Projets S4 IUT de Cachan / Mbed 2 deprecated IonScan_DO_SPI

acquisition de la position du AS5311

Dependencies:   C12832 SWSPI mbed

Fork of IonScan_DO_SPI by Noël Esnault

main.cpp@0:c8c1409ea335, 2018-04-11 (annotated)

Committer:
Esnault
Date:
Wed Apr 11 14:53:34 2018 +0000
Revision:
0:c8c1409ea335
Version du 11/04/2018

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Esnault 0:c8c1409ea335 1 #include "mbed.h"
Esnault 0:c8c1409ea335 2 #include "C12832.h"
Esnault 0:c8c1409ea335 3 #include "SWSPI.h"
Esnault 0:c8c1409ea335 4 #include <cmath>
Esnault 0:c8c1409ea335 5
Esnault 0:c8c1409ea335 6 SWSPI spi(PC_4,PC_12,PA_13); // MOSI"bidon" / MISO /CLK
Esnault 0:c8c1409ea335 7
Esnault 0:c8c1409ea335 8 C12832 lcd(D11, D13, D12, D7, D10);
Esnault 0:c8c1409ea335 9
Esnault 0:c8c1409ea335 10 DigitalOut CS(PA_14);
Esnault 0:c8c1409ea335 11
Esnault 0:c8c1409ea335 12 DigitalIn DO(PC_12);
Esnault 0:c8c1409ea335 13
Esnault 0:c8c1409ea335 14 InterruptIn index(PA_15);
Esnault 0:c8c1409ea335 15
Esnault 0:c8c1409ea335 16 double cpt_fall=0;
Esnault 0:c8c1409ea335 17
Esnault 0:c8c1409ea335 18 float distance=0,cpt_rise=0,compteur_index=0;
Esnault 0:c8c1409ea335 19
Esnault 0:c8c1409ea335 20 short cpt=0;
Esnault 0:c8c1409ea335 21
Esnault 0:c8c1409ea335 22 long x=0,x1=0,pas,RAZ = 0,pos_finale=0, pos_initiale=0;
Esnault 0:c8c1409ea335 23
Esnault 0:c8c1409ea335 24
Esnault 0:c8c1409ea335 25
Esnault 0:c8c1409ea335 26 void pressed()
Esnault 0:c8c1409ea335 27 {
Esnault 0:c8c1409ea335 28 if (x >= 3000) {
Esnault 0:c8c1409ea335 29 cpt_rise++;
Esnault 0:c8c1409ea335 30 }
Esnault 0:c8c1409ea335 31 if (x <= 1000) {
Esnault 0:c8c1409ea335 32 cpt_rise--;
Esnault 0:c8c1409ea335 33 }
Esnault 0:c8c1409ea335 34
Esnault 0:c8c1409ea335 35 }
Esnault 0:c8c1409ea335 36
Esnault 0:c8c1409ea335 37 void released()
Esnault 0:c8c1409ea335 38 {
Esnault 0:c8c1409ea335 39 cpt_fall++;
Esnault 0:c8c1409ea335 40 }
Esnault 0:c8c1409ea335 41
Esnault 0:c8c1409ea335 42 int main ()
Esnault 0:c8c1409ea335 43 {
Esnault 0:c8c1409ea335 44 spi.format(18,3); //////////////////////////////////////
Esnault 0:c8c1409ea335 45 spi.frequency(100000); // Initialisation SPI software
Esnault 0:c8c1409ea335 46 CS=1;
Esnault 0:c8c1409ea335 47 lcd.cls();/////////////////////////////////////////////
Esnault 0:c8c1409ea335 48
Esnault 0:c8c1409ea335 49 wait_ms(100);///////////////////////////////////////////
Esnault 0:c8c1409ea335 50 CS=0;
Esnault 0:c8c1409ea335 51 wait_us(50);
Esnault 0:c8c1409ea335 52
Esnault 0:c8c1409ea335 53 pos_initiale=spi.write(0); //Determination pos_initialetion initiale
Esnault 0:c8c1409ea335 54
Esnault 0:c8c1409ea335 55 wait_us(50);
Esnault 0:c8c1409ea335 56 CS=1;
Esnault 0:c8c1409ea335 57 pos_initiale = pos_initiale>>5;/////////////////////////////////////////////
Esnault 0:c8c1409ea335 58
Esnault 0:c8c1409ea335 59 pos_finale=x-pos_initiale;
Esnault 0:c8c1409ea335 60
Esnault 0:c8c1409ea335 61 //pas = (abs(x-x1))%4095;
Esnault 0:c8c1409ea335 62 distance=((pos_finale*(0.000488)+(cpt_rise*2)));
Esnault 0:c8c1409ea335 63
Esnault 0:c8c1409ea335 64 while(1) {
Esnault 0:c8c1409ea335 65 pos_finale=x-pos_initiale;
Esnault 0:c8c1409ea335 66
Esnault 0:c8c1409ea335 67 index.fall(&pressed);
Esnault 0:c8c1409ea335 68 index.rise(&released);
Esnault 0:c8c1409ea335 69
Esnault 0:c8c1409ea335 70 wait_ms(100);
Esnault 0:c8c1409ea335 71 CS=0;
Esnault 0:c8c1409ea335 72 wait_us(50);
Esnault 0:c8c1409ea335 73
Esnault 0:c8c1409ea335 74 x1=x;
Esnault 0:c8c1409ea335 75 x=spi.write(0);
Esnault 0:c8c1409ea335 76
Esnault 0:c8c1409ea335 77 //pas = (abs(x-x1))%4095;
Esnault 0:c8c1409ea335 78 distance=((pos_finale*(0.000488)+(cpt_rise*2))); // Calcul de la distance parcouru depuis le 0 en mm
Esnault 0:c8c1409ea335 79
Esnault 0:c8c1409ea335 80 wait_us(50);
Esnault 0:c8c1409ea335 81 CS=1;
Esnault 0:c8c1409ea335 82 x = x>>5;
Esnault 0:c8c1409ea335 83
Esnault 0:c8c1409ea335 84 lcd.locate(0,3);
Esnault 0:c8c1409ea335 85 lcd.printf("DIST= %.5f",distance);
Esnault 0:c8c1409ea335 86 lcd.locate(0,14);
Esnault 0:c8c1409ea335 87 lcd.printf("POS= %5ld", x);
Esnault 0:c8c1409ea335 88
Esnault 0:c8c1409ea335 89 /*
Esnault 0:c8c1409ea335 90 lcd.locate(0,3);
Esnault 0:c8c1409ea335 91 lcd.printf("pos_initiale= %ld",pos_initiale);
Esnault 0:c8c1409ea335 92 lcd.locate(0,14);
Esnault 0:c8c1409ea335 93 lcd.printf("POS= %5ld", x);
Esnault 0:c8c1409ea335 94 */
Esnault 0:c8c1409ea335 95 }
Esnault 0:c8c1409ea335 96 }