关于“软件设计周”的东西,虽然我是学计算机的,但是由于一些安排,跨界搞了两周。做的很奇怪,一部分也是迎合验收要求。都用上单片机、LCD了,还在用摩尔斯电码。而且我感觉整个实体机大概率跑不起来,只能活在仿真里,这么一想就更魔幻了。。。
东西做的比较粗糙,但是还是发出来吧,哪怕是有人复制一下数组,也可以让人家少写个辅助的小程序。
仿真原理图如下(proteus仿真工程文件可到本帖附件中下载)
一共有32个按键,第一个是模式选择键,有三种模式,同时控制三盏LED显示模式
模式1中第二个键为传统电键,就是谍报剧里经常看见的那种
模式2中第二三个键构成了双桨自动电键,按住就连续持续发点或者划
模式3中后26个键是个英文字母,自动发报
有一个卡了一整子的点是,我不理解,为啥MSP430搞矩阵键盘,只能是输出低电平,拉低某一引脚,我不是学这个的,也没深究。
示波器输出两种波形,一种是电报波,另一种是调制波,调制波的频率就是系统的总“帧率”
D4是自动发报提示,熄灭表示在自动发报,自动发报序列里面有东西,是不响应新发报请求的
D5是暂停提示,熄灭时表示暂停记录
LCD显示已经保存的电报,支持暂停保存,清空已有,自动重发。
缓存32位的01串,实际上人的操作可能会有一点相位差,那么根据奈奎斯特采样定律,采用两倍采样即可完成无损还原。所以程序内部存储为64位。理想来说,应该用移位来处理的,实际上为了写起来方便,用了64个int,大概率会影响时序什么的。
使用了若干计数器,每10个程序帧,记录一次,每20个程序帧显示一次,等等。
电码的码率是,额,玄学,因为我不懂引入外部中断什么的,整个时序逻辑还是挺怪的。而且在仿真情况下,delay也不清楚究竟怎延迟,还要驱动LCD。或许将程序帧和外部的某个计时中断绑定,可以一定程度上解决问题,但我的单片机编程是现学现卖的,只要能过学校老师的验收就行,我是学信安的,有不足的地方就卖个萌混过去吧0v0。
单片机代码如下,变量命名比较乱,ACM打多了改不过来了- #include "io430.h"
- #define uint unsigned int
- uint kd;
- uint mode=0x01;
- uint rem=0;
- void delay(uint t)
- {
- uint i;
- while(t--)
- for(i=40;i>0;i--);
- }
- void KEY_J(void)//矩阵键盘函数
- {
- kd=0;
- P1DIR=0xff;
- P1OUT=0x00;//当我定义0xff,意味着我就开始了列扫描,从高位到底
- P2DIR=0x00;
- if((P2IN&0x0f)!=0x0f)//如果有变化,那应该是有按键被按下
- {
- delay(10);//防抖
- if((P2IN&0x0f)!=0x0f){
- switch((P2IN&0x0f))//按照顺序,被按下的引脚会变成低电平,依次来判断哪一行被按下。
- {
- case 0x0e:kd=kd;break; //第一行得到的数就是第几列
- case 0x0d:kd=kd+8;break;//第二行得到的数就是第几列加8
- case 0x0b:kd=kd+16;break;
- case 0x07:kd=kd+24;break;
- }
- P1DIR=0x00;
- P2DIR=0x0f;
- P2OUT=0x00;
- switch(P1IN)//按照顺序,被按下的引脚会变成低电平,依次来判断哪一行被按下。
- {
- case 0xfe:kd=kd+1;break; //第一行得到的数就是第几列
- case 0xfd:kd=kd+2;break;//第二行得到的数就是第几列加8
- case 0xfb:kd=kd+3;break;
- case 0xf7:kd=kd+4;break;
- case 0xef:kd=kd+5;break;
- case 0xdf:kd=kd+6;break;
- case 0xbf:kd=kd+7;break;
- case 0x7f:kd=kd+8;break;
- }
- }
- }
- return;
- }
- void cha_mod(){
- mode=mode<<1;
- if(mode==0x08)mode=0x01;
- //P3OUT=mode;
- P3OUT=P3OUT&(mode|0xf8);
- P3OUT=P3OUT|(mode&0x07);
- delay(5000);
- }
- uint pau=0;
- void cha_pau(){
- pau=pau^1;
- if(pau)
- P3OUT=P3OUT|0x40;
- else
- P3OUT=P3OUT&0xbf;
- delay(5000);
- }
- #define MYSET1 P3OUT|=0x08
- #define MYSET0 P3OUT&=0xf7
- uint UDP=0;
- void tiaozhi(){
- UDP=UDP^1;
- if((P3OUT&0x08)&&UDP)
- P3OUT|=0x10;
- else
- P3OUT&=0xef;
- }
- uint plot=0,cnt_rec=0;
- uint rect=0;
- uint rec[64];
- void rec_ins(){
- if(rect<64){
- if(P3OUT&0x08)
- rec[rect]=1;
- else
- rec[rect]=0;
- rect++;
- }else{
- for(int i=0;i<63;i++)
- rec[i]=rec[i+1];
- if(P3OUT&0x08)
- rec[63]=1;
- else
- rec[63]=0;
- }
- }
- #define LCDIO P4OUT
- #define LCD1602_RS_1 P5OUT|=1
- #define LCD1602_RS_0 P5OUT&=~1
- #define LCD1602_RW_1 P5OUT|=2
- #define LCD1602_RW_0 P5OUT&=~2
- #define LCD1602_EN_1 P5OUT|=4
- #define LCD1602_EN_0 P5OUT&=~4
- void LCD_check_busy()
- {
- P1DIR=0x00;
- LCDIO=0xff;
- LCD1602_RS_0;
- LCD1602_RW_1;
- LCD1602_EN_1;
- while(P1IN&0x80);
- LCD1602_EN_0;
- P1OUT=0x00;
- P1DIR=0xFF;
- }
- void LCD_write_command(unsigned char command)
- {
- //LCD_check_busy();
- LCD1602_RS_0;
- LCDIO=command;
- LCD1602_EN_1;
- //delayms(1);
- LCD1602_EN_0;
- delay(1);
- }
- void LCD_write_dat( unsigned char dat)
- {
- //LCD_check_busy();
- LCD1602_RS_1;
- LCDIO=dat;
- LCD1602_EN_1;
- //delayms(1);
- LCD1602_EN_0;
- delay(1);
- LCD1602_RS_0;
- }
- void LCD_set_xy( unsigned char x, unsigned char y )
- {
- unsigned char address;
- if (y == 1)
- address = 0x80+x;
- else if (y == 2)
- {
- address=0x80+0x40+x;
- }
- LCD_write_command(address);
- }
- void LCD_dsp_char( unsigned char x,unsigned char y, char dat)
- {
- LCD_set_xy( x, y );
- LCD_write_dat(dat);
- }
- void LCD_init(void)
- {
- P4DIR=0xFF;
- P4SEL=0;
- P5DIR=0xFF;
- P5SEL=0;
- P5OUT=0x00;
- P4OUT=0x00;
- delay(200);
- LCD1602_RW_0;
- LCD1602_EN_0;
- //CLEARSCREEN;//clear screen
- LCD_write_command(0x38);//set 8 bit data transmission mode
- delay(10);
- LCD_write_command(0x38);//set 8 bit data transmission mode
- delay(10);
- LCD_write_command(0x38);//set 8 bit data transmission mode
- delay(10);
- LCD_write_command(0x06);//open display (enable lcd display)
- delay(10);
- LCD_write_command(0x0C);//set lcd first display address
- delay(10);
- LCD_write_command(0x01);//clear screen
- delay(10);
- //LCD_write_command(0x80);//clear screen
- //delayms(1);
- }
- void dis_set(uint pos,char ch){
- if(pos<16)
- LCD_dsp_char(pos,1,ch);
- else
- LCD_dsp_char(pos-16,2,ch);
- }
- void display(){
- for(int i=0;i<rect;i+=2){
- if(rec[i])
- dis_set(i>>1,'=');
- else
- dis_set(i>>1,'.');
- }
- for(int i=rect;i<64;i+=2){
- dis_set(i>>1,' ');
- }
- }
- uint snd[30][16]={
- 1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
- 1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,
- 1,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,
- 1,1,1,0,1,0,1,0,1,0,0,0,0,0,0,0,
- 1,1,1,0,1,0,1,1,1,0,1,0,0,0,0,0,
- 1,1,1,0,1,0,1,0,0,0,0,0,0,0,0,0,
- 1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
- 1,0,1,0,1,1,1,0,1,0,0,0,0,0,0,0,
- 1,1,1,0,1,1,1,0,1,0,0,0,0,0,0,0,
- 1,0,1,0,1,0,1,0,0,0,0,0,0,0,0,0,
- 1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,
- 1,0,1,1,1,0,1,1,1,0,1,1,1,0,0,0,
- 1,1,1,0,1,0,1,1,1,0,0,0,0,0,0,0,
- 1,0,1,1,1,0,1,0,1,0,0,0,0,0,0,0,
- 1,1,1,0,1,1,1,0,0,0,0,0,0,0,0,0,
- 1,1,1,0,1,0,0,0,0,0,0,0,0,0,0,0,
- 1,1,1,0,1,1,1,0,1,1,1,0,0,0,0,0,
- 1,0,1,1,1,0,1,1,1,0,1,0,0,0,0,0,
- 1,1,1,0,1,1,1,0,1,0,1,1,1,0,0,0,
- 1,0,1,1,1,0,1,0,0,0,0,0,0,0,0,0,
- 1,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,
- 1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,
- 1,0,1,0,1,1,1,0,0,0,0,0,0,0,0,0,
- 1,0,1,0,1,0,1,1,1,0,0,0,0,0,0,0,
- 1,0,1,1,1,0,1,1,1,0,0,0,0,0,0,0,
- 1,1,1,0,1,0,1,0,1,1,1,0,0,0,0,0,
- 1,1,1,0,1,0,1,1,1,0,1,1,1,0,0,0,
- 1,1,1,0,1,1,1,0,1,0,1,0,0,0,0,0,
- };
- uint siz[30]={2,4,6,10,12,8,2,10,10,8,4,14,10,10,8,6,12,12,14,8,6,4,8,10,10,12,14};
- uint luc[32];
- int bro;
- void ins(int tar){
- P6OUT=0xff;
- rem=siz[tar];
- for(int i=0;i<siz[tar];i++){
- luc[rem-i]=snd[tar][i];
- }
- MYSET1;
- bro=0;
- return;
- }
- void rep(){
- P6OUT=0xff;
- rem=rect>>1;;
- for(int i=0;i<rem;i++){
- luc[rem-i]=rec[i<<1];
- }
- MYSET1;
- bro=0;
- return;
- }
- void init(){
- WDTCTL = WDTPW + WDTHOLD;
- P3DIR=0xff;
- P3OUT=0x01;
- mode=0x01;
- LCD_init();
- return;
- }
- void sol1(){
- if(kd==2)
- MYSET1;
- else
- MYSET0;
- return;
- }
- void sol2(){
- if(kd==2)
- ins(0);
- if(kd==3)
- ins(1);
- }
- void sol3(){
- if(kd>=7)
- ins(kd-5);
- }
- int main( void )
- {
- init();
- while(1){
- KEY_J();
- if(kd==0){delay(10);}
- if(rem){
- P3OUT|=0x20;
- bro++;
- if(bro>=20){
- bro=0;
- rem--;
- if(luc[rem])
- MYSET1;
- else
- MYSET0;
- }
- }else{
- if(kd==1){cha_mod();}
- if(mode==0x01){sol1();}
- if(mode==0x02){sol2();}
- if(mode==0x04){sol3();}
- if(rem==0)
- P3OUT&=0xdf;
- if(kd==4){cha_pau();}
- if(kd==5){rect=0;}
- if(kd==6){rep();}
- }
- P6DIR=0xff;
- //P6OUT=rem;
- cnt_rec++;
- if(cnt_rec>=10){
- cnt_rec=0;
- if(pau==0)
- rec_ins();
- }
- plot++;
- if(plot>=20){
- plot=0;
- display();
- delay(0);
- }else{
- delay(64);
- }
- tiaozhi();
- };
- }
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