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Code Issues Releases Activity
4,818 Commits 5 Branches 8 Tags 266 MiB
7b548eaa54
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477 Commits

Author SHA1 Message Date
James Cotton
7b548eaa54 Fix bug in the integral for altitude hold where it was accumulating wrong variable. 2012-02-21 00:40:55 -06:00
James Cotton
900780e10c Add bias estimation to the altitude fusion algorithm. Necessary to increase 
the gains on acceleration and velocity feedback terms (they are a problem when
biased).
 2012-02-19 11:38:09 -06:00
James Cotton
47fac7e31c Move the throttle setting code for alt hold into the fast accel loop. 2012-02-18 18:16:15 -06:00
James Cotton
7d4582e5f0 Update the altitude KF to use the updated measurements appropriately and check 
in the relevant matlab code to check it and genererate it.  Produces quite
smooth traces.
 2012-02-16 05:33:47 -06:00
James Cotton
c957172f8f In the case of swapping in userspace due to the buffer being blocked during 
ISR, make sure the latency is less than 50 us to avoid framesync errors.  Still
seeing a few nonsense packets on Overo side but fairly few.  Probably need to
add CRC to whole packet now and call it done.
 2012-02-14 11:06:16 -06:00
James Cotton
1930d092eb In the case where the overo scheduler cannot swap buffers (userspace loading 
it) then set a flag so as soon as the buffer is loaded then we schedule it.
 2012-02-14 11:00:29 -06:00
James Cotton
f04c58b0f4 Make the overo transaction occur based on the rising edge of the NSS line. 
This fixes most of the frame sync problems.  However, it's a bit hacky as
there is currently hardware information inside a module.
 2012-02-14 10:37:30 -06:00
James Cotton
d018d93e88 Clean up previous commit a bit and make the sampling rate a variable (and adapt 
the sampling time accordingly).
 2012-02-13 01:49:54 -06:00
James Cotton
3acbfbe96c Convert the pressure sensor code to most of the calculations as int64 to retain 
precision.
 2012-02-13 01:22:48 -06:00
James Cotton
f23f53dc4e Add settings for the altitude kalman filter settings and init the state when 
first measurement arrives
 2012-02-12 09:07:27 -06:00
James Cotton
34ca5777dd Kalman filter for altitude 2012-02-11 21:08:19 -06:00
James Cotton
d8f0494e57 Merge branch 'revolution' into revolution_overo 2012-02-11 20:02:20 -06:00
James Cotton
3026527801 Now the desired altitude is relative to when the switch was flipped so that the 
baro altitude module can use a smoothed altitude estimate for the starting
point.
 2012-02-08 23:02:29 -06:00
James Cotton
80d602ef7b Switch order of some commands to make sure it loads the correct hover throttle 2012-02-08 20:47:10 -06:00
James Cotton
ab41bae071 Separately smooth the error estimate from the derivative 2012-02-08 11:15:33 -06:00
James Cotton
60c951843d Use backtracking to limit integral in altitude hold and smooth the velocity 
error.  Initialize the throttle integral better.
 2012-02-08 10:39:31 -06:00
James Cotton
c6b1d6b8df Rework the altitude hold code a bit 2012-02-08 09:42:10 -06:00
James Cotton
49a03a868b Merge branch 'altitudehold' into revolution_overo 
Conflicts:
	flight/OpenPilot/UAVObjects.inc
	flight/Project/OpenPilotOSX/OpenPilotOSX.xcodeproj/project.pbxproj
	flight/Revolution/Makefile
	flight/Revolution/ins.c
 2012-02-07 23:00:29 -06:00
James Cotton
6ec0f06c80 Back to 1024 byte packets 2012-02-07 13:02:11 -06:00
James Cotton
2c60447200 Switch back to 512 byte packets and fix bug when writing the header size that 
was smashing the crc
 2012-02-07 11:32:04 -06:00
James Cotton
221a0c5e53 Add the number of dropped updates to the overosync stats 2012-02-07 09:13:26 -06:00
James Cotton
a89d425b23 Reset the received rate for overo sync object 2012-02-07 09:01:58 -06:00
James Cotton
02bec750bd In the attitude loop need to check all the queues even if unused or the event 
system will have warnings
 2012-02-07 08:46:34 -06:00
James Cotton
ae01936808 Add the portTickTime into the OveroSync stream 2012-02-06 10:00:02 -06:00
James Cotton
dbcb499d7f Add object to monitor the overo link status. Current just records the bytes/s 
being sent and the connected status (based on sending more than 500 bytes per
second)
 2012-02-06 09:37:31 -06:00
James Cotton
5b2376dbee Remove the semaphore for buffer swapping and make this occur during the receive 
ISR.  This leads to a possible condition where a copy is taking place in
userspace and then a buffer swap interrupts it.  However, the copy should
always finish before the SPI DMA slave catches up to that place in memory at 10
MHz.

This fixes a common condition where the userspace task (low priority) was not
swapping buffers in time from user space and logs were corrupted.
 2012-02-06 08:21:24 -06:00
James Cotton
179e66b754 Refactor how new packets are scheduled to avoid trying to start a transaction 
from an ISR.  This was causing lock ups.  It's a bit higher latency probably
(trivially slow) but if we aren't keeping up with the Overo transactions then
using a proper DMA double buffer will be required.
 2012-02-04 20:11:31 -06:00
James Cotton
665801662d In cc3d update sensors add accelbias before scaling to allow more precision in 
levelinIn cc3d update sensors add accelbias before scaling to allow more
precision in levelingg
 2012-02-04 12:12:41 -06:00
James Cotton
4e190f99e2 Improved the revo overosync code to put multiple uavobjects into a packet 2012-02-04 12:06:03 -06:00
James Cotton
c26154f303 Switch back to 256 byte packets and 0xFF pad the end 2012-02-02 11:40:49 -06:00
James Cotton
8b1137c6a0 Align the tx and rx SPI buffers from Overosync 2012-02-02 11:23:40 -06:00
James Cotton
0a71a48c57 Sending all FF finally again 2012-02-02 10:36:09 -06:00
James Cotton
95abb56d5e Added module to send updates out the SPI port 2012-02-02 09:19:25 -06:00
James Cotton
a778c45d6f For L3GD20 sensor task run at the sensor speed 2012-01-28 10:11:30 -06:00
James Cotton
13447ac907 Fix the MPU6000 implementation 2012-01-28 00:21:58 -06:00
James Cotton
b4435d0b35 For L3GD20 sensor task on revo update gyro once per physical sample 2012-01-26 23:29:12 -06:00
James Cotton
84dd1dbc40 A bit more lenient settings for CC sensor timings 2012-01-26 13:00:06 -06:00
James Cotton
727f0befc5 Make the gyro go a bit more regularly to stabilization but needs updating 
regular CC
 2012-01-25 22:50:19 -06:00
James Cotton
e4df3202e0 L3GD20: Update sensor task for revo to use the new queue 2012-01-25 22:50:19 -06:00
James Cotton
205aabe895 L3GD20: Make this sensor push data onto a FreeRTOS queue so that the sensor 
reading task can block according.  Also now the gyro data is sent to
stabilization multiple times per update of the attitude loop.
 2012-01-25 01:20:07 -06:00
James Cotton
1971ba30dc No longer hardcode baudrate 2012-01-24 23:42:43 -06:00
James Cotton
104c091590 Correct the range constants for the L3GD20 driver 2012-01-24 19:48:14 -06:00
James Cotton
a25d52785b Change the bus speed for the L3GD20 to 10MHz and some small cleanups 2012-01-24 19:17:49 -06:00
James Cotton
b6c056fef2 Use the updated L3GD20 format and make attitude.c use the gyro data from the 
fifo
 2012-01-24 15:52:17 -06:00
James Cotton
5efbfb02fa Make the BMA180 sensor system acquire from the queue. Correct the orientation 
and speed it up to 10 MHz communications.
 2012-01-24 15:09:20 -06:00
James Cotton
8c208412c9 Give the BMA180 a dynamically allocated device structure and also make it 
properly bind to a SPI and slave number.  Temporarily reducing spi bus to
slowest possible speed.
 2012-01-24 14:38:00 -06:00
James Cotton
8e79bc2ee2 Temporarily refactor attitude to directly read the sensors instead of pull from 
their queues until the interrupts are working properly
 2012-01-24 11:54:23 -06:00
James Cotton
e9552065a9 Reenable the CC3D sensors 2012-01-24 11:03:33 -06:00
James Cotton
c242ab8b86 Merge branch 'next' into revolution3 
Conflicts:
	flight/AHRS/ahrs.c
	flight/AHRS/pios_board.c
	flight/Bootloaders/Revolution/Makefile
	flight/CopterControl/System/pios_board.c
	flight/INS/pios_board.c
	flight/OpenPilot/Makefile
	flight/OpenPilot/System/openpilot.c
	flight/OpenPilot/System/pios_board.c
	flight/PiOS/Boards/STM32103CB_CC_Rev1.h
	flight/PiOS/Boards/STM32F4xx_Revolution.h
	flight/Revolution/Makefile
	flight/Revolution/System/inc/pios_config.h
	flight/Revolution/test.c
 2012-01-24 10:46:35 -06:00
James Cotton
486cdb5dbb Got CC running again although with altitude and bmp085 disabled as well as the 
CC3D drivers.
 2012-01-24 10:32:42 -06:00