Diff: main.cpp

Revision:

2:15f2d7d650bb

Parent:

1:f4088d23f670

--- a/main.cpp	Tue Jul 21 08:22:46 2015 +0000
+++ b/main.cpp	Sun Nov 22 20:11:11 2020 +0000
@@ -1,94 +1,35 @@
-/*   Interrupt, timer and ticker example on LPC1768 
-*
-*    @author: Baser Kandehir 
-*    @date: July 9, 2015
-*    @license: MIT license
-*     
-*   Copyright (c) 2015, Baser Kandehir, baser.kandehir@ieee.metu.edu.tr
-*
-*   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.
-*
-*    @description of the program: 
-*
-*    This is an example program that shows how to use timer, ticker and interrupts. 
-*    It uses LPC1768 board leds and a button to show how interrupts, timers and tickers 
-*    are implemented to toggle leds. 
-*    A ticker is an interrupt service routine which calls a function at periodic time intervals.
-*    There are two tickers in the program. First ticker calls the toggle_led1 function every 100 ms
-*    and second ticker calls the toggle_led2 function every 500 ms. A button is connected to show
-*    how external interrupts work on the mbed LPC1768. Whenever user pushes the button, it pulls
-*    down the pin 18 to 0V and external interrupt occurs at the falling edge of p18. Whenever an external
-*    interrupt occurs, it calls the led3_debounced function to toggle led3. Also a timer is used to debounce 
-*    the button by counting 20 ms. Debounce is required for buttons in order to prevent false readings. 
-*     
-*    @connections: Pull up button with 10k resistor is connected to pin 18.   
-*     
-*/
 
 #include "mbed.h"
-
-Ticker toggler1;            // periodic interrupt routines
-Ticker toggler2;
-Timer debounce;             // define debounce timer
-InterruptIn button(p18);    // hardware interrupt on button - pin 18
-
-/* IMPORTANT NOTE: any digital input can be an interrupt except pin 19 and pin 20 */
-
-/* Interesting way of initialize all the 4 leds on the LPC1768 to an array named leds[]. */
-DigitalOut leds[] = {(LED1), (LED2), (LED3), (LED4)};
-
-/* Function Prototypes */
-void toggle_led1();
-void toggle_led2();
-void led3_debounced();
+#include "DS1820.h"
+ 
+DS1820  ds1820(D9); 
+Serial pc(USBTX,USBRX);
+ 
+float sonde_f = 0;
 
 int main() 
-{ 
-    /* Leds are initially OFF */
-    for(int i=0; i<4 ;i++)
-        leds[i]=0;            
-   
-    /* Start debounce timer */
-    debounce.start();
-    
-    /* Attach functions to periodic interrupts */
-    toggler1.attach(&toggle_led1,0.1);     // toggles led1 every 100 ms
-    toggler2.attach(&toggle_led2,0.5);     // toggles led2 every 500 ms
-    
-    /* Call toggle_led3 falling edge of the button interrupt */
-    button.fall(&led3_debounced);  
-    while(1) 
-    {
+{
+
+//------DS18B20------//
+    while (1){
+    if(ds1820.begin()) {
+        ds1820.startConversion();    
+        ThisThread::sleep_for(1000);  
+        sonde_f = ds1820.read();
+        pc.printf("%f", sonde_f);
+    }
+    else pc.printf("DS18B20 not found");
+    }
+    /*
+    if(ds1820.begin()) { // si bus OneWire prêt (connexion entre maître et esclave)
+        while(1) {
             
-    }
-}
-
-void toggle_led1() {leds[0] = !leds[0];}
-void toggle_led2() {leds[1] = !leds[1];}
-
-// whenever user pushes the button, led3 toggles.
-// button is debounced by waiting at least 20 ms.
-void led3_debounced()
-{
-    if(debounce.read_ms()>20)      // only allow toggle after 20 ms
-    {
-        leds[2] = !leds[2];
-        debounce.reset();          // restart timer after toggle    
-    }         
-}
+            wait_us(10000000);
+            ds1820.startConversion();    
+            ThisThread::sleep_for(1000);  
+            printf("T = %4.2f\r\n", ds1820.read()); // renvoi temp dans le format "....,.." avec 0.0625 de résolution
+        }
+    } else
+        pc.printf("Error DS1820 : not found.\r\n");
+*/
+}
\ No newline at end of file