ST套件产生报警音

本实例的目的是让大家学会用单片机产生声音的方法，学会计算程序所用时间

本实例的功能是能PIC16F84产生报警音，频率分两个0.1s第一个

0.1S频率从1.8K-3.5K匀速增加第二个0.1S频率从3.5K-1.8K匀速减少,

程序复位后,蜂鸣器开始报警

PIC单片机学习网-----http://www.pic16.com

烧写时应注意：配置位已经在程序中写明，加载HEX文件时会自动加载，烧写时不用再手动设置配置位。

实验时请注意套件跳线选择；-　ST kit sound an alarm　this instance the goal is to produce the sound you learn to use the SCM approach, learn procedures used in calculating the time　the instance of an alarm function is to PIC16F84 tone, frequency, the first two 0.1s　0.1S uniform frequency from 1.8K-3.5K to add a second frequency from 3.5K-1.8K 0.1S uniform reduction　program reset, buzzer alarm　PIC MCU Learning Network----- http:// www. pic16.com　programming should pay attention to: Configuration bit has been stated in the program, load the HEX file will be automatically loaded when you no longer need to manually set the programmed configuration bits.　 Test suite, please note the jumper options