Revision 5:34fa5db89a3a, committed 2013-10-16
- Comitter:
- nherriot
- Date:
- Wed Oct 16 16:26:39 2013 +0000
- Parent:
- 4:489573e65d47
- Child:
- 6:94d7ca596f52
- Commit message:
- simplification on several methods
Changed in this revision
--- a/MMA8452.lib Wed Oct 16 14:12:28 2013 +0000
+++ b/MMA8452.lib Wed Oct 16 16:26:39 2013 +0000
@@ -1,1 +1,1 @@
-http://mbed.org/users/nherriot/code/MMA8452/#ffb0b1650ca2
+http://mbed.org/users/nherriot/code/MMA8452/#27aa3cd43234
--- a/main.cpp Wed Oct 16 14:12:28 2013 +0000
+++ b/main.cpp Wed Oct 16 16:26:39 2013 +0000
@@ -14,27 +14,24 @@
-
-
-
-
-
-
int main() {
led1 = 0;
led2 = 0;
led3 = 0;
- char cmd[6];
- char add[1];
- char init[2];
- add[0] = OUT_X_MSB; // x-axis register
- init[0] = CTRL_REG_1; // control register 1
- init[1] = 0x01; // sets the accelerometer to active
- int number=0;
+
char x_buffer[2]; // used to store a bit array from the x axis acclerometer
char y_buffer[2]; // this represents the raw data value from the acclerometer
char z_buffer[2]; // which is converted from 12bit to 16bit value 2s compliment.
+ x_buffer[0] = 0x00;
+ x_buffer[1] = 0x00;
+ y_buffer[0] = 0x00;
+ y_buffer[1] = 0x00;
+ z_buffer[0] = 0x00;
+ z_buffer[0] = 0x00;
+
+ int deviceSystemMode(0);
+
// just playing with address values
char mcu_address = 0x00;
pc.printf("\nmcu_address is: 0x%x ", mcu_address);
@@ -47,32 +44,20 @@
//init
//set active mode
pc.printf("\nWriting to master register\n");
+
+ int deviceStatus = 0;
+ if (accelerometer.get_Status(deviceStatus)==0)
+ {
+ pc.printf("\nGot the device Status - device status which is: 0x%x \n", deviceStatus);
+ }
+ else
+ {
+ pc.printf("\nFailed to get the device status. The id is set as: 0x%x ", deviceStatus);
+ }
+
for (int i=0;i<=50;i++)
{
- int deviceSystemMode= 0;
- if (accelerometer.get_SystemMode(deviceSystemMode)==0)
- {
- pc.printf("\nGot the device System Mode - device system mode which is: 0x%x \n", deviceSystemMode);
- }
- else
- {
- pc.printf("\nFailed to get the device system mode. The id is set as: 0x%x ", deviceSystemMode);
-
- }
-
- int deviceStatus = 0;
- if (accelerometer.get_Status(deviceStatus)==0)
- {
- pc.printf("\nGot the device Status - device status which is: 0x%x \n", deviceStatus);
- }
- else
- {
- pc.printf("\nFailed to get the device status. The id is set as: 0x%x ", deviceStatus);
-
- }
-
-
-
+
if (accelerometer.activate()==0)
{
led1 = 1;
@@ -81,11 +66,11 @@
pc.printf("\nActivated chip\n");
wait(0.5);
- //int x=0;//int y=0;int z=0;
- for(int i=0; i<5;i++)
+
+ for(int i=0; i<10;i++)
{
-
+ /*
if (accelerometer.read_x_raw(x_buffer)==0)
{
//pc.printf("\nThe x-axis LSB is: 0x%x", x);
@@ -99,8 +84,10 @@
pc.printf("\nError - could not get xaxis LSB! ....\n");
}
+ */
+ /*
if (accelerometer.read_y_raw(y_buffer)==0)
{
//pc.printf("\nThe x-axis LSB is: 0x%x", x);
@@ -114,6 +101,8 @@
pc.printf("\nError - could not get yaxis LSB! ....\n");
}
+ */
+
if (accelerometer.read_z_raw(z_buffer)==0)
@@ -121,7 +110,7 @@
//pc.printf("\nThe x-axis LSB is: 0x%x", x);
pc.printf("The value of my z_buffer[0] in digit form is: %d in hex: 0x%x \n",z_buffer[0],z_buffer[0]);
pc.printf("The value of my z_buffer[1] in digit form is: %d in hex: 0x%x \n",z_buffer[1],z_buffer[1]);
- print2bytebinchar(y_buffer);
+ print2bytebinchar(z_buffer);
}
else
@@ -131,10 +120,7 @@
- //y = accelerometer.read_y();
-
- //pc.printf("\nAxis acceleration in x is: %i , y is: %i, z is %z \n", x,y,z);
- wait(1);
+ wait(0.5);
}
}
else
@@ -164,7 +150,7 @@
}
- wait(3);
+ wait(2);
pc.printf("In loop %d, of repeated initialisation.\n",i);
i++;
@@ -181,7 +167,7 @@
{
pc.printf("Device failed to set into standby...\n");
}
- int deviceSystemMode = 0;
+
pc.printf("\nGet system mode, it should now be standby! ...\n");
if (accelerometer.get_SystemMode(deviceSystemMode)==0)
{
@@ -193,62 +179,4 @@
}
-
-
-
-
-
-
-
-
-
-
-
-
-
- /*
- while(1)
- {
- //send procedure
- wait(0.07);
- switch(number){
- case 0:
- if(i2c.write(mcu_address,add,1) == 0){
- number++;
- pc.printf("In case 0 loop. The number is: %d \n", number);
- led1 = 1;
- }else{
- number=0;
- pc.printf("In case 0 loop. The number is reset to: %d \n", number);
- led1 = 0;
- led2 = 0;
- led3 = 1;
- }
- break;
- case 1:
- if(i2c.read(mcu_address,cmd,6) == 0){
- number++;
- pc.printf("In case 1 loop. The number is: %d \n", number);
- led2 = 1;
- }else{
- number=0;
- pc.printf("In case 1 loop. The number is reset to: %d \n", number);
- led1 = 0;
- led2 = 0;
- led3 = 0;
- }
- break;
- case 2:
- //get analog data
- pc.printf("\r X = %d,Y = %d,Z = %d \n",cmd[1],cmd[3],cmd[5]);
- led3 = 1;
- wait(0.5);
- led1 = 0;
- led2 = 0;
- led3 = 0;
- number=0;
- break;
- }
- }*/
-
-}
+ }
Nicholas Herriot
