
stm32l010 timer test 1r
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
main.cpp | Show annotated file Show diff for this revision Revisions of this file |
mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
--- /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, ...){}
--- /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