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Method and apparatus for implementing serial communication protocol by using microprocessor

A serial communication protocol, microprocessor technology, applied in the direction of electrical digital data processing, instruments, etc., can solve the problems of increasing development time, increasing design cost, etc., to speed up, fast, reduce hardware development and verification time Effect

Inactive Publication Date: 2015-11-11
天津国芯科技有限公司
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

In previous designs, the hardware often needs to be redesigned for these different peripheral interfaces, which means re-verification is required, which greatly increases the development time and design cost

Method used

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  • Method and apparatus for implementing serial communication protocol by using microprocessor
  • Method and apparatus for implementing serial communication protocol by using microprocessor

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Embodiment Construction

[0025] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0026] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0027] Such as figure 1 As shown, the present invention adopts the following technical solutions: use a group of small general-purpose processors, programmable external storage devices, and PAD pins that interact with the outside to realize low-speed serial communication protocols such as IIC, UART, and SPI, It specifically includes:

[0028] A group of small general-purpose processors, which can be programmed to achieve different hardware functions. Its characteristics are: small size and fast speed. For example, the C0 chip of Tianjin Guoxin Technology Co., Ltd., its most basic architecture only needs about 1K gates , its basic frequency can reach above 50M;

[0029] A set of codes ...

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Abstract

The present invention provides a method for implementing a serial communication protocol by using a microprocessor and belongs to the fields of computer technologies and serial communication. Low-speed serial communication protocols such as IIC, UART, SPI and the like are implemented by using a set of general microprocessors, a programmable external storage device and an externally interactive PAD pin. The method is implemented by the specific steps of: implementing time sequences of the protocols such as IIC, UART, SPI and the like by means of software programming; downloading a program into a flash; reading data in the flash by using the microprocessor; and implementing a function of communicating with serial devices such as an IIC device, a UART device, an SPI device and the like by means of cooperation with the external PAD pin. By using the method for implementing the serial communication protocol by using the microprocessor, original hardware design can be applied to different application scenarios, hardware development and verification time can be greatly shortened by hardware development personnel, only maintenance of software design is needed, and the speed of development and design is greatly increased.

Description

technical field [0001] The invention relates to the field of computer architecture and serial communication, in particular to a method and device for realizing serial communication protocol with a microprocessor. Background technique [0002] Serial communication is an important way for data communication between the master device and external devices. Compared with parallel communication, serial communication can use fewer data lines and control lines to realize data communication. With the continuous development of chip design, the application of chips is becoming more and more extensive, which makes the interface of serial communication more and more important. For example, in the audio control of a car, two sets of IIC interfaces, one set of SPI interfaces, and two sets of UART interfaces may be required; while the body control of the entire car may require three sets of SPI interfaces, and two sets of UART interfaces; due to the application Different scenarios require ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/42
CPCG06F13/4282
Inventor 兰光洋王粟肖佐楠郑茳
Owner 天津国芯科技有限公司
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