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76 Commits

Author SHA1 Message Date
Andrew Tridgell
dda68bddcb AP_InertialSensor: updates for AP_HAL::MemberProc 2013-09-30 21:06:42 +10:00
Andrew Tridgell
03036c632d AP_InertialSensor: use new scheduler API 2013-09-28 21:24:03 +10:00
Randy Mackay
f7ba0438ef InertialSensor: remove DMP 
this saves 3K of flash
 2013-09-27 10:43:33 +09:00
Andrew Tridgell
14636e1cdf AP_InertialSensor: changed num_samples_available() to sample_available() 
this makes the interface clearer. It also fixes a 3D accel cal bug.
 2013-09-27 10:49:00 +10:00
Andrew Tridgell
1ec5cbed81 AP_InertialSensor: removed SMACCM support 2013-09-26 22:38:31 +10:00
Andrew Tridgell
770b7b5901 AP_InertialSensor: prevent a lockup in MPU6000 driver 
thanks to the VRBrain port for noticing this bug.

Failing to get the semaphore is an expected error with the MPU6000, as
we read data both from timer context and mainline code. That means
semaphore conflicts are inevitable. We shouldn't consider them an
error, and shouldn't panic when some arbitrary number of them have
happened since boot.

Instead the wait_for_sample() code checks that we receive new data at
least every 50ms. That is a much safer test.
 2013-09-23 22:48:36 +10:00
Andrew Tridgell
76e20150e9 AP_InertialSensor: ensure parent class is initialised in instance classes 2013-04-12 14:30:35 +10:00
Randy Mackay
af13f6795c INS: switch to global definition of GRAVITY_MSS 
saves 4 bytes of RAM
 2013-04-05 22:57:46 +09:00
Randy Mackay
318a831b57 INS: set default filter to 20hz for APM2.x and PX4 2013-03-01 19:35:34 +09:00
Andrew Tridgell
a63275d284 AP_InertialSensor: expand register range in MPU6000 _dump_registers() 2013-02-13 19:33:40 +11:00
Andrew Tridgell
7b1245937c AP_InertialSensor: always sample at 200Hz in MPU6000 
this changes the sampling to 200Hz regardless of requested rate, and
it is downsampled inside num_samples_available() using a shift. This
gives better noise resistance in ArduPlane.

This patch also makes it possible to update the filter frequency while
running, which is very useful for bench testing with a vibration
source
 2013-02-07 10:23:08 +11:00
Randy Mackay
bad81a5113 AP_InertialSensor_MPU6k: remove unnecessary check of sign when receiving fifo packet from dmp 2013-01-27 11:22:39 +09:00
James Bielman
5631f865b2 Update floating point calculations to use floats instead of doubles. 
- Allows use of hardware floating point on the Cortex-M4.
- Added "f" suffix to floating point literals.
- Call floating point versions of stdlib math functions.
 2013-01-16 13:52:01 +11:00
Andrew Tridgell
d7996acdf7 AP_InertialSensor: added set_board_orientation() method 2013-01-13 17:32:48 +11:00
Andrew Tridgell
6142eac4b4 AP_InertialSensor: simplify get_delta_time() API 
use a single float return rather than two APIs.

This also changes the MPU6k driver to match the new 2.9 behaviour of
using the MPU6k sample timing instead of micros()
 2013-01-11 21:17:21 +11:00
Pat Hickey
910e09fc96 AP_InertialSensor_MPU6000: fix sync/async semaphore usage with new scheduler 2013-01-10 14:12:19 -08:00
James Bielman
8e38ef6567 MPU6000: Flip Y and Z axes for SMACCM_HAL. 
- The accelerometer is upside-down on the PX4FMU vs the APM2.
 2013-01-09 11:19:51 -08:00
James Bielman
1309b7332a MPU6000: Use signed addition when accumulating readings. 
- Fixes very erratic accel readings on the PX4 board.
 2013-01-09 11:19:51 -08:00
Andrew Tridgell
f48790a56e AP_InertialSensor: poll for new data in num_samples_available() 
this lowers the latency for new data
 2013-01-09 20:31:09 +11:00
Andrew Tridgell
4ab1cddd15 AP_InertialSensor: ensure we always have the SPI semaphore for MPU6k 2013-01-09 20:30:20 +11:00
Andrew Tridgell
b39166b71a MPU6000: fixed minor timing bug 
if we miss a sample due to SPI contention we shouldn't update last
sample time
 2013-01-07 11:07:29 +11:00
James Bielman
d84ba8ef59 Use HAL suspend/resume timer procs rather than atomic. 
- Preparation for removing begin/end atomic.
 2013-01-03 17:33:13 -08:00
Pat Hickey
d808c19c10 AP_InertialSensor_MPU6000: uses new semaphores 
* some refactoring to fix differences between timerprocess
  and non-timerprocess usage
 2013-01-03 13:48:07 -08:00
James Bielman
acf05a29ee AP_InertialSensor_MPU6000: Poll status register if there is no data ready pin. 2013-01-03 13:48:06 -08:00
Andrew Tridgell
212728be34 InertialSensor: ensure MPU6000 is out of sleep mode before configuring 
the MPU6000 starts in sleep mode, and can take a while to wakeup
 2012-12-27 21:28:41 +11:00
Andrew Tridgell
122b8716a7 InertialSensor: added auto reset of MPU6000 on startup failure 
this works around the problem of the MPU6000 failing to come up on DTR
reset or warm reboot
 2012-12-24 07:17:03 +11:00
Andrew Tridgell
44ad850542 InertialSensor: latch the data ready pin high on new data 
this ensures we don't miss a sample due to another source of delay
 2012-12-23 17:46:36 +11:00
Andrew Tridgell
e2edad8a3f InertialSensor: fixed last sample time in MPU6000 
we lost this in the final work on the DTR bug
 2012-12-23 08:59:35 +11:00
Andrew Tridgell
1a53bc783c InertialSensor: poll data ready pin instead of an interrupt for MPU6k 2012-12-22 09:16:31 +11:00
Andrew Tridgell
9548e7e79e InertialSensor: simplify the data_ready interrupt handling 
this avoids using the defer process code, and fixes a nasty bug that
caused the APM to lockup on reset
 2012-12-21 20:01:19 +11:00
Andrew Tridgell
44f860e102 InertialSensor: fixed some compiler warnings 2012-12-20 14:52:35 +11:00
Pat Hickey
b502732249 AP_InertialSensor: rewrite basic code for spi device transactions 
* I'm not touching that DMP stuff because I'm pretty convinced it should
  instead be deprecated
 2012-12-20 14:52:32 +11:00
Pat Hickey
a4f41c1d29 AP_InertialSensor: MPU6000 uses scheduler panic 2012-12-20 14:52:31 +11:00
Andrew Tridgell
2c1682f310 InertialSensor: use AP_HAL progmem 2012-12-20 14:51:39 +11:00
Andrew Tridgell
c9a81d7de6 AP_InertialSensor: fixed sign of 16 bit SPI transfer 
this gets accels and gyros working again
 2012-12-20 14:51:36 +11:00
Pat Hickey
9aca19415a AP_InertialSensor: robust semaphores 2012-12-20 14:51:36 +11:00
Pat Hickey
1019fb45e7 AP_InertialSensor: remove sei in data interrupt handler 2012-12-20 14:51:36 +11:00
Pat Hickey
4acf2c8591 AP_InertialSensor: ported to AP_HAL 2012-12-20 14:51:26 +11:00
rmackay9
b4e5176e2a ArduCopter, AP_InertialSensor: restore mpu6k sample rate to 200hz but keep default filtering at 42hz. 2012-12-09 14:27:33 +09:00
Andrew Tridgell
3b18c57691 AP_InertialSensor: removed axis getters for accel/gyro 
these were only being used in one place, and in that place were used
incorrectly!
 2012-12-04 09:11:55 +11:00
Andrew Tridgell
b237c0583d AP_InertialSensor: Added INS_MPU6K_FILTER option 
this allows the user to select the MPU6000 filtering frequency
 2012-11-30 07:15:19 +11:00
Andrew Tridgell
089ae0f9f3 AP_InertialSensor: allow specification of sample rate in init() call 
this lets the caller not need to know the underlying sample rate. They
just ask for what rate updates happen. 

This also changes the MPU6k filtering to be less than half the sample
rate
 2012-11-30 07:15:18 +11:00
Andrew Tridgell
f843705da3 INS: switch to SREG = oldSREG pattern for interrupt mask/restore 2012-11-20 22:31:23 +11:00
Andrew Tridgell
3776e6108f INS: use vector subtraction to make code clearer 2012-11-20 18:32:27 +11:00
rmackay9
8ccac5da3d AP_InertialSensor: correct typo to datasheet's filename 2012-11-20 00:37:42 +09:00
rmackay9
d9b4407e64 AP_InertialSensor: changes after review with Tridge. 
sanity checking added to accelerometer calibration routine.
user feedback is sent using gcs_send_text_fmt instead of Serial.printf.
moved ins parameters to new eeprom number to avoid conflicts with older parameters.
other small changes including renaming of functions and parameters.
 2012-11-07 19:21:15 +09:00
rmackay9
49de46a548 AP_InertialSensor: merge in calibration features from IMU library 
add gauss-newton method of accelerometer calibration
 2012-11-07 19:20:27 +09:00
rmackay9
8c6fd340d7 AP_AHRS: added scheduler parameter to init 
Required by the AP_AHRS_MPU6000 class which needs to disable timed processes that could interfere with it's communication with the mpu6000
 2012-09-29 13:51:21 +09:00
rmackay9
41fbb19cf5 AP_InertialSensor_MPU6000: replaced _cs_pin parameter with #define and saved 1 byte of memory 
Updated ArduCopter, ArduPlane and example sketches in AP_InertialSensor, AP_IMU and AP_AHRS libraries because they no longer need to pass in cs_pin to the constructor
 2012-09-28 19:21:59 +09:00
rmackay9
921ab3fe12 ArduCopter: bug fix to DMP initialisation (it was freezing due to SPI bus conflicts) 2012-09-28 18:34:23 +09:00