Tyler Weaver
Unit testing and development for 9DOF sparkfun sensor stick
Dependencies: ADXL345 HMC5883L ITG3200 mbed
Revision 0:ac2f55940442, committed 2012-10-30
- Comitter:
- tylerjw
- Date:
- Tue Oct 30 17:30:03 2012 +0000
- Child:
- 1:dc730a26cdc2
- Commit message:
- 0.1 ITG3200 Thermal Drift Test
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/ITG3200.lib Tue Oct 30 17:30:03 2012 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/tylerjw/code/ITG3200/#33a9ed8e8988
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Tue Oct 30 17:30:03 2012 +0000
@@ -0,0 +1,52 @@
+/**
+ 10 second 9-dof data log
+
+ The purpose of this program is to demonstrate and calibrate the three
+ sensors on teh 9-doft board.
+
+ The first version of this software will test the ITG3200 gyro to find
+ the temperature drift line. Data will be logged to help determine the
+ thermal drift line.
+ See: http://mbed.org/users/gltest26/code/ITG3200/wiki/Thermal-Drift
+*/
+
+#include "mbed.h"
+#include "ITG3200.h"
+
+int main()
+{
+ DigitalOut myled(p24);
+ LocalFileSystem local("local"); // Create the local filesystem under the name "local"
+ ITG3200 gyro(p28, p27); // sda, scl - gyro
+ //const float offset[3] = {99.53, -45.26, -29.53}; // taken from itg3200_05.xls curve fit
+ //const float slope[3] = {-0.95, 0.95, 0.47};
+
+ //gyro.setCalibrationCurve(offset, slope);
+ //gyro.calibrate(1.0);
+ gyro.setLpBandwidth(LPFBW_5HZ);
+
+ Serial pc(USBTX, USBRX);
+
+ pc.baud(9600);
+
+ myled = 0;
+ FILE *fp = fopen("/local/itg3200.csv", "w"); // Open "itg3200.csv" for writing
+ fputs("Temp, X, Y, Z\r\n", fp); // place the header at the top
+
+ float temperature = 0.0;
+ int gyro_readings[3];
+
+ for(int i = 0; i < 120; i++) { // 120 seconds - 600 samples
+ myled = 1;
+ gyro.calibrate(1.0);
+ //wait(0.5);
+ myled = 0;
+ //gyro.getGyroXYZ(gyro_readings, ITG3200::Calibration);
+ gyro.getOffset(gyro_readings);
+ temperature = gyro.getTemperature();
+ pc.printf("%3d,%f,%d,%d,%d\r\n",i,temperature,gyro_readings[0],gyro_readings[1],gyro_readings[2]);
+ fprintf(fp, "%f,%d,%d,%d\r\n",temperature,gyro_readings[0],gyro_readings[1],gyro_readings[2]);
+ }
+ fclose(fp);
+ myled = 0;
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Tue Oct 30 17:30:03 2012 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/e2ed12d17f06 \ No newline at end of file