Diff: main.cpp

Revision:

0:b98487737435

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed May 12 22:14:44 2021 +0000
@@ -0,0 +1,223 @@
+#include "mbed.h"
+
+//10の割り算 0から1028までは、正しい。主に0から999
+#define DVI10(n) ((n*205)>>11)
+
+//Serial pc(USBTX, USBRX); // tx, rx
+//Serial pc(SERIAL_TX, SERIAL_RX); //767
+//Serial pc(PA_2, PA_3); //010
+//Serial pc(PA_9, PA_10); //010
+
+#define UART_DELAY 96 //  1/9600
+
+DigitalOut TX(PA_2);
+DigitalIn  RX(PA_3);
+//DigitalOut TX(PA_9);
+//DigitalIn  RX(PA_10);
+
+char ch_hex_a_b[5];
+char *ch_hex_a(int l_num)
+{
+    int a,b,c;
+
+    int q=0;
+if(l_num  < 0) { l_num = 0 - l_num; q = 1;} 
+
+    b=DVI10(l_num);
+    c=l_num-(b*10);
+    l_num=b;
+    a=DVI10(l_num);
+    b=l_num-(a*10);
+
+    ch_hex_a_b[0] = '0' + a;
+    ch_hex_a_b[1] = '0' + b;
+    ch_hex_a_b[2] = '0' + c;
+    ch_hex_a_b[3] = 0;
+
+if( q == 1 ) {ch_hex_a_b[0]='-';}
+
+    return(ch_hex_a_b);
+} //ch_hex_a
+
+
+//仮想シリアルへの一文字出力 9600bps
+int pc_putc(char ch) {
+        
+    TX=1;
+    TX=0;//START
+    wait_us(UART_DELAY);
+
+    for(int ii=0;ii<8;ii++){
+        TX=(ch>>ii)&1;
+        wait_us(UART_DELAY);
+    }; //for
+
+    TX=1;//Stop
+    wait_us(UART_DELAY);
+             
+    return(0);
+    
+} //pc_putc
+
+//文字列の表示
+int pc_printf(char *str1) {
+
+    int ii = 0; //ループカウンター
+    while(str1[ii]!=0){
+            
+        //一文字出力
+        pc_putc(str1[ii]);ii++;
+                        
+    } //while
+
+    //戻り値
+    return(0);
+}
+
+//タイマーの定義
+Timer t;
+
+int a,b,c,d,e,f,g,h;
+int bs;
+int zt,at,bt,ct,dt,et,ft,gt,ht,it;
+char *ret1="\r\n";
+
+
+int pc_getc()
+{
+
+    //待ちループ
+    while( RX == 1 ) {} 
+
+//llllllllllllllllllllllllllllllllllllllll
+
+    zt = t.read_us();
+
+    wait_us(156-7-12);
+
+    a=RX;
+    at = t.read_us();
+
+    wait_us(104-7-11);
+
+    b=RX;
+    bt = t.read_us();
+
+    wait_us(104-7-11);
+
+    c=RX;
+    ct = t.read_us();
+
+    wait_us(104-7-11);
+
+    d=RX;
+    dt = t.read_us();
+    
+    wait_us(104-7-10);
+    
+//hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh   
+    
+    e=RX;
+    et = t.read_us();
+
+    wait_us(104-7-11);
+
+    f=RX;
+    ft = t.read_us();
+
+    wait_us(104-7-12);
+
+    g=RX;
+    gt = t.read_us();
+
+    wait_us(104-7-11);
+
+    h=RX;
+    ht = t.read_us();
+
+    wait_us(156-7-11);
+
+    it = t.read_us();
+    
+//pc_printf(ret1);
+//pc_printf("0    zt=");
+//pc_printf(  ch_hex_a(zt)  );
+//pc_printf(ret1);
+
+//pc_printf("156  at=");
+//pc_printf(  ch_hex_a( 156  - (at-zt) )  );
+//pc_printf(ret1);
+
+//pc_printf("260  bt=");
+//pc_printf(  ch_hex_a( 260  - (bt-zt) )  );
+//pc_printf(ret1);
+
+//pc_printf("364  ct=");
+//pc_printf(  ch_hex_a( 364  - (ct-zt) )  );
+//pc_printf(ret1);
+
+//pc_printf("468  dt=");
+//pc_printf(  ch_hex_a( 468  - (dt-zt) )  );
+//pc_printf(ret1);
+
+//pc_printf("572  et=");
+//pc_printf(  ch_hex_a( 572  - (et-zt) )  );
+//pc_printf(ret1);
+
+//pc_printf("677  ft=");
+//pc_printf(  ch_hex_a( 677  - (ft-zt) )  );
+//pc_printf(ret1);
+
+//pc_printf("781  gt=");
+//pc_printf(  ch_hex_a( 781  - (gt-zt) )  );
+//pc_printf(ret1);
+
+//pc_printf("885  ht=");
+//pc_printf(  ch_hex_a( 885  - (ht-zt) )  );
+//pc_printf(ret1);
+
+//pc_printf("1041 it=");
+//pc_printf(  ch_hex_a( 1041 - (it-zt) )  );
+//pc_printf(ret1);
+
+    //h=0; g=1; f=0; e=0; d=0; c=0; b=0; a=1;
+
+    bs=h*128+g*64+f*32+e*16+d*8+c*4+b*2+a;
+
+    //char str2[2]={ bs ,0};
+    //pc_printf("     ch=[");
+    //pc_printf(  str2  );
+    //pc_printf(ret1);
+
+    return(bs);
+}//pc_getc
+
+int main()
+{
+    RX.mode( PullUp );   //  内蔵プルアップを使う
+    
+    //タイマーの開始
+    t.start();
+    //pc.printf("Hello World!\r\n");
+    //t.stop();
+
+    char ch;
+    
+    while(1) {
+
+        t.reset();
+
+        ch = pc_getc();
+        
+        char str2[2]={ ch ,0};
+        pc_printf("-----ch=[");
+        pc_printf(  str2  );
+        pc_printf(ret1);
+
+
+        wait(1.0);
+    }//while
+}//main
+
+//容量削減
+void error(const char* format, ...){}