Important changes to repositories hosted on mbed.com
Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.
To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.
It is also possible to export all your personal repositories from the account settings page.
Dependencies: CommonTables FastAtan2 FastMathFunctions Magnetic
Diff: FastECompass.cpp
- Revision:
- 2:c14ec86128a6
- Parent:
- 0:a3affe6b4fe8
--- a/FastECompass.cpp Sat Jun 18 21:26:52 2016 +0000
+++ b/FastECompass.cpp Mon Jun 20 15:26:07 2016 +0000
@@ -55,17 +55,15 @@
accsensor->getAxis(acc_raw);
magsensor->getAxis(mag_raw);
- mag_raw.x=mag_raw.x-i16magcal.itrVx;
- mag_raw.y=mag_raw.y-i16magcal.itrVy;
- mag_raw.z=mag_raw.z-i16magcal.itrVz;
-
- //printf("%d,%d,%d\n",mag_raw.x,mag_raw.y,mag_raw.z);
- //printf("%d,%d,%d\n",acc_raw.x,acc_raw.y,acc_raw.z);
+ mag_raw.x-=i16magcal.itrVx;
+ mag_raw.y-=i16magcal.itrVy;
+ mag_raw.z-=i16magcal.itrVz;
phi=atan2_q15(acc_raw.z,acc_raw.y);
- roll=int32_t(phi);
-
+ roll=(RAD_Q15_TODEG(int32_t(phi)))>>QFORMAT;
+ roll=(roll>90)?(180-roll):((roll<-90)?(-180-roll):roll);
+
phi=(phi<<QFORMAT)/PIx2_Q15;
if(phi<0){
@@ -79,7 +77,9 @@
theta=atan2_q15(((((isin_phi*acc_raw.y)+(icos_phi*acc_raw.z)))>>15),-acc_raw.x);
- pitch=(int32_t)theta;
+ pitch=(RAD_Q15_TODEG((int32_t)theta))>>QFORMAT;
+
+ pitch=(pitch>90)?(180-pitch):((pitch<-90)?(-180-pitch):pitch);
theta=(theta<<QFORMAT)/PIx2_Q15;
@@ -97,37 +97,24 @@
bfx=((mag_raw.x*icos_theta)+(((mag_raw.y*isin_theta)>>QFORMAT)*isin_phi)+(mag_raw.z*((isin_theta*icos_phi)>>QFORMAT)))>>QFORMAT;
psi=atan2_q15(bfx,-bfy);
-
- yaw=(int32_t)psi;
-
+
+ yaw=(RAD_Q15_TODEG((int32_t)psi))>>QFORMAT;
+ yaw=(yaw<0)?(yaw+360):yaw;
+
}
int32_t FastECompass::getRoll(){
-
- roll=(RAD_Q15_TODEG(roll))>>QFORMAT;
-
- if(roll>90) roll=180-roll;
- if(roll<-90) roll=-180-roll;
-
+
return roll;
}
int32_t FastECompass::getPitch(){
-
-
- pitch=(RAD_Q15_TODEG(pitch))>>QFORMAT;
-
- if(pitch>90)pitch=180-pitch;
- if(pitch<-90)pitch=-180-pitch;
-
+
return pitch;
}
int32_t FastECompass::getYaw(){
-
- yaw=(RAD_Q15_TODEG(yaw))>>QFORMAT;
-
return yaw;
}