Search found 136 matches

by gompf-2
Thu Aug 15, 2013 9:26 am
Forum: ESCs, propellers , servos and radios
Topic: DIY "FlySky" RF (Transmitter) module
Replies: 19
Views: 4571

Re: DIY "FlySky" RF (Transmitter) module

Hi,
Best of luck anyway, and I'll keep an eye on your progress...

It´s not my project, I just addes some lines for failsafe/cheapduino.
by gompf-2
Wed Aug 14, 2013 6:57 pm
Forum: ESCs, propellers , servos and radios
Topic: DIY "FlySky" RF (Transmitter) module
Replies: 19
Views: 4571

Re: DIY "FlySky" RF (Transmitter) module

The Shuncom modules look very promising.
Back to the original subject of this thread: FRSky.

? FlySky !=FRSky
The DIY FlySky stuff "works" but was never ment as a duplex link.
by gompf-2
Tue May 28, 2013 6:17 pm
Forum: Software development
Topic: Computer control
Replies: 36
Views: 5251

Re: Computer control

I've read some things about Code: Select all //#define RCSERIAL So, can you give me some more detailed explain? Hi Vectorman, by this define you can use the GUI serial port to transfer rc controls by using MSP_SET_RAW_RC as header. Furthermore you have fallback/failsafe to "normal" reciev...
by gompf-2
Fri May 10, 2013 6:27 pm
Forum: Software development
Topic: UART Radio project
Replies: 112
Views: 20692

Re: UART Radio project

Hi, I did some mods for Jeti, now qnd coded, should be switchable at startup for serial com/jeti sensor output later. I just added jetibox.ino to the project, slightly changed decode() and removed the MW-serial part. Seems I´ve a silly problem with variable scope/pointers I don´t see. It´s not direc...
by gompf-2
Thu May 09, 2013 7:02 am
Forum: Software development
Topic: UART Radio project
Replies: 112
Views: 20692

Re: UART Radio project

Hi, P.S. Do you know of any project using these modules, that offers transfer of pure, unscrambled serial date.... no need for a PPM style RC control link.... just the serial link... "Problem" of the OLRS module is that Meli decided to use software SPI to keep the PWM pins free so the Ardu...
by gompf-2
Tue Apr 30, 2013 8:52 pm
Forum: Boards
Topic: Stellaris Cortex M4F (preorder for september, 4.99$)
Replies: 140
Views: 22081

Re: Stellaris Cortex M4F (preorder for september, 4.99$)

Hi, Hardware is really easy to do, as most in this thread probably noticed. LOL, YES, hit As my platform is EOL and it´s summer again I´ll prefer to buy another naze for the price of the BOOST-SENSHUB (with vintage baro). I have an Energia/MW2.1 something "working" but woudn´t trust it to ...
by gompf-2
Sat Apr 27, 2013 8:03 am
Forum: ESCs, propellers , servos and radios
Topic: charge radio aa batteries: how to?
Replies: 4
Views: 516

Re: charge radio aa batteries: how to?

Hi, normaly it shoud be positiv center contact, switched by TX powerswitch (when OFF). Just a wired connection to the battery tray. If you have take a meter to check polarity and then connect an intelligent charger (B6 or something). Never just connect a wall wart as there is now charger electronics...
by gompf-2
Wed Apr 24, 2013 7:26 pm
Forum: Software development
Topic: UART Radio project
Replies: 112
Views: 20692

Re: UART Radio project

Hi, It should work if you are a little bit arduino aware. You can see in the code PIN assignment. Yes, done: //### PINOUTS OF Ulrich Radig RFM22 PCB #define SDO_pin 12 #define SDI_pin 11 #define SCLK_pin 13 #define IRQ_pin 2 #define nSel_pin 10 #define nIRQ_1 (PIND & 0x04)==0x04 //D2-PD2 #define...
by gompf-2
Mon Apr 22, 2013 7:10 am
Forum: Software development
Topic: UART Radio project
Replies: 112
Views: 20692

Re: UART Radio project

Hi, So some beta testers with a pair of RX OLRS modules are needed ! I´ve 5 very similar boards: http://www.ulrichradig.de/home/uploads/images/RFM22_AVR/Modul.JPG Running OLRS/thUndeadMod was just a question of changing some pins and is fine, I would like to try the same with your code.
by gompf-2
Fri Apr 19, 2013 6:35 am
Forum: Software development
Topic: Multiwii 2.2 hangs when using FrSKY serialsum receiver
Replies: 26
Views: 3364

Re: Multiwii 2.2 hangs when using FrSKY serialsum receiver

Hi, Baseflight is not using 2.2 code jet and won´t run on a 32u4. Problem seems to be isolated to 32u4 (but I didn´t look up everyones hardware here), maybe one should check the errata for issues with irq handling. Interrupts state is stored in SREG register. If the interrupts are enabled before cli...
by gompf-2
Thu Apr 18, 2013 10:06 am
Forum: Software development
Topic: Multiwii 2.2 hangs when using FrSKY serialsum receiver
Replies: 26
Views: 3364

Re: Multiwii 2.2 hangs when using FrSKY serialsum receiver

I´m not a proffesional developer either, but it´s quite strange that uint16_t readRawRC(uint8_t chan) { ... uint8_t oldSREG; oldSREG = SREG; cli(); // Let's disable interrupts data = rcValue[rcChannel[chan]]; // Let's copy the data Atomically SREG = oldSREG; // Let's restore interrupt state #endif r...
by gompf-2
Sat Apr 06, 2013 9:53 am
Forum: Boards
Topic: Stellaris Cortex M4F (preorder for september, 4.99$)
Replies: 140
Views: 22081

Re: Stellaris Cortex M4F (preorder for september, 4.99$)

@ aBUGSworstnightmare: Hi, did you check MPU6050/9050 readout with your drivers? I used your routines with ITG3200/ADXL345 and everything went fine. When I try to readout MPU6050 via 6-Byte burst read Accel is fine, Gyro doesn´t work, but works with alternative I2C-drivers. I tripple checked registe...
by gompf-2
Sat Apr 06, 2013 8:43 am
Forum: Connecting elements
Topic: Segway on multiwii
Replies: 13
Views: 2277

Re: Segway on multiwii

Hi, nice project! Also, servos have 3 discreet "settings": Full speed forward, stopped, and full speed reverse. This is the case whether the servo has been 360° converted or not. That´s not right, ~15 years ago I used servo electronics as speed controllers for modding 1:72 plastic tanks to...
by gompf-2
Fri Mar 22, 2013 2:01 pm
Forum: Boards
Topic: Stellaris Cortex M4F (preorder for september, 4.99$)
Replies: 140
Views: 22081

Re: Stellaris Cortex M4F (preorder for september, 4.99$)

The driver problem itself is mainly already solved, we had the timer+extender version from vdjc/me and energias variable version (timer,timer+extender,wtimer) + many other examples. I2C drivers are also available, we just need "the glue"... I can only provide some prove of concept with Ene...
by gompf-2
Mon Feb 25, 2013 8:58 pm
Forum: Boards
Topic: Stellaris Cortex M4F (preorder for september, 4.99$)
Replies: 140
Views: 22081

Re: Stellaris Cortex M4F (preorder for september, 4.99$)

Hi crashlander, yes it´s a known overflow problem: https://github.com/energia/Energia/issues/154 As I also wanted to keep WT4 free I adapted Timecops way of timing by SysTick. The new wiring.h is in the "MultiWii_2_1_energia_mod_systick_serial.zip", you also have to patch startup_gcc.c and...
by gompf-2
Sun Feb 24, 2013 4:49 pm
Forum: Boards
Topic: Stellaris Cortex M4F (preorder for september, 4.99$)
Replies: 140
Views: 22081

Re: Stellaris Cortex M4F (preorder for september, 4.99$)

Last problem....
Energia´s analogWrite doesn´t work correctly if called with a delay<100ms. At first I thought I broke something due to changes in wiring.c/IRQs but it´s the same with a virgin package. Have to implement the 24bit-pwm code to energia now....
by gompf-2
Sun Feb 24, 2013 11:27 am
Forum: Software development
Topic: UART Radio project
Replies: 112
Views: 20692

Re: UART Radio project

Hi Sebbi, And to top it off, from 2014 on 433 MHz can't be used for voice or data transmissions anymore I dropped the OpenLRS stuff I build because of this, but I yet found "Die Bundesnetzagentur hat am 24. November 2010 eine neue Allgemeinzuteilung für sog. "Short Range Devices" (SRD...
by gompf-2
Sat Feb 23, 2013 1:58 am
Forum: Software development
Topic: MultiWii dev1342 issues
Replies: 21
Views: 1467

Re: MultiWii dev1342 issues

Can you also check the I2C bus with an Oszi? Not arming can also be a symptom of "gyro not found" iirc. The original specs want 3mA pullup current on the I2C iirc, not implemented on any board I´ve seen so far and mostly not a problem if you keep close to the bus master. But if you added s...
by gompf-2
Thu Feb 21, 2013 1:35 am
Forum: Boards
Topic: Stellaris Cortex M4F (preorder for september, 4.99$)
Replies: 140
Views: 22081

Re: Stellaris Cortex M4F (preorder for september, 4.99$)

Ok, got it so far... MultiWii_2_1_energia_mod_systick_serial.zip http://s14.directupload.net/images/130221/temp/rgsaj764.jpg Problem with the serial was clear after I found this comment in energia´s Hardwareserial.c for lm4f: // If the character to the UART is \n, then add a \r before it so that // ...
by gompf-2
Tue Feb 19, 2013 4:17 pm
Forum: Boards
Topic: Stellaris Cortex M4F (preorder for september, 4.99$)
Replies: 140
Views: 22081

Re: Stellaris Cortex M4F (preorder for september, 4.99$)

Hi, nothing new about baseflight but I did some tests with Energia: newer file next post It´s an ugly try of a cut down port of MW2.1 but at least it shows that aBUGSworstnightmare´s driver is basically working. PPM SUM RX works nearly out of the box, I altered the drivers for ITG3200 and ADXL345 an...
by gompf-2
Wed Feb 13, 2013 8:19 pm
Forum: Boards
Topic: Stellaris Cortex M4F (preorder for september, 4.99$)
Replies: 140
Views: 22081

Re: Stellaris Cortex M4F (preorder for september, 4.99$)

oh comeon. I use leadfree on everything and have zero issues. MicroUSB connectors are just shit, plain and simple. Especially SMD ones. I've never had a problem with through-hole USB Mini-B coming off a board (without taking half the board with it). Regarding to the mechanical construction I agree,...
by gompf-2
Tue Feb 12, 2013 12:08 am
Forum: Boards
Topic: Stellaris Cortex M4F (preorder for september, 4.99$)
Replies: 140
Views: 22081

Re: Stellaris Cortex M4F (preorder for september, 4.99$)

I'm willing to continue to help, and I'll try to investigate these issues later, but do not expect me to do everything alone, it's just a hobby and my job already takes me a lot of time... No problem, family comes first, then job, then fun. As sad as it is sometimes I have the same problem... I was...
by gompf-2
Sun Feb 10, 2013 9:13 pm
Forum: Boards
Topic: Naze32 hardware discussion thread
Replies: 3249
Views: 617958

Re: Naze32 hardware discussion thread

Hi, naze32_rev1.pdf, p8, CLI Entering CLI Mode, type 'exit' to return, or 'help' # set Current settings: deadband = 0 yawdeadband = 0 alt_hold_throttle_neutral = 20 midrc = 1500 minthrottle = 1150 maxthrottle = 1850 mincommand = 1000 mincheck = 1100 maxcheck = 1900 retarded_arm = 0 failsafe_delay = ...
by gompf-2
Sun Feb 10, 2013 8:43 pm
Forum: Boards
Topic: Stellaris Cortex M4F (preorder for september, 4.99$)
Replies: 140
Views: 22081

Re: Stellaris Cortex M4F (preorder for september, 4.99$)

Seems we´ve still some problems with the I2C/command line makefile... (don´t take it wrong, vdjc, you did an outstanding job). I tried to get it to work with ITG3200 (with modified DRV_MPU3050 sources) and ADXL345 (as I´m still waiting for my chinese IMU and didn´t wont to rip my flying copter apart...
by gompf-2
Sun Feb 10, 2013 2:28 pm
Forum: Boards
Topic: Stellaris Cortex M4F (preorder for september, 4.99$)
Replies: 140
Views: 22081

Re: Stellaris Cortex M4F (preorder for september, 4.99$)

Thanks for the fast fix!
by gompf-2
Sun Feb 10, 2013 11:07 am
Forum: Boards
Topic: Stellaris Cortex M4F (preorder for september, 4.99$)
Replies: 140
Views: 22081

Re: Stellaris Cortex M4F (preorder for september, 4.99$)

Hi, thanks for your code, vdjc. I used command line to compile and I changed the Makefile to output a binary instead of a hex file so I could use TI's flash utility to burn it. I tried the same, build process itself looks fine but only get a nearly empty hex/bin. 1st drawback of the platform: As I´m...
by gompf-2
Fri Feb 08, 2013 9:02 pm
Forum: Boards
Topic: Stellaris Cortex M4F (preorder for september, 4.99$)
Replies: 140
Views: 22081

Re: Stellaris Cortex M4F (preorder for september, 4.99$)

Yes, just wanted to write that...
Pass-Through Mode: The MPU-60X0 directly connects the primary and auxiliary I2C buses together, allowing the system processor to directly communicate with any external sensors.
by gompf-2
Fri Feb 08, 2013 8:37 pm
Forum: Boards
Topic: Stellaris Cortex M4F (preorder for september, 4.99$)
Replies: 140
Views: 22081

Re: Stellaris Cortex M4F (preorder for september, 4.99$)

By using the aux the MPUs DMP core has access to the sensor, but according to some posts regarding the DMP it´s not useful for us. It would have been more easy to have the MAG just on the same bus for the start and don´t have to mess around with the aux code for the MPU. But we´ll see what vdjc can ...
by gompf-2
Fri Feb 08, 2013 7:18 pm
Forum: Boards
Topic: Stellaris Cortex M4F (preorder for september, 4.99$)
Replies: 140
Views: 22081

Re: Stellaris Cortex M4F (preorder for september, 4.99$)

Thanks, too. Ok, MPU and Baro on I2C0, Mag at MPUs AUX. I have not tried the bus scan yet, that's this right? Correct. I put it together with some other stuff into a CCS-project, in case you use CCS just uncomment busscan in the main file: http://www.multiwii.com/forum/viewtopic.php?f=22&t=2376&...
by gompf-2
Fri Feb 08, 2013 8:15 am
Forum: Boards
Topic: Stellaris Cortex M4F (preorder for september, 4.99$)
Replies: 140
Views: 22081

Re: Stellaris Cortex M4F (preorder for september, 4.99$)

FYI, I use crossworks to build the project, so you'll need either to get a trial version, either to convert it to your prefered IDE... I don't have much time to do it (work, children...) so I hope others will improve the code. I would like to convert it to Code Composer Studio and try my best. The ...
by gompf-2
Thu Feb 07, 2013 10:37 am
Forum: Boards
Topic: Stellaris Cortex M4F (preorder for september, 4.99$)
Replies: 140
Views: 22081

Re: Stellaris Cortex M4F (preorder for september, 4.99$)

vdjc wrote:So, what's your goal? You want to port baseflight on the launchpad?

Me, too. The FreeRTOS code would be also interesting.
by gompf-2
Mon Feb 04, 2013 11:34 pm
Forum: Boards
Topic: Stellaris Cortex M4F (preorder for september, 4.99$)
Replies: 140
Views: 22081

Re: Stellaris Cortex M4F (preorder for september, 4.99$)

If you supply the rest of the baseflight/MW code adapted to the launchpad the basic code for sensors should be quite easy ... we´ve seen some results here but "aBUGSworstnightmare" seems to be one of the few ones sharing his results. I would buy his product and I could afford, but my hobby...
by gompf-2
Thu Jan 31, 2013 10:18 pm
Forum: Boards
Topic: Stellaris Cortex M4F (preorder for september, 4.99$)
Replies: 140
Views: 22081

Re: Stellaris Cortex M4F (preorder for september, 4.99$)

Hi ZeWaren, thanks for the flowers but I have to share them with "vdjc", I just refined his code. If needed you can safe some flash by using "rom_"-calls (have a look at the work of aBUGSworstnightmare http://forum.stellarisiti.com/topic/417-i2c-with-stellaris-lm4f120h5qr-working...
by gompf-2
Tue Jan 15, 2013 7:14 pm
Forum: General discussions
Topic: MultiWii PRO Flight Controller w/MTK GPS Module from hobbyki
Replies: 13
Views: 22440

Re: MultiWii PRO Flight Controller w/MTK GPS Module from hob

Hi, if you used only the usb port to power the board at the 1st try you shoud be lucky as normaly the mainboard is fused/fast enough in case of short (I always use the hub of my keyboard because it´s <100mA). I don´t know the FW-version on the MTK they ship/how bright the LED shoud be, have you wait...
by gompf-2
Mon Jan 07, 2013 6:04 pm
Forum: Ideas
Topic: Brushless direct drive GIMBAL - big revolution for a few $
Replies: 84
Views: 48499

Re: Brushless direct drive GIMBAL - big revolution for a few

Nice catch, dr.tom, thanks for pointing to this before I dump all this boxex with CDR-Drives and "Conrad-BL"-parts my wife told me to dump during the new year cleanup. (because not touched for 5+ years, the boxes of course Now I see a big recycling event on the horizon . For a single chann...
by gompf-2
Thu Dec 20, 2012 8:18 pm
Forum: ESCs, propellers , servos and radios
Topic: ESC works on 2s but not on 3s
Replies: 1
Views: 307

Re: ESC works on 2s but not on 3s

Hi, I think you have a broken FET in one of the 3 H-bridges or a dead fet control circuite. Seems it´s running on 2 phases and triggers current/voltage limit when powered on 3s. Can you compare the idle/50%/100% throttle current at 2s for the dodgey and a good one? (if you have basic electronic know...
by gompf-2
Mon Dec 03, 2012 9:24 pm
Forum: Software development
Topic: Raspberry Wii
Replies: 19
Views: 2510

Re: Raspberry Wii

But another BUT, now Linux is suppose to be able to handle Realtime processing: m Now? I build an EMC2-Mill ~2009 and this was state of the art The RasPI is very nice board, sadly I got v1 with only 256MB RAM and no mounting holes, but its fine for RaspBMC (and was widely available a few month ago....
by gompf-2
Thu Nov 29, 2012 10:27 am
Forum: Boards
Topic: Stellaris Cortex M4F (preorder for september, 4.99$)
Replies: 140
Views: 22081

Re: Stellaris Cortex M4F (preorder for september, 4.99$)

So in terms of the headers, should I just offer a soldered and un-soldered version? One-sided female. From the mechanical side of view this would make sence as the Stellaris offers 2 mounting options and the double sided headers are expensive and bulky. But when you have the mag onboard you may hav...
by gompf-2
Wed Nov 28, 2012 6:12 pm
Forum: Boards
Topic: Stellaris Cortex M4F (preorder for september, 4.99$)
Replies: 140
Views: 22081

Re: Stellaris Cortex M4F (preorder for september, 4.99$)

What are the drawbacks of using timer extenders? Don´t know big ones. I just checked pairwaise operation -> fine. Some more lines of code for bit shifting shoudn´t be to critical at 80MHz and 24bit are enough for a minimal frequ of 4Hz;). I haven´t checked the datasheet now for security issues (syn...
by gompf-2
Wed Nov 28, 2012 6:04 pm
Forum: Boards
Topic: Stellaris Cortex M4F (preorder for september, 4.99$)
Replies: 140
Views: 22081

Re: Stellaris Cortex M4F (preorder for september, 4.99$)

Mounting the MCU board on top just seems to be sensefull as you can keep the LED/buttons accessible + the chance of suitable mounting solution. I woudn´t go for double sided headers also, just a double pin row to plug in the MCU board. All pins are still accessible on the Stellaris' top rows where y...
by gompf-2
Wed Nov 28, 2012 4:26 pm
Forum: Boards
Topic: Stellaris Cortex M4F (preorder for september, 4.99$)
Replies: 140
Views: 22081

Re: Stellaris Cortex M4F (preorder for september, 4.99$)

Hi,
WT4 isn´t on the booster pack connector (PD4/PD5->USB), WT0,1,5 share pins with USART2-4. I woud prefer to safe the serials for GPS/OSD/further extensions. Most of the 16/24 bit timer outputs are shared with ADC/SSI so Imho we shoud try to use them to keep coms open.
by gompf-2
Wed Nov 28, 2012 12:50 pm
Forum: Boards
Topic: Stellaris Cortex M4F (preorder for september, 4.99$)
Replies: 140
Views: 22081

Re: Stellaris Cortex M4F (preorder for september, 4.99$)

There's no PWM module, but timers have a PWM mode, so it should not be necessary to use some background code. I finally managed to make it work. The issue was that in PWM mode, the precaler does not works as a true prescaler, but as a timer extender (16bits to 24bits counter). Hi, thanks and small ...
by gompf-2
Fri Nov 16, 2012 11:08 am
Forum: General discussions
Topic: Senors locking up and i2c errors
Replies: 11
Views: 1470

Re: Senors locking up and i2c errors

Hi, Now some of the smds even look more aligned then when I received the board as well. That´s a perfect sign that there was a failure in the production process. They shoud always align to the pads due to surface tension of the molten solder, what you discribed showes that you got a board full of co...
by gompf-2
Thu Nov 08, 2012 10:14 pm
Forum: ESCs, propellers , servos and radios
Topic: Alternative ESC firmware (reflashing)
Replies: 640
Views: 134011

Re: Alternative ESC firmware (reflashing)

Sure,
for Mega8 with AVR pocket programmer this did the job for me:

UnLock
[path]\avrdude.exe -C [path]\avrdude.conf -p m8 -P usb -c usbtiny -U lock:w:0x3F:m

Lock
[path]\avrdude.exe -C [path]\avrdude.conf -p m8 -P usb -c usbtiny -U lock:w:0x0F:m

Regards,
gompf
by gompf-2
Thu Nov 08, 2012 6:04 pm
Forum: Software
Topic: one shot PWM with STM32 possible?
Replies: 1
Views: 877

Re: one shot PWM with STM32 possible?

Hi, as you can use a fixed cycletime of something like 2.1 ms it should be much more easy. I don´t get the point? If you use a fixed cycle time I think you loose the advantage of the methode. It only makes sence if the cycle time is bigger than the pwm periode. In this case normal pwm methode reload...
by gompf-2
Thu Nov 08, 2012 5:21 pm
Forum: ESCs, propellers , servos and radios
Topic: Alternative ESC firmware (reflashing)
Replies: 640
Views: 134011

Re: Alternative ESC firmware (reflashing)

Hi crashlander IMHO: it looks like actual flash for ESC overwrites part of rootloader!? This happens if you don´t write the lockbits for the bootloader section after writing the bootloader, have a look at the boards.txt of arduino for Mega8 boards: atmega8.bootloader.unlock_bits=0x3F atmega8.bootloa...
by gompf-2
Wed Oct 31, 2012 10:38 am
Forum: Boards
Topic: ST INEMO-M1 system on board
Replies: 6
Views: 1498

Re: ST INEMO-M1 system on board

Hi
haley0918 wrote:Though there's no normal I/O pins available.

?It has all needed for a basic Quad, hardware timers are broken out, ADCs/I2C/USARTs also, check page 3 of DM00046903.pdf.
Looks like the smallest complete flightcontrol if someone brings baseflight to it.

Regards,
gompf