![](/media/cache/group/default_image.jpg.50x50_q85.jpg)
acquisition de la position du AS5311
Dependencies: C12832 SWSPI mbed
Fork of IonScan_DO_SPI by
Diff: main.cpp
- Revision:
- 0:c8c1409ea335
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Wed Apr 11 14:53:34 2018 +0000 @@ -0,0 +1,96 @@ +#include "mbed.h" +#include "C12832.h" +#include "SWSPI.h" +#include <cmath> + +SWSPI spi(PC_4,PC_12,PA_13); // MOSI"bidon" / MISO /CLK + +C12832 lcd(D11, D13, D12, D7, D10); + +DigitalOut CS(PA_14); + +DigitalIn DO(PC_12); + +InterruptIn index(PA_15); + +double cpt_fall=0; + +float distance=0,cpt_rise=0,compteur_index=0; + +short cpt=0; + +long x=0,x1=0,pas,RAZ = 0,pos_finale=0, pos_initiale=0; + + + +void pressed() +{ + if (x >= 3000) { + cpt_rise++; + } + if (x <= 1000) { + cpt_rise--; + } + +} + +void released() +{ + cpt_fall++; +} + +int main () +{ + spi.format(18,3); ////////////////////////////////////// + spi.frequency(100000); // Initialisation SPI software + CS=1; + lcd.cls();///////////////////////////////////////////// + + wait_ms(100);/////////////////////////////////////////// + CS=0; + wait_us(50); + + pos_initiale=spi.write(0); //Determination pos_initialetion initiale + + wait_us(50); + CS=1; + pos_initiale = pos_initiale>>5;///////////////////////////////////////////// + + pos_finale=x-pos_initiale; + + //pas = (abs(x-x1))%4095; + distance=((pos_finale*(0.000488)+(cpt_rise*2))); + + while(1) { + pos_finale=x-pos_initiale; + + index.fall(&pressed); + index.rise(&released); + + wait_ms(100); + CS=0; + wait_us(50); + + x1=x; + x=spi.write(0); + + //pas = (abs(x-x1))%4095; + distance=((pos_finale*(0.000488)+(cpt_rise*2))); // Calcul de la distance parcouru depuis le 0 en mm + + wait_us(50); + CS=1; + x = x>>5; + + lcd.locate(0,3); + lcd.printf("DIST= %.5f",distance); + lcd.locate(0,14); + lcd.printf("POS= %5ld", x); + + /* + lcd.locate(0,3); + lcd.printf("pos_initiale= %ld",pos_initiale); + lcd.locate(0,14); + lcd.printf("POS= %5ld", x); + */ + } +} \ No newline at end of file