openrcforums

For general information I just ran er9x on a '128 processor and checked the stack usage. The bottom of the stack gets to within about 40 bytes of the end of the data. This is about as low as I'm comfortable with given there may be code that runs and causes the stack to grow even larger. Mike. Hi Mi...

Thanks again Mike. In an attempt to minimize latency I would like to try 9 channels per single stream per frame. With your info and some head scratching I went through what I think are the pulses.cpp patches to stream 9 channels of data. It appears to be working, but I need to do more testing. Sourc...

Yep, that fixed it. Thanks Mike.

Hi, I'm seeing an issue compiling -r816 and -r817 of er9x on an Ubuntu 14.04 machine with fresh svn load. geo@geo-Latitude-D630:~/er9x/src$ svn checkout http://er9x.googlecode.com/svn/trunk/ er9x Checked out revision 817. geo@geo-Latitude-D630:~$ cd er9x geo@geo-Latitude-D630:~/er9x$ cd src geo@geo-...

Hi all, I've been developing an RFM22B based Tx/Rx pair with 2 -way telemetry for use with my TGY 9X. I'd like the Tx to receive er9x command data using the serial based DSM2/DSMX. I've started work on the decoder, should be fairly straight forward. Would it be straight forward to extend the DSM2/DS...

Oops , sorry about that. I did look at that thread (too) quickly and decided it was about the MegaSound board.

Oh well, I learned a bit about bootloaders and AVRDUDE in the process.

Best Regards,
George

Hi, I've learned much from this forum so thought I would post a working mod on my 9X in case it helps others. I like the bootloader feature on my Taranis, and want something similar for my 9X. I also wanted to use already existing connectors if possible, AVRDUDE/eePe compatible. Maybe this already e...

Thanks Mike for your reply.

It appears from your current draw (w/ dip in supply voltage) data that a rising edge on the heartbeat pulse indicates transmission start, and could possibly be used as a trigger for synchronous uC to XJT transmission?

George

I have an XJT module I am installing in a 9X running er9x. Does anyone know what purpose the pin 2 "heartbeat" signal serves? I understand it is an open collector output with a 500 ohm resistor in series with the transistor collector (documented here: http://openrcforums.com/forum/viewtopi...

Hi,

Is there an action required to switch S.Port into High Capacity mode (mode 2), one-way and/or two-way? The SP2UART manual seems to imply this, but I can find no documentation supporting mode switching.

Thanks,
George

Kilrah,

Very interesting and helpful. Thanks for updating it!

Best Regards,
George

Hello,

Has anyone heard of any PXX updates?

Thanks,
George

The thread in question has indeed been moved to a private section. That is dissapointing. Any chance of gaining authorization? I am hoping to contribute to this thread http://www.rcgroups.com/forums/showpost.php?p=21906292&postcount=99 and any threads here on FrSky protocol. I have an ATMega328...

I am trying to view the following thread: http://openrcforums.com/forum/viewtopic.php?f=52&t=667 I get the following: Information You are not authorised to read this forum. Is there an extra level of authorization needed for certain threads? How would I go about requesting this authorization? Th...

Open script file "domake" in root directory to see the flags needed to build individual hex versions. Example from "domake" for FRSKY: echo echo "===== Making FRSKY Version =====" echo ">>> cleaning" make clean echo ">>> making" make EXT=FRSKY TEMPLA...

Perfect. Thanks for the help Mike.

Best Regards,
George

Mike,

Thanks, er9x builds right through now on. So adding Ruby to my build environment was my only real change.

domake and the versioning egrep are the only things that do not work for me then. Are most using Linux?

Thanks again,
George

Hello, I am new to er9x, though not new to developing for AVRs with AVR Studio 4 and gcc. I am attempting to build er9x on a Windows XP machine that has WinAVR-20100110 installed. I've followed the build instructions here http://er9x.googlecode.com/svn/trunk/doc/Compile%20Tutorial.pdf and have been ...

What are you finding the adavantages or disadvantages are for PXX pulse width based protocol vs the serial DSM2 protocol? It would seem that a serial protocol like DSM2 that can use UART hardware support would be less processor intensive?

Warning accepted. I am still a bit confused. Is the PXX module code (the binaries loaded in the FrSky Tx and Rx modules, as opposed to the ATMega code for the 9X transmitter board) unique? I am a assuming it is in order to accept bitstream input in place of PPM. Is it an FrSky product, or did the gr...

Are the FrSky PXX Tx/Rx module loads available to the general public or limited distribution at this point?

Thanks,
George