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### uVision2 Project, (C) Keil Software ### Do not modify ! Target (Target 1), 0x0000 // Tools: 'MCS-51' Group (Source Group 1) File 1,2, 0x0 Options 1,0,0

//***************************************************************************** // File: speaker.c // // Description: // This file contains the functions: control the speaker to sound // //

如何让 Speaker或喇叭发出自订频率的声音 如何让 Speaker或喇叭发出自订频率的声音

你 可 以 直 接 控 制 喇 叭 端 口 。 具 体 的 做 法 可 以 参 考 http://www.zealsoftstudio.com/cn/vbio的 VBIO.DLL的 Speaker示 例 。 这 个 方 法 在 很 多 8086/8088原 理 的 书 上 有 介 绍

package product; /** * @author 韦建艺 0658025 * @2008.11.04 * @ */ public class Stereo extends product { public int speaker; public int getspeaker() { return speaker; } public int

#include #include void main (int argc, char *argv[]) { int count; // The number of times to sound the speaker int i; // The number of times the speaker has bee

#include #include void main (int argc, char *argv[]) { int count; // The number of times to sound the speaker int i; // The number of times the speaker has bee

dspcl speaker.c -g -v2xx -as -frF:\ICETEK-5100\For_C2000\EVM2000\2407EDULab\Lab15-Speaker [speaker.c] TMS320C2x/C2xx/C5x ANSI C Compiler Version 7.00 Copyright (c) 1987-1999 Texas Instrume

/************* Code Composer V1 Project Data ******************** The following section contains data generated by Code Composer to store project information like build options, source filenames

Speaker equ P1.0 Loop: clr Speaker call Delay setb Speaker call Delay ljmp Loop Delay: mov r0, #50 djnz r0, $