yuto kawamura / Mbed 2 deprecated MR2_n_1_class

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Dependencies:   mbed

hcsr04/hcsr04.cpp@6:75cfa1a66382, 2019-04-27 (annotated)

Committer:
yuto17320508
Date:
Sat Apr 27 11:22:00 2019 +0000
Revision:
6:75cfa1a66382
Parent:
0:111abd91b0cb 
l

Who changed what in which revision?

UserRevisionLine numberNew contents of line
eri 0:111abd91b0cb 1 #include "hcsr04.h"
eri 0:111abd91b0cb 2
eri 0:111abd91b0cb 3 #define v_o 343
eri 0:111abd91b0cb 4
eri 0:111abd91b0cb 5 HCSR04::HCSR04(PinName TrigPin,PinName EchoPin):
eri 0:111abd91b0cb 6 trigger(TrigPin), echo(EchoPin)
eri 0:111abd91b0cb 7 {
eri 0:111abd91b0cb 8 pulsetime.stop();
eri 0:111abd91b0cb 9 pulsetime.reset();
eri 0:111abd91b0cb 10 echo.rise(this,&HCSR04::isr_rise);
eri 0:111abd91b0cb 11 echo.fall(this,&HCSR04::isr_fall);
eri 0:111abd91b0cb 12 trigger=0;
eri 0:111abd91b0cb 13 }
eri 0:111abd91b0cb 14
eri 0:111abd91b0cb 15 HCSR04::~HCSR04()
eri 0:111abd91b0cb 16 {
eri 0:111abd91b0cb 17 }
eri 0:111abd91b0cb 18
eri 0:111abd91b0cb 19 void HCSR04::isr_rise(void)
eri 0:111abd91b0cb 20 {
eri 0:111abd91b0cb 21 pulsetime.start();
eri 0:111abd91b0cb 22 }
eri 0:111abd91b0cb 23 void HCSR04::start(void)
eri 0:111abd91b0cb 24 {
eri 0:111abd91b0cb 25 trigger=1;
eri 0:111abd91b0cb 26 wait_us(10);
eri 0:111abd91b0cb 27 trigger=0;
eri 0:111abd91b0cb 28 }
eri 0:111abd91b0cb 29
eri 0:111abd91b0cb 30 void HCSR04::isr_fall(void)
eri 0:111abd91b0cb 31 {
eri 0:111abd91b0cb 32 pulsetime.stop();
eri 0:111abd91b0cb 33 pulsedur = pulsetime.read_us();
eri 0:111abd91b0cb 34 distance= (pulsedur*v_o)/20000;
eri 0:111abd91b0cb 35 pulsetime.reset();
eri 0:111abd91b0cb 36 }
eri 0:111abd91b0cb 37
eri 0:111abd91b0cb 38 void HCSR04::rise (void (*fptr)(void))
eri 0:111abd91b0cb 39 {
eri 0:111abd91b0cb 40 echo.rise(fptr);
eri 0:111abd91b0cb 41 }
eri 0:111abd91b0cb 42 void HCSR04::fall (void (*fptr)(void))
eri 0:111abd91b0cb 43 {
eri 0:111abd91b0cb 44 echo.fall(fptr);
eri 0:111abd91b0cb 45 }
eri 0:111abd91b0cb 46
eri 0:111abd91b0cb 47 float HCSR04::get_dist_cm()
eri 0:111abd91b0cb 48 {
eri 0:111abd91b0cb 49 return distance;
eri 0:111abd91b0cb 50 }
eri 0:111abd91b0cb 51 float HCSR04::get_pulse_us()
eri 0:111abd91b0cb 52 {
eri 0:111abd91b0cb 53 return pulsedur;
eri 0:111abd91b0cb 54 }