怎么用单片机C语言编写驱动蜂鸣器发出7个音的电路图和程序代码(最好有...答:0xF9,0xF9,0xFA,0xFA,0xFB,0xFB,0xFC,0xFC, //1,2,3,4,5,6,7,8,i 0xFC,0xFD,0xFD,0xFD,0xFD,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFF,} ;// 音阶频率表 定时器低八位 code unsigned char FREQL[]={ 0x42,0xC1,0x17,0xB6,0xD0,0xD1,0xB6,0x21,0xE1,0x8C,...