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authorcnlohr <lohr85@gmail.com>2018-04-06 19:39:27 -0400
committercnlohr <lohr85@gmail.com>2018-04-06 19:39:27 -0400
commit55f498db296ff353a0cf870c51bffd92cc360484 (patch)
tree7de65575af2782d831bc0d310d38be56c7346ca8 /src/survive_vive.c
parent70587714196d1a8c62597f22044d0a3e93cd64a1 (diff)
downloadlibsurvive-55f498db296ff353a0cf870c51bffd92cc360484.tar.gz
libsurvive-55f498db296ff353a0cf870c51bffd92cc360484.tar.bz2
Unify the location of the updates to the IMU to use G's and rads/sec
Diffstat (limited to 'src/survive_vive.c')
-rwxr-xr-xsrc/survive_vive.c29
1 files changed, 1 insertions, 28 deletions
diff --git a/src/survive_vive.c b/src/survive_vive.c
index 1ffb737..60b3dc9 100755
--- a/src/survive_vive.c
+++ b/src/survive_vive.c
@@ -1239,20 +1239,9 @@ static void handle_watchman( SurviveObject * w, uint8_t * readdata )
0,0,0 };
// if (w->acc_scale) printf("%f %f %f\n",w->acc_scale[0],w->acc_scale[1],w->acc_scale[2]);
- calibrate_acc(w, agm);
-
//I don't understand where these numbers come from but the data from the WMD seems to max out at 255...
- agm[0]*=(1.0f/255.0f);
- agm[1]*=(1.0f/255.0f);
- agm[2]*=(1.0f/255.0f);
-
+ calibrate_acc(w, agm);
calibrate_gyro(w, agm+3);
-
- //I don't understand where these numbers come from but the data from the WMD seems to max out at 255...
- agm[3]*=(1.0f/255.0f);
- agm[4]*=(1.0f/255.0f);
- agm[5]*=(1.0f/255.0f);
-
w->ctx->imuproc( w, 3, agm, (time1<<24)|(time2<<16)|readdata[0], 0 );
int16_t * k = (int16_t *)readdata+1;
@@ -1495,24 +1484,8 @@ void survive_data_cb( SurviveUSBInterface * si )
0,
0};
- //1G for accelerometer, from MPU6500 datasheet
- //this can change if the firmware changes the sensitivity.
- // When coming off of USB, these values are in units of .5g -JB
- agm[0] *= (float)(2. / 8192.0);
- agm[1] *= (float)(2. / 8192.0);
- agm[2] *= (float)(2. / 8192.0);
calibrate_acc(obj, agm);
-
- // From datasheet, can be 250, 500, 1000, 2000 deg/s range over 16 bits
- // FLT deg_per_sec = 250;
- // FLT conv = (float)((1./deg_per_sec)*(3.14159/180.)) / 8192.;
- FLT DEGREES_TO_RADS = 3.14159 / 180.;
- FLT conv = 1. / 10. * DEGREES_TO_RADS;
calibrate_gyro(obj, agm + 3);
- agm[3] *= conv;
- agm[4] *= conv;
- agm[5] *= conv;
-
ctx->imuproc( obj, 3, agm, timecode, code );
}
}