MultiWii

ronco

Slightly off-topic, but would this code also help in my case by any chance? I'm currently trying to port the MultiWii 2.0 code to the ArduIMU v2 (flat) from DIYDrones/Sparkfun, which uses an Atmega328@16MHz with analog sensors. I've already managed to add support for the analog gyros (LPR530AL and ...

ronco

i found the reason for this behavior .. it was my mistake

there was a bug in the PPM rx code of my branch.. i fixed it.. so it should work now

regards felix

ronco

one thing..

i updated my branch today .. i dont did changes to the HW PWM gimbal code .. but i did that test with the newest version..

regards felix

ronco

Felix this is my test : roll servo don't move, and tilt servo erratic movements.(test 300 an 50 Hz, same result) m hi katana, there must be something wrong with your setup .. i have a mega here now and the servos move just like thay should.. i just tested it with bad analog servos... did you use pi...

ronco

This just be the answer to a prayer for my bicopters. I will give it a test and report back. Hi copterrichie, i added Bi copter HW PWM support to my branch.. would you like to test it? it is here ->http://code.google.com/p/multiwii/source/browse/#svn%2Fbranches%2Fronco you will need a GUI of the cu...

ronco

Hi, i added gimbal hardware PWM code for the mega to my branch. to test it download all files of it (m) and use the GUI of the crrent shared trunk (r815+ ->http://code.google.com/p/multiwii/source/browse/#svn%2Ftrunk%2FMultiWiiConf_shared) to activate it go to config.h, chose you servo refresh rate ...

ronco

Hi, i think i found a good way to measure the overall interrupt jitter .. i just record the PCINT RX pin jitter of the throttle pin and check the average. to dont have corrupted values by a bad RX i use a promini programmed to do a constand HW PWM value of 1500us code of the RX imitating promini voi...

ronco

ronco wrote:ill take a look if i can fix it by changing the USB usage.. but it is only the GUI cosmetik

fixed.... now i disabled the USB frame interrupt and it works just like it should

no more flicker..

regards felix

ronco

with 101 the standard rx value flicker is back .. its looks just the same as it was with first MWC1.9 and arduino 1.0 somone knows what has been changed to fixe it with 1.0? it may be the same now. I did a small flight test at home with Crius SE and dev_20120522 compiled with 1.0.1 and didn't had a...

ronco

to save some bytes i changed the type of checking the 50Hz to read the rx ..it is now called ervery 10timer1 overflows (20ms / 50hz) but it now dont needs a 32bit variable to check the micros atmn in MWC if (currentTime > rcTime ) { // 50Hz rcTime = currentTime + 20000; computeRC(); the new way: sta...

ronco

i think its better to keep its size.. i also think that we may remove some things from the gui to keep it simple.. now that is interesting - and comes as a surprise to me. Removing would point in opposite direction. Any particular things you have in mind that could be removed from GUI? hehe .. i do...

ronco

hi, i think its better to keep its size.. i also think that we may remove some things from the gui to keep it simple.. i belive we cant turn multiwii in a "Professional" copter firmware .. it is more "simple fly and have fun".. to get it to something like open pilot we will need ...

ronco

hi,

it might has to do with the serial stuff .. because it is just slow with the promini and mega .. the with a promicro it runs smooth

regards

felix

ronco

i did some more tests..

with 101 the standard rx value flicker is back

.. its looks just the same as it was with first MWC1.9 and arduino 1.0
somone knows what has been changed to fixe it with 1.0? it may be the same now.

regards

Felix

ronco

hmm i tried the sparkfun's addon and it seems to not work with arduino 101 ..

so the best way is to load the new leonardo bootloader..

regards felix

ronco

Hi, i just checked it and there was a problem with the USB serial code of the Promicro but it was easy to fix .. i updated the shared trunk with the fix.. there are some good things for all 32u4 boards.. it is now supportet without modding the boards.txt and thay released a really stable bootloader....

ronco

hi tohclin,

i dont really understand what you trie to tell me

but take a look at the last dev's output (http://code.google.com/p/multiwii/sourc ... ut.pde#484)

i changed the whole thing

to see the results (thats sometimes better then just chacking the schematic) you can use something like that http://www.zeitnitz.de/Christian/scope_en

regards felix

ronco

hi Hamburger, sounds good to get rid of the 2ms jitters many users have reported. i think this wont remove the jitter complete .. it will reduce it .. the most jitter is caused by the RX interrupts Since you are at it - what is actually left in the code that relies on the arduino environment? what i...

ronco

Hi, i just tried some time calculations with the 16bit timer 1 (which is present on all proc's we use) i get it to work now but it is a little larger then the arduino functions (~200-500byte in my tests) the goal was to use timer 1 for the time functions and for HW PWM.. i took some things of ampere...

ronco

I am new to MCU programming and struggling to understand the MultiWii 2.0 code. Any help will be highly appreciated. In the output.ino, just near the end of the initializeServo(), TCCR0A=0; //normal counting mode TIMSK0 |=(1<<OCIE0A); //Enable CTC interrupt According to the datasheet, this is not i...

ronco

Hi h_e_c. i dont think that you can build ESC's cheaper then you can buy them.. i dont know if you know how brushless motors work and how thay need to be controlled.. i would say it isnt that easy.. .. do you have a working ESC soft for a PICAXE? if not i would sugguest to buy some cheap ones from H...

ronco

Hi spambot, sorry for the late replay .. somtimes i miss to look at general forum to change pin 2 to pin 7 on the mega and for a quad you need to change the the timer used for pin 2... first change the PWM pin order to have pin 7 initialized with a 4 motor setting. change: (in output.pde) #if define...

ronco

Hi Danal,

i think thats a good thing!

regards Felix

ronco

Hi,

well i know the main problem is the fact that we use software PWM for the servos.
i just tried to reduce the jitter with this new servo code.

on the mega is one free timer (5) with three PWM channels so i will do a servo hardware PWM code for it soon.

regards felix

ronco

Hamburger wrote:forgotten or just too busy, everybody?

... less spare time time ATM.

but ill do it !

regards felix

ronco

Hi katana,

thanks for testing

... i take a look on how to implement it in 2.0..

regards Felix

ronco

I did it. New config.h is in _shared. Layout: I tried to use indentation to make it more readable and emphasize on the structure. Policy: every feature is commented; default is no copter type predefined, wmp only, standard 4 channel RX input on promini/nano/mega Please have a look m and let us deci...

ronco

Hamburger wrote:Hi
To ease individual setup a cross versions could we please aggree on a default set for config.h?
I propose having everything disabled - effectively a wmp only setup with no copter type enabled.

+1

edit: standard RX will be acitive with nothing special enabled

regards felix

ronco

hi,

here is a compiled GUI for windows. -> http://www.2shared.com/file/WhSsT1hB/MWC_conf.html

its not that simple to mix the files of the dev and the 2.0

regards Felix

ronco

Hi Hamburger, We are close to going 32 bit arent we? it seems to be inevitable... as we all know dongs did that step and i think its the right way for autonomous flying copter with all possible features. but how and when will we do it? dongs MWC port seems to work well and the hardware he uses is ch...

ronco

Hi katana, Is it possible with your modification to pilot the 2 servo up to 300hz? yes it is what this code does you can use the actual shared trunk version. i added this code there. you just need to change: /*********************** Servo Refreshrates ***********************/ /* Default 50Hz Servo r...

ronco

Hi, i noticed that the "basic" sketch's byte size growth (with standard config.h settings).. i think it may be better to isolate more things via config.h activation. so i whish that: - LCD would be not active in "standard" (i think the most people dont have LCD's) - servo middle'...

ronco

Hi dr.tom, with this hexa+servos method we have just one timer comperator for two motors. and because of this the trottle range is reduced to 1000-1900 please change mintrottle to 1000 or more, maxthrottle 1900 or less. and trie again. edit: mincommand to 1000 or more .. not minthrottle thats also t...

ronco

does anyone have a working hexa + gimbal on promini? #defined A0&A1 pins for motor 5&6 for use with normal RX. I can make it fly really good without gimbal, if i activate gimbal(#servo_tilt) in config, it works great, but then motors 5&6 don't spin. and first 4 motors work ok. any advic...

ronco

does anyone have a working hexa + gimbal on promini? #defined A0&A1 pins for motor 5&6 for use with normal RX. I can make it fly really good without gimbal, if i activate gimbal(#servo_tilt) in config, it works great, but then motors 5&6 don't spin. and first 4 motors work ok. any advic...

ronco

Hi Felix, So after reading up and getting a little familiar with the platform and the multiwii code I have successfully moved the PPM sum input pin to Digital Pin 3. I am now trying to enable the PWM for digitial pin 5 to replace the motor output lost 3. So far I have: Changed the PWM_PIN array to:...

ronco

Hi, i did some tests with our soft PWM servo code. i would like to have the possibility to run the servos with more then 50Hz .. because for what i know the most digital servos works well with up to 300Hz. so i changed the servo ISR to work in a chain order. it works well as it is .. and it cleans a...

ronco

Hi,

Code: Select all

   attachInterrupt(1, rxInt, RISING);

is right, but as copterrichie said pin 3 is used as an output pin to use it as input you have to change a output pin.. and that isnt so easy. because pin !=pin

regards

Felix

ronco

Hi,

the correct RX pin order and these dubble SERVO_TILT define is now fixed in shared trunk.

thanks for testing

regards Felix

ronco

so if someone can confirm this order i will update the shared trunk with it..

regards felix

ronco

I've found it.(almost for a MEGA) in RX.pde #if (PCINT_PIN_COUNT > 0) RX_PIN_CHECK(0,2); #endif #if (PCINT_PIN_COUNT > 1) RX_PIN_CHECK(1,4); #endif #if (PCINT_PIN_COUNT > 2) RX_PIN_CHECK(2,5); #endif #if (PCINT_PIN_COUNT > 3) RX_PIN_CHECK(3,6); #endif #if (PCINT_PIN_COUNT > 4) RX_PIN_CHECK(4,7); #e...

ronco

Hi, My first teensy board is complete now it looks like everything works well (atm. just on the ground) ill do some flight tests soon .. but i think it will behave just like the promicro does. the good things on it (compared with the sparkfun promicro) are: - it has all pins of the ATmega32u4 broken...

ronco

Hi, i added a teensy 2.0 support to the actual shared trunk. its not much code because the ATmega32u4 is already there for the ProMicro to use the teensy with teensduino instead of loading the leonardo bootloader i had to change some small things. here is a fast pinout for it: Teensy_2_0_pins.jpg i ...

ronco

i finished the parts that i thought that needs it the moust ..

there are still these things that need to be checked

- standart RX on MEGA
- PPM SUM on all platfores
- SBUS on all platformes
- mongose IMU board

regards Felix

ronco

thats a good idea!

thanks

felix

ronco

The shared trunk is broken... Its' not possible to keep both clean_up and original files in same project. There will be lots of double defines of everyting. should we use clean_up or orignal? Who desides? /Patrik Hi Patrik, its hard to say .. i trie to do the cleanup as fast as possible .. so they ...

ronco

Hi,

MWC uses 488hz for escs. i dont know your ESC's so i cant say if this is what you need.

regards felix

ronco

Hi Hamburger, ok! i started with RX.pde but i had to change some things in def.h so i aslo started to sort things in it. i calld them filename_clean_up.xxx i have did all test i can do here with it so: - spektrum satellite -> works - standard RX -> works with Promini and Promicro - openlrs should al...

ronco

Hi, i would linke to clean and sort things. now i thought about how to do it .. this way http://www.multiwii.com/forum/viewtopic.php?f=8&t=1592 is a bit to radical and not fast enough (i will keep it on anyway ) to do it in a smooth way i was thinking of dublicate the needed files in shared trun...

ronco

Hi, i tried to fix it .. but with your (howardhb)s code the standard RX dont works. i cant test RCSERIAL and OPENLRSv2MULTI so i removed this boolean .. now spektrum satellite and standart RX works (r720) if this is needed for RCSERIAL and OPENLRSv2MULTI we may do #if !(defined(RCSERIAL) || defined(...

Search found 317 matches