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JETI Support for MP32 + Oilpan IMU

Posted by Thomas Bredehorn on May 6, 2011 at 9:02am in Software Framework Autopilot - IMU

I'm owner of a MX16s Remote Control with JETI sender/receiver (main usage: my Hexakopter from mikrokopter)

Now I want to integrate the same nice telemetrie functions for the MP32 Ardupirate software.

My question is: is anyone at work with something like that?

(To realise the function, at first there has to be a new library, because JETI uses an untypical data protokoll)

 

 

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Replies

  • Roberto Navoni May 19, 2011 at 9:55pm

    Hi Thomas,

    I recived my Jeti Duplex , try with your patch and all work fine.

    Are you decide what kind of approach for work with jetibox ? My idea is to check the SoftSerial lib and evaluate it for setup of quad , so is not so important the performance of micro in that situation.

    Best

    Roberto

    • Thomas Bredehorn > Roberto Navoni May 19, 2011 at 10:45pm

      Yes, if we accept to loose some performance, a soft uart should work.

      I attached my 'main.c' which Includes my Jeti experimental code.

      By replacing the standard UART with the Soft Uart this should work.

      This weekend I would not have much time for development, because my wife is 3 days in munich,

      and my son want's my full attention  :)

      By the way, i've some problems to modify my PID settings. Seems that the program is crashing while parsing the floating point ascii values. Do you have any similar experiences?

      And the other question, which Setting you are using ? (only to have an idea in which are I have to work)

       

      main.c

  • Roberto Navoni May 10, 2011 at 12:10pm

    @Thomas,

    i saw that you change the Outputch in map from 32000 64000 to 16000 32000 , why ?

    Best

    Roberto

    • Thomas Bredehorn > Roberto Navoni May 10, 2011 at 7:01pm

      Hi Roberto,

       

      Sorry, I forgot to restore the old values there. These are the changes I made while working on the PWM Period/Duty settings for my Turnigy BLMC's. I set the Prescaler of the timer to 2 (formerly 1),

      so the remap of the the output values have to change too.

      These are only temporary changes so please ignore them,

      the PPM SUM Receiver changes are only from line 186 to line 233.

       

      best regards

      Thomas

       

  • Roberto Navoni May 6, 2011 at 12:08pm

    Hi Thomas,

    there're some code available on the net and some project available for Ardupilot project this is a link that i found : http://diydrones.com/profiles/blogs/using-jeti-telemetrie-as

    The protocol is an 1 wire n91 serial protocol. The next week i will recived jeti box from pipposoft because he is interesting to this kind of implementation,too.

    Best

    Roberto

    • Thomas Bredehorn > Roberto Navoni May 6, 2011 at 8:34pm

      Thank you Roberto,

       

      Very usefull samplecode there (with detailed explanation). So now I've to check the debug ability of my present Eclipse/OpenOCD/OlimexJTag konfiguration. Works with a NXP1768, so it should do with the STM too. If I've some success I will post it here (may take some time because the weather here in north germany is so good, and my family demands some attention)

       

      Thomas

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