Revision 0:f0f1f2affd64, committed 2021-05-15

Comitter:

caa45040

Date:

Sat May 15 04:52:37 2021 +0000

Commit message:

stm32l010 timer_test_010 1

Changed in this revision

diff -r 000000000000 -r f0f1f2affd64 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sat May 15 04:52:37 2021 +0000
@@ -0,0 +1,186 @@
+//timer
+
+#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)
+ 
+//1000の割り算 180000までは、ほぼ正しい　ミリ秒を切り捨てす為に精度は、不要
+#define DVI1000(n3)     (((n3>>3)*4195)>>19)
+
+//6の割り算 主に18まで
+#define DVI6(n6)        ((n6*683)>>12)
+ 
+//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
+
+//仮想シリアルの出力ポート
+//DigitalOut TX(PA_9);
+DigitalOut TX(PA_2);
+
+//DigitalOut myled(D13);    //767
+DigitalOut myled(PA_4);
+
+//タイマーの定義
+Timer t;
+
+//d int q_st; //スタートタイム debug
+//d int q_et; //エンドタイム   debug
+
+//仮想シリアルへの一文字出力 9600bps
+int pc_putc(char ch) {
+
+    TX=1;
+    
+//d    q_st = t.read_us(); //debug
+    
+    TX=0;//START
+    wait_us(UART_DELAY);
+    
+//d    q_et = t.read_us(); //debug
+
+    for(int ii=0;ii<8;ii++){
+        TX=(ch>>ii)&1;
+        wait_us(UART_DELAY);
+    }; //for
+
+    TX=1;//Stop
+    wait_us(UART_DELAY);
+
+//d    q_et = t.read_us(); //debug 引いた数が0で1041ufなら正解
+         
+    return(0);
+    
+} //pc_putc
+
+//文字列の表示
+int pc_printf(char *str1) {
+
+    //文字の中身がゼロか
+    while(*str1){
+            
+        //一文字出力
+        pc_putc(*str1 ++);
+                        
+    } //while
+
+    //戻り値
+    return(0);
+}//pc_printf
+
+//10文字分のバッファー
+char str10[10];
+
+//d int l_num,aaa,bbb,ccc,qqq; //debug
+//d char ch_hex_a_b[10];   //debug
+
+int main() {
+
+    //初期化
+    TX=1;wait_ms(2);    //文字分のウエート
+    pc_printf("\r\n");  //ゴミの吐き出し
+        
+//d    pc_printf("\r\n");
+//d    pc_printf("Hello World!\r\n");
+    
+    //タイマーの開始
+    t.start();
+    //pc.printf("Hello World!\r\n");
+    //t.stop();
+
+
+//d    //dbbug
+//d    for(int ll=0;ll<40;ll++){
+//d        pc_putc('A');
+//d        //q_st = t.read_us(); //debug
+//d        //wait_us(104);
+//d        //q_et = t.read_us(); //debug
+//d        l_num = (q_et-q_st)/10;
+//d        bbb=DVI10(l_num);
+//d        ccc=l_num-(bbb*10);
+//d        l_num=bbb;
+//d        aaa=DVI10(l_num);
+//d        bbb=l_num-(aaa*10);
+//d        ch_hex_a_b[0] = '0' + aaa;
+//d        ch_hex_a_b[1] = '0' + bbb;
+//d        ch_hex_a_b[2] = '0' + ccc;
+//d        ch_hex_a_b[3] = 'X';
+//d        ch_hex_a_b[4] = 'u';
+//d        ch_hex_a_b[5] = 'S';
+//d        ch_hex_a_b[6] = 0;
+//d        pc_printf(ch_hex_a_b);
+//d        pc_printf("\r\n");
+//d        wait_ms(1000);
+//d    }
+//d    pc_printf("\r\n");
+
+
+    //初期値の表示
+    pc_printf("0m00s\r\n");
+
+    //最初のウエート
+    wait_ms(990);
+
+    int a,b,c,d,e; //分秒
+    int a_bk=0;    //秒のバックアップ
+
+    //無限ループ
+    while(1) { 
+        //pc.printf("The time taken was %f seconds\r\n", t.read()); //767
+        //pc.printf("The time taken was %d seconds\r\n",  DVI1000( t.read_ms() )  ); //767
+        
+        //秒が変わるまで待つ
+        while(1) {
+            a = DVI1000( t.read_ms() ); //秒
+            if( a != a_bk) {break;}
+        }//while
+        a_bk=a; //値を保存
+                
+        //1秒毎のブリンク
+        myled = 1;
+        wait_ms(10);
+        myled = 0;
+        
+        //秒から分の分離
+        b = DVI10( a ); //1シフト 123秒の時は、12が戻る
+        c = a - (b*10); //1の桁 123秒の時は、3が戻る
+        d = DVI6( b ); //分 12の時は、3分
+        e = b - ( d * 6 ); // 秒の10の桁　12- 3分*6 = 0
+        //pc.printf("%d %t %d %t %d \r\n",  d , e , c  ); //767
+        
+        //分秒の表示
+        str10[0] = ('0'+d);
+        str10[1] = ('m');
+        str10[2] = ('0'+e);
+        str10[3] = ('0'+c);
+        str10[4] = ('s');
+        str10[5] = ('\r');
+        str10[6] = ('\n'); 
+        str10[7] = (0); 
+        pc_printf(str10);
+        
+        //3分経ったらループを停止してブリンク
+        if( a == 180 /*3分*/ ) {
+            while(1){
+                myled = 1;
+                wait_ms(500);
+                myled = 0;
+                wait_ms(500);
+            }//while
+        }//if
+         
+        //pc.printf("The time taken was %d seconds\r\n", t.read_ms()); //767
+        //pc.printf("The time taken was %d seconds\r\n", t.read_us()); //767
+        
+        //約1秒を待つ
+        wait_ms(980);
+    } //while
+
+} //main
+
+//容量削減
+void error(const char* format, ...){}

diff -r 000000000000 -r f0f1f2affd64 mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Sat May 15 04:52:37 2021 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/mbed_official/code/mbed/builds/2e9cc70d1897
\ No newline at end of file