我的MIDI键盘程序 作者： 时间：2016-11-29 来源：网络 加入技术交流群 扫码加入和技术大咖面对面交流海量资料库查询 收藏 <a href='https://ad.eepw.com.cn/www/delivery/ck.php?n=a635e61e&cb=INSERT_RANDOM_NUMBER_HERE' target='_blank'><img src='https://ad.eepw.com.cn/www/delivery/avw.php?zoneid=88&cb=INSERT_RANDOM_NUMBER_HERE&n=a635e61e' border='0' alt='' /></a> <a href='https://ad.eepw.com.cn/www/delivery/ck.php?n=a576c0a2&cb=INSERT_RANDOM_NUMBER_HERE' target='_blank'><img src='https://ad.eepw.com.cn/www/delivery/avw.php?zoneid=87&cb=INSERT_RANDOM_NUMBER_HERE&n=a576c0a2' border='0' alt='' /></a> //--------------------------------------------------------------------------------------------------// 函数名称： slavesenddata// 入口参数： control,note and vel// 函数功能： 发送MIDI信息在IIC总线上//--------------------------------------------------------------------------------------------------//保证Simple.不使用标准I2C协议。 发送从机地址，等ACK,再发送发送3byte数据，等ACK.It s very simple.void slavesenddata(unsigned char control,unsigned char note,unsigned char svel){EA=0;IT0=0; //外中断0为 下降沿触发 设定成低电平出发的话 容易导致 误触发EX0=0; //开外部中断0iic_start();SystemError=1;IICSendByte(SlaveAddress);//发送地址if (IICwaitACK()) //等主机的回应{IICSendByte(control);IICSendByte(note);IICSendByte(svel);if (IICwaitACK()) //等主机的回应{SystemError=0;}}iic_stop();IT0=1; //地址不对就不去管了EX0=1; //开中断继续EA=1;}void initial_i2c(){IT0=1; //外中断0为 下降沿触发 设定成低电平出发的话 容易导致 误触发EX0=1; //开外部中断0EA=1;}void recvint0() interrupt 0 using 2{unsigned char mAddress=0;EA=0;IT0=0; //EX0=0; //关中断防止干扰//slave_ACK();mAddress=IICreceiveByte();if (mAddress==MasterAddress){slave_ACK();s_control=IICreceiveByte();s_note=IICreceiveByte();s_svel=IICreceiveByte();nm=1; //提示主程序有新的消息，请注意查收～}else{//延时，不能这样退出去引发中断//ACK占用两个周期，接受数据占用10个周期。延够时了就跑delayNOP();delayNOP();delayNOP();delayNOP();delayNOP();delayNOP();delayNOP();delayNOP();}IT0=1; //地址不对就不去管了EX0=1; //开中断继续EA=1;} //下面是引脚的连接以及相关必要的宏定义//Crystal at 12MHz#ifdef io_74hc165_SH_LD#else#define io_74hc165_SH_LD P1_0 //默认设置#endif#ifdef io_74hc165_CLK#else#define io_74hc165_CLK P1_1#endif#ifdef io_74hc165_SDA#else#define io_74hc165_SDA P1_2#endif#define io_74hc165_SH_HIGH io_74hc165_SH_LD=1;#define io_74hc165_SH_LOW io_74hc165_SH_LD=1;#ifdef io_74hc164_SCK#else#define io_74hc164_SCK P1_3#endif#ifdef io_74hc164_SDA#else#define io_74hc164_SDA P1_4#endif#define IO_74HC164_SCK_HIGH io_74hc164_SCK = 1 ;#define IO_74HC164_SCK_LOW io_74hc164_SCK = 0 ;#define IO_74HC164_SDA_INPUT io_74hc164_SDA//使用165来接受键盘数据。两片作为164输出。#define uint8 unsigned char#define uchar unsigned char#define uint unsigned intuchar keytype=2;//#define keytype 2#define blacklist_time 240uchar kbtime=0; //记录时间,占2个字节uchar keynumber[2][7]; //记录键位，占14个字节uchar blacklist[7];//uchar code seg[]={"admin"};/*0->NoTouch Response1->Very Soft Touch Response2->Soft Touch Response3->Medium Touch Response4->Hard Touch Response5->Very Hard Touch Response*/uchar code vel[5][251]={{//Very Soft127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,126,126,125,124,124,123,122,122,121,120,120,119,118,118,117,116,116,115,114,114,113,112,112,111,110,110,109,108,108,107,106,106,105,104,104,103,102,102,101,100,100,99,98,98,97,96,96,95,94,94,93,92,92,91,90,90,89,88,88,87,86,86,85,84,84,83,82,82,81,80,80,79,78,78,77,76,76,75,74,74,73,72,72,71,70,70,69,68,68,67,66,66,65,64,64,63,62,62,61,60,60,59,58,58,57,56,56,55,54,54,53,52,52,51,50,50,49,48,48,47,46,46,45,44,44,43,42,42,41,40,40,39,38,38,37,36,36,35,34,34,33,32,32,31,30,30,29,28,28,27,26,26,25,24,24,23,22,22,21,20,20,19,18,18,17,16,16,15,14,14,13,12,12,11,10,10,9,8,8,7,6,6,5,4,4,3,2,2,1,0},{//Soft127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,126,125,125,124,124,123,122,122,121,121,120,120,119,118,118,117,117,116,115,115,114,114,113,112,112,111,111,110,110,109,108,108,107,107,106,105,105,104,104,103,102,102,101,101,100,100,99,98,98,97,97,96,95,95,94,94,93,92,92,91,91,90,90,89,88,88,87,87,86,85,85,84,84,83,82,82,81,81,80,80,79,78,78,77,77,76,75,75,74,74,73,72,72,71,71,70,70,69,68,68,67,67,66,65,65,64,64,63,62,62,61,61,60,60,59,58,58,57,57,56,55,55,54,54,53,52,52,51,51,50,50,49,48,48,47,47,46,45,45,44,44,43,42,42,41,41,40,40,39,38,38,37,37,36,35,35,34,34,33,32,32,31,31,30,30,29,28,28,27,27,26,25,25,24,24,23,22,22,21,21,20,20,19,18,18,17,17,16,15,15,14,14,13,12,12,11,11,10,10,9,8,8,7,7,6,5,5,4,4,3,2,2,1,1,0},{//Medium127,127,127,127,127,127,127,127,127,126,126,125,125,124,124,123,123,122,122,121,121,120,120,119,118,118,117,117,116,116,115,115,114,114,113,113,112,112,111,111,110,110,109,108,108,107,107,106,106,105,105,104,104,103,103,102,102,101,101,100,100,99,98,98,97,97,96,96,95,95,94,94,93,93,92,92,91,91,90,90,89,88,88,87,87,86,86,85,85,84,84,83,83,82,82,81,81,80,80,79,78,78,77,77,76,76,75,75,74,74,73,73,72,72,71,71,70,70,69,68,68,67,67,66,66,65,65,64,64,63,63,62,62,61,61,60,60,59,58,58,57,57,56,56,55,55,54,54,53,53,52,52,51,51,50,50,49,48,48,47,47,46,46,45,45,44,44,43,43,42,42,41,41,40,40,39,38,38,37,37,36,36,35,35,34,34,33,33,32,32,31,31,30,30,29,28,28,27,27,26,26,25,25,24,24,23,23,22,22,21,21,20,20,19,18,18,17,17,16,16,15,15,14,14,13,13,12,12,11,11,10,10,9,8,8,7,7,6,6,5,5,4,4,3,3,2,2,1,1,0},{//Hard100,99,99,98,98,98,97,97,96,96,96,95,95,94,94,94,93,93,92,92,92,91,91,90,90,90,89,89,88,88,88,87,87,86,86,86,85,85,84,84,84,83,83,82,82,82,81,81,80,80,80,79,79,78,78,78,77,77,76,76,76,75,75,74,74,74,73,73,72,72,72,71,71,70,70,70,69,69,68,68,68,67,67,66,66,66,65,65,64,64,64,63,63,62,62,62,61,61,60,60,60,59,59,58,58,58,57,57,56,56,56,55,55,54,54,54,53,53,52,52,52,51,51,50,50,50,49,49,48,48,48,47,47,46,46,46,45,45,44,44,44,43,43,42,42,42,41,41,40,40,40,39,39,38,38,38,37,37,36,36,36,35,35,34,34,34,33,33,32,32,32,31,31,30,30,30,29,29,28,28,28,27,27,26,26,26,25,25,24,24,24,23,23,22,22,22,21,21,20,20,20,19,19,18,18,18,17,17,16,16,16,15,15,14,14,14,13,13,12,12,12,11,11,10,10,10,9,9,8,8,8,7,7,6,6,6,5,5,4,4,4,3,3,2,2,2,1,1,0,0},{//Very Hard92,92,91,91,91,90,90,90,89,89,88,88,88,87,87,87,86,86,85,85,85,84,84,84,83,83,82,82,82,81,81,81,80,80,80,79,79,78,78,78,77,77,77,76,76,75,75,75,74,74,74,73,73,72,72,72,71,71,71,70,70,70,69,69,68,68,68,67,67,67,66,66,65,65,65,64,64,64,63,63,62,62,62,61,61,61,60,60,59,59,59,58,58,58,57,57,57,56,56,55,55,55,54,54,54,53,53,52,52,52,51,51,51,50,50,50,49,49,48,48,48,47,47,47,46,46,45,45,45,44,44,44,43,43,42,42,42,41,41,41,40,40,40,39,39,38,38,38,37,37,37,36,36,35,35,35,34,34,34,33,33,32,32,32,31,31,31,30,30,29,29,29,28,28,28,27,27,27,26,26,25,25,25,24,24,24,23,23,22,22,22,21,21,21,20,20,20,19,19,18,18,18,17,17,17,16,16,15,15,15,14,14,14,13,13,12,12,12,11,11,11,10,10,10,9,9,8,8,8,7,7,7,6,6,5,5,5,4,4,4,3,3,2,2,2,1,1,1,0,0}};uchar count_begin[7][7]; //记录按键时间，占49个字节//在钢琴上压键时间大于500mS可以几乎认为是没有力度了啊//VIO//VIO程序开始。void v_74hc164WriteData_f( uint8 Dat ) //向74HC164写一个字节的内容{ //即可并行输出该字节uint8 i = 0 ;uint8 SendData = Dat ;for( i = 8 ; i > 0 ; i-- ){IO_74HC164_SCK_LOWSendData <<= 1 ;IO_74HC164_SDA_INPUT = CY ;IO_74HC164_SCK_HIGH}}uchar v_74hc165ReadData_f(){uchar i,c=0x00;for (i=0;i<8;i++){c<=1; //0000 0010if(io_74hc165_SDA){c=c|0x01;}io_74hc165_CLK=0; //下降沿有效io_74hc165_CLK=0;io_74hc165_CLK=1;//进位}return c;}//VIO结束/*74HC1651 BIT1~8 KB DATA 1~874HC1652 BIT1~8 KB DATA 9~1674HC5952 BIT1~8 KB CS 1～8*/void initial_clock(){ TMOD=0x00;TH0=0x10;TL0=0xC1;PCON=0x80;}/*MIDI命令简表命令代码（cc）命令说明数据kk含义及说明数据vv含义及说明8+ 通道号关闭音符对应的MIDI音符0－127关闭音符的速度值9+ 通道号开启音符对应的MIDI音符0－127压下琴键的速度值（力度）A+ 通道号触后压力对应的MIDI音符0－127对应音符的触后压力值B+ 通道号控制器控制器号0－7777－7F为通道模式信息控制器值C+ 通道号音色切换音色号 0－127无该字节数据D+ 通道号通道压力该通道全部键盘的触后压力无该字节数据E+ 通道号弯音轮弯音轮低位数据弯音轮高位数据F系统普通信息、实时信息、及高级信息代码忽略忽略*/ 上一页 1 2 3 下一页
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