUAYU SOFTWARE
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