Diff: hcsr04.cpp

Revision:

11:ac0ff76a6deb

Parent:

10:338191178cbf

--- a/hcsr04.cpp	Mon May 18 00:44:59 2015 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,105 +0,0 @@
-/* Copyright (c) 2013 Prabhu Desai
- * pdtechworld@gmail.com
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
- * and associated documentation files (the "Software"), to deal in the Software without restriction,
- * including without limitation the rights to use, copy, modify, merge, publish, distribute,
- * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all copies or
- * substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
- * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-
-#include "hcsr04.h"
-
-
-HCSR04::HCSR04(PinName TrigPin,PinName EchoPin):
-    trigger(TrigPin), echo(EchoPin), maxpulse(-1)
-{
-    pulsetime.stop();
-    pulsetime.reset();
-    echo.rise(this,&HCSR04::isr_rise);
-    echo.fall(this,&HCSR04::isr_fall);
-    trigger=0;
-}
-
-HCSR04::~HCSR04()
-{
-}
-
-void HCSR04::isr_rise(void)
-{
-    pulsetime.start();
-    pulsetime.reset();
-}
-void HCSR04::start(void)
-{
-    pulsedur = -1;
-    
-    trigger=1;
-    wait_us(10);
-    trigger=0;
-}
-
-void HCSR04::isr_fall(void)
-{
-    pulsetime.stop();
-    pulsedur = pulsetime.read_us();
-    if (pulsedur > maxpulse && pulsedur < kBogusPulse)
-        maxpulse = pulsedur;
-}
-
-void HCSR04::rise (void (*fptr)(void))
-{
-    echo.rise(fptr);
-}
-void HCSR04::fall (void (*fptr)(void))
-{
-    echo.fall(fptr);
-}
-
-double HCSR04::get_dist_cm()
-{
-    return pulsedur * kMicrosecondsToCentimeters;
-}
-double HCSR04::get_max_dist_cm()
-{
-    return maxpulse * kMicrosecondsToCentimeters;
-}
-int HCSR04::get_pulse_us()
-{
-    return pulsedur;
-}
-
-
-
-/*******************************************************
-   Here is a sample code usage
-********************************************************* 
-#include "hcsr04.h"
-HCSR04  usensor(p25,p6);
-int main()
-{
-    unsigned char count=0;
-    while(1) {
-        usensor.start();
-        wait_ms(500); 
-        dist=usensor.get_dist_cm();
-        lcd.cls();
-        lcd.locate(0,0);
-        lcd.printf("cm:%ld",dist );
- 
-        count++;
-        lcd.locate(0,1);
-        lcd.printf("Distance =%d",count);
-        
-    }
-*/
\ No newline at end of file