Search found 21 matches

by MGeo
Wed May 13, 2015 10:02 am
Forum: er9x
Topic: er9x development
Replies: 3167
Views: 662469

Re: er9x development

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...
by MGeo
Thu Apr 30, 2015 9:55 am
Forum: er9x
Topic: More Channels for DSM2/DSMX?
Replies: 3
Views: 1581

Re: More Channels for DSM2/DSMX?

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...
by MGeo
Mon Apr 27, 2015 9:18 am
Forum: er9x
Topic: Trouble compiling ER9X for MEGA128 on Linux
Replies: 4
Views: 2102

Re: Trouble compiling ER9X for MEGA128 on Linux

Yep, that fixed it. Thanks Mike.
by MGeo
Mon Apr 27, 2015 12:07 am
Forum: er9x
Topic: Trouble compiling ER9X for MEGA128 on Linux
Replies: 4
Views: 2102

Trouble compiling ER9X for MEGA128 on Linux

Hi, I'm seeing an issue compiling -r816 and -r817 of er9x on an Ubuntu 14.04 machine with fresh svn load. [email protected]:~/er9x/src$ svn checkout http://er9x.googlecode.com/svn/trunk/ er9x Checked out revision 817. [email protected]:~$ cd er9x [email protected]:~/er9x$ cd src [email protected]...
by MGeo
Sun Apr 26, 2015 2:09 pm
Forum: er9x
Topic: More Channels for DSM2/DSMX?
Replies: 3
Views: 1581

More Channels for DSM2/DSMX?

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...
by MGeo
Fri Mar 13, 2015 4:27 pm
Forum: Hardware
Topic: Bootloader for 9X (M128) - Works
Replies: 4
Views: 2123

Re: Bootloader for 9X (M128) - Works

Oops :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
by MGeo
Fri Mar 13, 2015 10:15 am
Forum: Hardware
Topic: Bootloader for 9X (M128) - Works
Replies: 4
Views: 2123

Bootloader for 9X (M128) - Works

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...
by MGeo
Wed Mar 04, 2015 6:08 pm
Forum: Hardware
Topic: XJT Module - Pin 2 Heartbeat -- Purpose???
Replies: 3
Views: 1317

Re: XJT Module - Pin 2 Heartbeat -- Purpose???

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
by MGeo
Wed Mar 04, 2015 11:00 am
Forum: Hardware
Topic: XJT Module - Pin 2 Heartbeat -- Purpose???
Replies: 3
Views: 1317

XJT Module - Pin 2 Heartbeat -- Purpose???

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/viewtopic.php?p=86...
by MGeo
Tue May 20, 2014 10:21 am
Forum: FrSky Taranis radio
Topic: FrSky SPort sensors
Replies: 30
Views: 10140

Re: FrSky SPort sensors

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
by MGeo
Sat Aug 04, 2012 10:08 am
Forum: Feedback
Topic: Can't view a thread, not authorized???
Replies: 7
Views: 3256

Re: Can't view a thread, not authorized???

Kilrah,

Very interesting and helpful. Thanks for updating it!

Best Regards,
George
by MGeo
Sat Jul 28, 2012 11:12 am
Forum: er9x
Topic: PXX work
Replies: 229
Views: 93280

Re: PXX work

Hello,

Has anyone heard of any PXX updates?

Thanks,
George
by MGeo
Sun Jul 22, 2012 9:21 am
Forum: Feedback
Topic: Can't view a thread, not authorized???
Replies: 7
Views: 3256

Re: Can't view a thread, not authorized???

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 ATMega328P / ...
by MGeo
Sat Jul 21, 2012 10:29 pm
Forum: Feedback
Topic: Can't view a thread, not authorized???
Replies: 7
Views: 3256

Can't view a thread, not authorized???

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? Thanks...
by MGeo
Mon Mar 05, 2012 10:33 am
Forum: er9x
Topic: Compiling ER9X Under Windows
Replies: 22
Views: 6953

Re: Compiling ER9X Under Windows

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 TEMPLATES=NO echo ">>> moving" mv er9x.hex ../er9x-frsky...
by MGeo
Sun Mar 04, 2012 1:31 am
Forum: er9x
Topic: Building er9x on Windows
Replies: 6
Views: 2743

Re: Building er9x on Windows

Perfect. Thanks for the help Mike.

Best Regards,
George
by MGeo
Sat Mar 03, 2012 9:09 pm
Forum: er9x
Topic: Building er9x on Windows
Replies: 6
Views: 2743

Re: Building er9x on Windows

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
by MGeo
Sat Mar 03, 2012 5:35 pm
Forum: er9x
Topic: Building er9x on Windows
Replies: 6
Views: 2743

Building er9x on Windows

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 ...
by MGeo
Sat Feb 25, 2012 11:06 am
Forum: er9x
Topic: PXX work
Replies: 229
Views: 93280

Re: PXX work

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?
by MGeo
Sun Feb 05, 2012 10:47 am
Forum: er9x
Topic: PXX work
Replies: 229
Views: 93280

Re: PXX work

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...
by MGeo
Fri Feb 03, 2012 10:15 pm
Forum: er9x
Topic: PXX work
Replies: 229
Views: 93280

Re: PXX work

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

Thanks,
George

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