Yeongsoo Kim / Mbed 2 deprecated Mecha_Timer

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Dependencies:   mbed

main.cpp@0:a94da558b5ac, 2020-12-09 (annotated)

Committer:
yeongsookim
Date:
Wed Dec 09 00:06:26 2020 +0000
Revision:
0:a94da558b5ac
Init commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yeongsookim 0:a94da558b5ac 1 #include "mbed.h"
yeongsookim 0:a94da558b5ac 2 Serial pc(USBTX, USBRX); // tx, rx
yeongsookim 0:a94da558b5ac 3 PwmOut mypwm(p24);
yeongsookim 0:a94da558b5ac 4 DigitalIn sensorIn(p23, PullUp);
yeongsookim 0:a94da558b5ac 5
yeongsookim 0:a94da558b5ac 6 DigitalOut myled(LED1);
yeongsookim 0:a94da558b5ac 7
yeongsookim 0:a94da558b5ac 8
yeongsookim 0:a94da558b5ac 9 //Interrupt is generated every 1ms and count is increased by 1
yeongsookim 0:a94da558b5ac 10 int flag_01ms=0;
yeongsookim 0:a94da558b5ac 11 int flag_1ms=0;
yeongsookim 0:a94da558b5ac 12 int flag_20ms=0;
yeongsookim 0:a94da558b5ac 13 void counter_100ns()
yeongsookim 0:a94da558b5ac 14 {
yeongsookim 0:a94da558b5ac 15 flag_01ms++;
yeongsookim 0:a94da558b5ac 16 flag_1ms++;
yeongsookim 0:a94da558b5ac 17 flag_20ms++;
yeongsookim 0:a94da558b5ac 18 }
yeongsookim 0:a94da558b5ac 19
yeongsookim 0:a94da558b5ac 20 int main()
yeongsookim 0:a94da558b5ac 21 {
yeongsookim 0:a94da558b5ac 22
yeongsookim 0:a94da558b5ac 23 wait(1);
yeongsookim 0:a94da558b5ac 24
yeongsookim 0:a94da558b5ac 25 //Set the 1ms thicker.
yeongsookim 0:a94da558b5ac 26 Ticker ticker_100ns;
yeongsookim 0:a94da558b5ac 27 ticker_100ns.attach(&counter_100ns,0.0001);
yeongsookim 0:a94da558b5ac 28
yeongsookim 0:a94da558b5ac 29 Timer time;
yeongsookim 0:a94da558b5ac 30 time.start();
yeongsookim 0:a94da558b5ac 31 float init_time = time.read();
yeongsookim 0:a94da558b5ac 32 pc.printf("init_time %.3f sec\n", init_time);
yeongsookim 0:a94da558b5ac 33 mypwm.period_us(5);
yeongsookim 0:a94da558b5ac 34 mypwm.pulsewidth_us(3);
yeongsookim 0:a94da558b5ac 35
yeongsookim 0:a94da558b5ac 36
yeongsookim 0:a94da558b5ac 37 float start_time=0.0;
yeongsookim 0:a94da558b5ac 38 float end_time=0.0;
yeongsookim 0:a94da558b5ac 39 int wait_5s = 10*1000*2;
yeongsookim 0:a94da558b5ac 40 int wait_count =0;
yeongsookim 0:a94da558b5ac 41 bool is_start=false;
yeongsookim 0:a94da558b5ac 42 bool is_end=false;
yeongsookim 0:a94da558b5ac 43 int up_count=0;
yeongsookim 0:a94da558b5ac 44
yeongsookim 0:a94da558b5ac 45 bool is_first_rising =false;
yeongsookim 0:a94da558b5ac 46 float first_rising_time=0.0;
yeongsookim 0:a94da558b5ac 47
yeongsookim 0:a94da558b5ac 48 while(1) {
yeongsookim 0:a94da558b5ac 49
yeongsookim 0:a94da558b5ac 50 if(flag_01ms>=1) {
yeongsookim 0:a94da558b5ac 51 flag_01ms=0;
yeongsookim 0:a94da558b5ac 52 if(is_start==false) {
yeongsookim 0:a94da558b5ac 53 if(sensorIn==0) {
yeongsookim 0:a94da558b5ac 54 up_count++;
yeongsookim 0:a94da558b5ac 55 if (is_first_rising == false) {
yeongsookim 0:a94da558b5ac 56 is_first_rising =true;
yeongsookim 0:a94da558b5ac 57 first_rising_time = time.read();
yeongsookim 0:a94da558b5ac 58 }
yeongsookim 0:a94da558b5ac 59 }
yeongsookim 0:a94da558b5ac 60 } else {
yeongsookim 0:a94da558b5ac 61 if(wait_count>wait_5s) {
yeongsookim 0:a94da558b5ac 62 if(sensorIn==0) {
yeongsookim 0:a94da558b5ac 63 up_count++;
yeongsookim 0:a94da558b5ac 64 if (is_first_rising == false) {
yeongsookim 0:a94da558b5ac 65 is_first_rising =true;
yeongsookim 0:a94da558b5ac 66 first_rising_time = time.read();
yeongsookim 0:a94da558b5ac 67 }
yeongsookim 0:a94da558b5ac 68 }
yeongsookim 0:a94da558b5ac 69 } else {
yeongsookim 0:a94da558b5ac 70 wait_count++;
yeongsookim 0:a94da558b5ac 71 }
yeongsookim 0:a94da558b5ac 72 }
yeongsookim 0:a94da558b5ac 73 }
yeongsookim 0:a94da558b5ac 74 if(flag_1ms>=10) {
yeongsookim 0:a94da558b5ac 75 flag_1ms=0;
yeongsookim 0:a94da558b5ac 76 if(up_count>=5 && is_start==false) {
yeongsookim 0:a94da558b5ac 77 start_time=first_rising_time;
yeongsookim 0:a94da558b5ac 78 pc.printf("start time %.5f sec %.5f\n", start_time-init_time);
yeongsookim 0:a94da558b5ac 79 wait_count=0;
yeongsookim 0:a94da558b5ac 80 is_first_rising =false;
yeongsookim 0:a94da558b5ac 81 first_rising_time = 0.0;
yeongsookim 0:a94da558b5ac 82 up_count=0;
yeongsookim 0:a94da558b5ac 83 is_start = true;
yeongsookim 0:a94da558b5ac 84 } else if(up_count>=5 && is_start==true && is_end==false) {
yeongsookim 0:a94da558b5ac 85 end_time=first_rising_time;
yeongsookim 0:a94da558b5ac 86
yeongsookim 0:a94da558b5ac 87 pc.printf("end time %.5f sec %.5f \n", end_time-init_time);
yeongsookim 0:a94da558b5ac 88 pc.printf("time gap %.5f sec \n", end_time-start_time);
yeongsookim 0:a94da558b5ac 89 is_end=true;
yeongsookim 0:a94da558b5ac 90 }
yeongsookim 0:a94da558b5ac 91
yeongsookim 0:a94da558b5ac 92 }
yeongsookim 0:a94da558b5ac 93 if(flag_20ms>=20*10) {
yeongsookim 0:a94da558b5ac 94 flag_20ms=0;
yeongsookim 0:a94da558b5ac 95 is_first_rising = false;
yeongsookim 0:a94da558b5ac 96 first_rising_time=0.0;
yeongsookim 0:a94da558b5ac 97 up_count=0;
yeongsookim 0:a94da558b5ac 98 }
yeongsookim 0:a94da558b5ac 99 myled = sensorIn;
yeongsookim 0:a94da558b5ac 100 }
yeongsookim 0:a94da558b5ac 101 }