基于单片机的PCBA自动测试系统的设计与实现
发布时间：2018-09-19 19:28
【摘要】：实装电路板PCBA作为现代电子设备的重要组成部分,其生产质量直接影响到产品的功能和性能。目前工厂对PCBA的生产品质检验工作大部分由人工完成,检测过程中因人为因素的影响,常常发生误检、漏检等问题,并且检测效率低下。本文研制了一套针对MSP430硬件工具PCBA的专用自动测试系统,功能包括程序烧写,电压检测,晶振检测,通讯检测,硬件通路检测,FLASH检测,FRAM检测,EEPROM检测,设备ID获取,测试信息记录等。本文主要工作内容包括：测试系统检测电路硬件设计；测试系统主控程序设计；四类MSP430硬件工具测试下位机程序编写；基于Visual Basic的PC上位机软件开发；测试治具架构设计。本文的工作重点在于测试系统硬件电路的设计和测试程序的编写；难点在于根据四类MSP430硬件工具的工作原理设计相应的检测项目。本文已成功实现了测试系统的各项自动检测功能,且兼容四类MSP430硬件工具的检测,并已成功应用于工厂的生产测试流水线上,大大提高了工厂的检测效率,降低了人力资源成本,为工厂节省了开支。
[Abstract]:As an important part of modern electronic equipment, the production quality of real circuit board (PCBA) directly affects the function and performance of the product. At present, most of the production quality inspection of PCBA in factories is done by manual work. Due to the influence of human factors in the inspection process, problems such as false detection and missed inspection often occur, and the detection efficiency is low. In this paper, a special automatic test system for MSP430 hardware tool PCBA is developed. Its functions include program writing, voltage detection, crystal oscillator detection, communication detection, hardware path detection, flash detection, FRAM detection, EEPROM detection, equipment ID acquisition, etc. Test information record etc. The main work of this paper includes: testing circuit hardware design of test system; main control program design of test system; programming of four kinds of MSP430 hardware tools to test lower computer; PC host computer software development based on Visual Basic; structure design of test fixture. The emphasis of this paper is on the design of the hardware circuit of the test system and the writing of the test program, and the difficulty is to design the corresponding inspection items according to the working principle of the four kinds of MSP430 hardware tools. This paper has successfully realized all the automatic testing functions of the test system, and is compatible with four kinds of MSP430 hardware tools, and has been successfully applied to the production test pipeline of the factory, which greatly improves the efficiency of the factory testing. Reduce the cost of human resources and save money for the factory.
【学位授予单位】：杭州电子科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN407
[Abstract]:As an important part of modern electronic equipment, the production quality of real circuit board (PCBA) directly affects the function and performance of the product. At present, most of the production quality inspection of PCBA in factories is done by manual work. Due to the influence of human factors in the inspection process, problems such as false detection and missed inspection often occur, and the detection efficiency is low. In this paper, a special automatic test system for MSP430 hardware tool PCBA is developed. Its functions include program writing, voltage detection, crystal oscillator detection, communication detection, hardware path detection, flash detection, FRAM detection, EEPROM detection, equipment ID acquisition, etc. Test information record etc. The main work of this paper includes: testing circuit hardware design of test system; main control program design of test system; programming of four kinds of MSP430 hardware tools to test lower computer; PC host computer software development based on Visual Basic; structure design of test fixture. The emphasis of this paper is on the design of the hardware circuit of the test system and the writing of the test program, and the difficulty is to design the corresponding inspection items according to the working principle of the four kinds of MSP430 hardware tools. This paper has successfully realized all the automatic testing functions of the test system, and is compatible with four kinds of MSP430 hardware tools, and has been successfully applied to the production test pipeline of the factory, which greatly improves the efficiency of the factory testing. Reduce the cost of human resources and save money for the factory.
【学位授予单位】：杭州电子科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN407
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