dd

Dependencies:   C12832 mbed

Revision:
0:d32c1bd327b1
diff -r 000000000000 -r d32c1bd327b1 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Apr 08 08:35:32 2015 +0000
@@ -0,0 +1,194 @@
+#include "mbed.h"
+#include "MSCFileSystem.h"
+#include "C12832.h"
+
+MSCFileSystem fs("usb"); 
+
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+DigitalOut led4(LED4);
+
+DigitalIn  bouton(p14); // pour pouvoir controler la fin de l'enregistrement
+C12832 lcd(p5, p7, p6, p8, p11); 
+I2C i2c(p28, p27);//
+
+Timer  timer1; // un Timer pour mesurer le temps
+
+unsigned int addr = 0xEA;// I2C ADRESS from datashee
+
+char  data[2]; 
+unsigned  int vbrut, offset_v;
+float vitesse;
+unsigned long tk1,tk2; // des variables pour stocker les temps de mesure
+int main() 
+{ 
+
+     
+      
+     i2c.frequency (100000) ;//void frequency(int hz);
+   
+     lcd.cls();// effacer LCD
+  
+     
+    
+    data[0] = 0x01; // Send "read data" command to sensor 
+    i2c.write(addr, data, 1); // Send command string
+    wait_us(400);//attendre 100µS avant de relancer
+    i2c.read(addr, data, 2);
+    offset_v=(0xff00 & ( ((unsigned)data[1]) << 8)) + ((unsigned char)data[0]&0xff);      
+       
+    led1=0;   
+    led2=0;
+               
+    FILE *FDat = fopen("/usb/FileTtest1", "w");//ajouter un nouveau fichier et écraser l'ancien
+    led1=1;
+    if(FDat==NULL) { 
+        led4=1;
+       // while(1);
+    }    
+    tk1=0;
+    while(bouton==0) {
+            timer1.reset();
+            timer1.start();
+            
+            data[0] = 0x01; // Send "register number" command to sensor 
+            i2c.write(addr, data, 1); // Send command string
+            wait_us(400);//attendre 400µS avant de relancer
+            i2c.read(addr, data, 2);
+           
+             
+            vbrut =  (0xff00 & ( ((unsigned)data[1]) << 8)) + ((unsigned char)data[0]&0xff);
+            vitesse = sqrt((float)(vbrut-offset_v)*2*3.6/1.225);
+            
+            data[0] = 0x01; // Send "register number" command to sensor 
+            wait_us(400);
+            i2c.write(addr, data, 1); // Send command string
+            wait_us(400);//attendre 100µS avant de relancer
+            i2c.read(addr, data, 2);
+            
+            tk1=timer1.read_us();
+           
+            fprintf(FDat,"%lu  %lu  %f  %u\r\n",tk1,tk2,vitesse,vbrut);
+          
+            tk2=timer1.read_us(); // je mesure le temps d'écriture de la fonction fprintf
+            led2=!led2;
+            wait(0.1);
+            //------------------------affichage de l information de V4       
+            lcd.locate(1,15);
+            lcd. printf("sp = %f", vitesse);
+            wait(0.4);    
+    }
+    fclose(FDat);
+    led1=0;
+    led2=0;
+}
+
+/*les résultats de  test de programme sont :
+
+2330  2381  6.857143  1511 ******************************************************
+2329  2381  7.273098  1512
+2330  2381  8.040712  1514
+2330  4597  6.414270  1510           avant d'allumer les extracteur 
+2329  2381  7.273098  1512
+2329  2381  8.398251  1515
+2330  2381  5.938460  1509
+2330  2382  6.857143  1511 *************************************************
+2330  2382  11.876920  1527
+2329  2383  10.842094  1523
+2330  2382  9.697464  1519
+2330  2382  9.995917  1520
+2329  2381  8.398251   1515
+2329  2380  11.371285  1525
+2331  2382  12.828540  1531
+2333  2384  11.371285  1525
+2329  2386  9.071147   1517              demmarage de l'extracteur , mais j'ai ete pas stable 
+2329  2381  13.278800  1533
+2329  2382  15.333037  1543
+2329  2382  12.361890  1529
+2330  2382  13.498300  1534
+2329  5145  11.876920  1527
+2330  2382  10.842094  1523
+2329  2383  8.040712  1514
+2329  2381  12.597376  1530
+2329  2382  12.121831  1528
+2331  2382  13.926923  1536
+2330  2383  14.746843  1540
+2329  2383  11.876920  1527
+2329  2382  13.926923  1536
+2329  2382  15.711688  1545
+2330  2382  11.109841  1524
+2330  2383  13.926923  1536
+2331  2383  11.626851  1526
+2330  2383  12.121831  1528
+2330  2383  13.278800  1533
+2329  2383  10.285714  1521
+2329  2382  12.121831  1528
+2329  2382  10.285714  1521
+2330  4646  12.597376  1530
+2330  2383  12.828540  1531
+2330  2383  13.714286  1535
+2330  2383  10.567567  1522
+2329  2383  14.546197  1539
+2329  2382  11.626851  1526
+2329  2382  14.342743  1538
+2330  2382  14.342743  1538
+2329  2383  14.944797  1541
+2329  2382  13.714286  1535
+2330  2382  13.055611  1532
+2331  2383  11.876920  1527
+2330  2384  11.876920  1527
+2329  2383  12.828540  1531
+2329  2382  12.828540  1531
+2329  2382  9.697464  1519
+2330  2381  9.389529  1518
+2329  4793  7.666519  1513
+2331  2381  5.938460  1509
+2329  2382  4.848732  1507
+2329  2381  10.285714  1521
+2330  2382  9.071147  1517
+2330  2381  11.371285  1525
+2329  2383  9.389529  1518
+2329  2381  10.285714  1521
+2329  2382  11.626851  1526
+2329  2382  14.136362  1537
+2329  2382  13.055611  1532
+2329  2382  14.136362  1537
+2329  2382  14.546197  1539
+2329  2382  14.546197  1539
+2330  2382  13.055611  1532
+2329  2383  10.285714  1521
+2329  2382  11.626851  1526
+2330  2382  9.071147  1517
+2330  4922  11.109841  1524
+2329  2383  10.842094  1523
+2330  2382  12.597376  1530
+2329  2383  7.273098  1512
+2329  2381  7.273098  1512
+2329  2381  8.040712  1514
+2331  2381  8.398251  1515
+2331  2382  8.398251  1515
+2330  2382  9.697464  1519
+2329  2382  8.741177  1516
+2330  2381  9.697464  1519
+2330  2381  11.876920  1527
+2331  2383  15.523518  1544*************************************************************************************************
+2329  2384  15.523518  1544
+2330  2382  15.140162  1542
+2329  2383  13.926923  1536
+2331  2382  14.944797  1541
+2330  2384  16.081425  1547
+2329  5093  15.897632  1546
+2331  2382  15.333037  1543      dans cette partie j'ai pas bougé le tube de pitot
+2330  2383  16.796501  1551
+2332  2383  16.796501  1551
+2330  2384  16.442850  1549
+2329  2383  17.482353  1555
+2330  2382  15.523518  1544
+2329  2383  16.620617  1550
+2329  2382  15.711688  1545
+2330  2382  14.944797  1541
+2329  2383  15.333037  1543
+2329  2382  16.263142  1548
+2330  2382  16.796501  1551****************************************************************************************************
+
+*/