Single-chip microcomputer multifunctional programming debugging interface circuit and method

Abstract

The invention discloses a multifunctional programming and debugging interface circuit and method for a single chip microcomputer. The multifunctional programming and debugging interface circuit comprises an online programming and debugging switching interface, a serial port connector, a level conversion circuit, a first OC gate circuit, a second OC gate circuit, a burning switching interface and an integrated interface circuit, the on-line programming debugging switching interface is connected with the integrated interface circuit, the serial port connector is respectively connected with the level conversion circuit, the first OC gate circuit and the second OC gate circuit, the level conversion circuit is respectively connected with the burning switching interface and the serial port connector, and the first OC gate circuit and the second OC gate circuit are both connected with the burning switching interface and the serial port connector; by integrating burning, communication and on-line programming debugging technologies, the single-chip microcomputer has the functions of on-line programming debugging, burning and communication, and when the single-chip microcomputer is debugged on line, communication between the single-chip microcomputer and an upper computer can be rapidly achieved without manual intervention, and data interaction is carried out.

Description

technical field [0001] The invention relates to the technical field of debugging interfaces, in particular to a multifunctional programming debugging interface circuit and method of a single-chip microcomputer. Background technique [0002] At present, the traditional solution for debugging and programming the single-chip microcomputer is generally carried out through different interfaces, which needs to occupy more pins of the single-chip microcomputer, resulting in high chip cost, and the traditional single-chip microcomputer online debugging requires manual intervention to achieve The microcontroller communicates with the host computer and performs data exchange. [0003] Therefore, how to provide a multifunctional programming and debugging interface circuit and method integrating online programming and debugging, ISP programming, and communication functions is an urgent problem to be solved by those skilled in the art. SUMMARY OF THE INVENTION [0004] In view of this...

AI Technical Summary

Problems solved by technology

[0002] At present, the traditional solution for debugging and programming the MCU is generally carried out through different interfaces, which needs to occupy more pins of the MCU, resulting in higher chip cost, and the traditional online debugging of the MCU requires manual intervention to achieve The microcontroller communicates with the host computer and performs data interaction

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