Vincent Persad
/
mbed_blinky
Iniversity work
Diff: main.cpp
- Revision:
- 1:0630912bb400
- Parent:
- 0:ca687da7d225
- Child:
- 2:8d0e48d38611
diff -r ca687da7d225 -r 0630912bb400 main.cpp --- a/main.cpp Wed Aug 30 13:28:26 2017 +0000 +++ b/main.cpp Fri Sep 01 20:53:36 2017 +0000 @@ -1,19 +1,110 @@ -#include "mbed.h" - -DigitalOut myled(LED1); Serial pc(USBTX, USBRX); -//Serial uart(p13,p14); SPI spiTest(p5, p6, p7); DigitalOut cs(p8); +//Serial pc(USBTX,USBRX); +PwmOut led1(LED1); +PwmOut led2(LED2); +PwmOut led3(LED3); + + +MMA8452 acc(p9, p10, 100000); +void calculateAngle(); + int main() { - //I2C + + while(1) { + calculateAngle(); + wait(1); + } +} + +void calculateAngle(){ + double x, y, z; + float val = 180.0 / 3.1416; + acc.readXYZGravity(&x,&y,&z); + + led1 = abs(x); + led2 = abs(y); + led3 = abs(z); + float amplitude =sqrt(pow(x,2)+pow(y,2)+pow(z,2)); + float crossProductVector = y-x; + float t = asin(crossProductVector/amplitude)*val; //was z before + float e = 0.5*acos(1-((pow(x,2)+pow(y,2))/((pow(x,2)+pow(y,2)+pow(z,2)))))*val; + pc.printf("x:%lf y:%lf z:%lf\r\n",x,y,z); + pc.printf("angle: %lf autre: %lf \r\n",t,e); +} +/* +void display(int number); + +int main() { + //https://developer.mbed.org/handbook/SerialPC + //https://developer.mbed.org/handbook/mbed-NXP-LPC1768-Getting-Started + //pc.printf("Echoes back to the screen anything you type\n"); + int nombre = 0; + cs = 1; + spiTest.frequency(250000); + cs = 0; + spiTest.write(0x81); + //int t = spiTest.write(nombre); + //pc.printf("Nombre = %X\r\n", t); + cs = 1; while(1) { - + //uart.printf("%c",pc.getc()); + wait(0.7); + nombre++; + display(nombre); + pc.printf("Nombre = %X\r\n", nombre); + if(nombre == 15){ + return(0); + } } } +void display(int number){ + char c[4]; + //Explication de la fonction sprintf https://www.tutorialspoint.com/c_standard_library/c_function_sprintf.htm + int test = sprintf(c,"%u", number); + //sprintf(c,"%ld", number); + cs = 0; + spiTest.write(0x76); + cs = 1; + pc.printf("c = %u\r\n", c[3] == '\0'); + pc.printf("test = %d\r\n", test); + + switch(test) { + case 1: + cs = 0; + spiTest.write(0x7E); + cs = 1; + cs = 0; + spiTest.write(c[0]); + cs = 1; + break; + case 2: + cs = 0; + spiTest.write(0x7D|c[0]); + cs = 1; + cs = 0; + spiTest.write(0x7E|c[1]); + cs = 1; + break; + case 3: + break; + } + + int n = sizeof(c)/sizeof(c[0]); + pc.printf("n = %i\r\n", n); + /*for (int i=4; i>=0; i--){ + cs = 0; + spiTest.write(c[i]); + cs = 1; + }*/ + /*spiTest.write(c); + ; + spiTest.write(c[0]); +}*/ -/* +/* Ignore cette partie c'Est le lab int main() { //https://developer.mbed.org/handbook/SerialPC //https://developer.mbed.org/handbook/mbed-NXP-LPC1768-Getting-Started