APP Team
/
projet_accel
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Revision 0:1e7ffdb6d1db, committed 2014-03-20
- Comitter:
- trixrabbit
- Date:
- Thu Mar 20 13:16:01 2014 +0000
- Commit message:
- 20 mars cours de projet
Changed in this revision
diff -r 000000000000 -r 1e7ffdb6d1db collector.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/collector.cpp Thu Mar 20 13:16:01 2014 +0000
@@ -0,0 +1,37 @@
+#include "main.h"
+
+DigitalIn bouton(p7);
+int x,y,z,c;
+bool release;
+std::vector<int> x_array;
+std::vector<int> y_array;
+std::vector<int> z_array;
+
+Serial pc(USBTX, USBRX); // PC serial communication
+
+void collector_thread(void const *args)
+{
+ while(1)
+ {
+ if(bouton)
+ {
+
+ release = true;
+ x_array[c] = getAccelValue(OUT_X_MSB);
+ y_array[c]= getAccelValue(OUT_Y_MSB);
+ z_array[c]= getAccelValue(OUT_Z_MSB);
+ c++;
+ }
+ else{
+ if(release == true)
+ {
+
+ pc.printf("bouton release");
+
+ pc.printf("d% ", x_array[0]);
+ release = false;
+ c = 0;
+ }
+ }
+ }
+}
diff -r 000000000000 -r 1e7ffdb6d1db main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Thu Mar 20 13:16:01 2014 +0000
@@ -0,0 +1,102 @@
+#include "main.h"
+
+DigitalOut cs(p14); // Digital output used for the ship select control.
+DigitalOut myled(LED1); //LED
+SPI spi(p11, p12, p13); // SPI port (mosi, miso, sclk)
+I2C i2c(p9, p10); // I2C port (sda, scl)
+//Serial pc(USBTX, USBRX); // PC serial communication
+
+void WriteToRegister(int address, int startingRegister, int data2Write)
+{
+ char data[2];
+ data[0] = startingRegister;
+ data[1] = data2Write;
+
+ i2c.write(address, data, 2);
+}
+
+int ReadRegister(int address, int startingRegister)
+{
+ char content[1];
+ char reg[1];
+ reg[0] = startingRegister;
+
+ i2c.write(address, reg, 1, true);
+ i2c.read(address, content, 1);
+
+ return content[0];
+}
+
+char i2c_read_reg(char address) //fonction qui lit les valeurs des registres
+{
+ // Read from selected register adress
+ i2c.start();
+ i2c.write(MMA8452_WRITE_ADDRESS);
+ i2c.write(address);
+ i2c.start();
+ i2c.write(MMA8452_READ_ADDRESS);
+ char data = i2c.read(0);
+ i2c.stop();
+
+ // return the data readed
+ return data;
+}
+
+bool initAccel() //fonction qui initialise l'accelerometre avec i2c
+{
+ // Start I2C communication
+ char data = i2c_read_reg(WHO_AM_I);
+ if(data != 0x2A)
+ {
+ return false;
+ }
+
+
+
+// Put accelerometer in active mode at 6.25Hz
+ WriteToRegister(MMA8452_WRITE_ADDRESS, CTRL_REG1, 0x31);
+
+ // Put accelerometer in standby mode at 6.25Hz
+ WriteToRegister(MMA8452_WRITE_ADDRESS, CTRL_REG1, 0x30);
+
+ // Set accelerometer in 4g range
+ WriteToRegister(MMA8452_WRITE_ADDRESS, XYZ_DATA_CFG, 0x1);
+
+ // Put accelerometer in active mode at 6.25Hz
+ WriteToRegister(MMA8452_WRITE_ADDRESS, CTRL_REG1, 0x31);
+
+
+
+ return true;
+}
+
+
+
+unsigned short getAccelValue(char MSB_addr) //fonction qui lit les registres de données de l'accelerometre
+{
+ return i2c_read_reg(MSB_addr); // Read MSB data from MSB register
+}
+
+
+
+int main()
+{
+ std::vector<int> x_array;
+// int i = 0;
+ Thread thread1(collector_thread);
+
+
+ //appelle des fonctions d'initialisations
+ initAccel(); //accelerometre
+
+
+
+ myled = 0;
+
+ while(1)
+ {
+ wait_ms(10);
+
+
+ }
+}
\ No newline at end of file
diff -r 000000000000 -r 1e7ffdb6d1db main.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.h Thu Mar 20 13:16:01 2014 +0000 @@ -0,0 +1,53 @@ +#ifndef MAIN_H +#define MAIN_H +/******************************************************** +* INCLUDES +********************************************************/ +#include "mbed.h" +#include "rtos.h" +#include <iostream> +#include <vector> + + /******************************************************** +* DEFINES +********************************************************/ + + +#define DELAY 0.5 + +#define MMA8452_WRITE_ADDRESS 0x3A +#define MMA8452_READ_ADDRESS 0x3B +#define WHO_AM_I 0x0D +#define OUT_X_MSB 0x01 +#define OUT_X_LSB 0x02 +#define OUT_Y_MSB 0x03 +#define OUT_Y_LSB 0x04 +#define OUT_Z_MSB 0x05 +#define OUT_Z_LSB 0x06 +#define CTRL_REG1 0x2A +#define CTRL_REG2 0x2B +#define XYZ_DATA_CFG 0x0E + +/******************************************************** +* VARIABLE GLOBALE +********************************************************/ + + +/******************************************************** +* PROTOTYPE FONCTION ACCELERO +********************************************************/ +void WriteToRegister(int address, int startingRegister, int data2Write); +int ReadRegister(int address, int startingRegister); +char i2c_read_reg(char address) ; +bool initAccel(); +unsigned short getAccelValue(char MSB_addr); + + + +/******************************************************** +* THREADS +********************************************************/ +void collector_thread(void const *args); + + +#endif \ No newline at end of file
diff -r 000000000000 -r 1e7ffdb6d1db mbed-rtos.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-rtos.lib Thu Mar 20 13:16:01 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed-rtos/#771275db0efe
diff -r 000000000000 -r 1e7ffdb6d1db mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Thu Mar 20 13:16:01 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/8e73be2a2ac1 \ No newline at end of file