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Signal conversion device, system and method for on-line programming of single-chip microcomputer

A technology of signal conversion device and single-chip microcomputer, which is applied in the direction of general control system, control/regulation system, program control, etc., and can solve problems such as troublesome operation steps

Pending Publication Date: 2021-09-10
小华半导体有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are various types of single-chip microcomputers. Some types of single-chip microcomputers have a special online programming method due to application requirements—it can be programmed through the communication interface (UART) and supports single-line (TOOL0) mode programming. At this time, the general-purpose programmer It cannot meet the requirements, and an external signal conversion device is required for processing
[0004] At present, there is no such device in the field that is suitable for the signal conversion of the programmer. Therefore, when the single-chip microcomputer with special programming requirements needs to program in large quantities, the operation steps are very troublesome.

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  • Signal conversion device, system and method for on-line programming of single-chip microcomputer
  • Signal conversion device, system and method for on-line programming of single-chip microcomputer
  • Signal conversion device, system and method for on-line programming of single-chip microcomputer

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Embodiment Construction

[0035] In the following description, the present invention is described with reference to various examples. One skilled in the art will recognize, however, that the various embodiments may be practiced without one or more of the specific details, or with other alternative and / or additional methods, materials, or components. In other instances, well-known structures, materials, or operations are not shown or described in detail so as not to obscure aspects of the various embodiments of the invention. Similarly, for purposes of explanation, specific quantities, materials and configurations are set forth in order to provide a thorough understanding of embodiments of the invention. However, the invention may be practiced without these specific details. Furthermore, it should be understood that the various embodiments shown in the drawings are illustrative representations and are not necessarily drawn to scale.

[0036] In this specification, reference to "one embodiment" or "the...

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Abstract

The invention discloses a signal conversion device for on-line programming of a single-chip microcomputer. The device comprises a programmer interface, a target chip interface and an MCU, wherein the programmer interface is connected with an external programmer; the target chip interface is connected with a target chip which needs to be subjected to on-line programming; and the MCU is arranged between the programmer interface and the target chip interface, and the MCU selects to carry out double-wire universal asynchronous receiver / transmitter programming or single-wire programming on the target chip according to a double-wire universal asynchronous receiver / transmitter programming signal received by the programmer interface from the programmer. By adopting the signal conversion device, system and method for on-line programming of the single chip microcomputer, the problem that an existing programmer cannot burn some specific chips can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of on-line programming of single-chip microcomputers. Specifically, the invention relates to a device, system and method for realizing on-line programming signal conversion in a single-chip microcomputer system. Background technique [0002] Due to the development of single-chip program memory such as FLASH, it is easier and more feasible to burn and update firmware. The package of the chip is getting more and more precise, making it difficult to move the chip. The online programming ISP (In System Program) of the MCU (Microcontroller Unit) means that the user does not need to remove the MCU from the PCBA (Printed Circuit Board Assembly) assembled, and put it in a specific programmer to burn the program. It can be directly completed on the printed circuit board by the programmer PGM (Programmer) through the communication interface of the single-chip microcomputer. The communication interface of the microco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
CPCG05B19/0426G05B2219/23146
Inventor 陈阳何筱张晓黎
Owner 小华半导体有限公司
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