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@pstimpel: The solution given above can slow the inner motor down to 0. Here comes a more advanced setup that can drive the inner motor to full reverse speed. This is what I have for a 2 motor ship, but in the endeffect does the same for a bagger or a tank. But in the moment this setup is for a mode...

Try the following: CH01 -100% RUD * +100% THR (This is a multiply mix!!) +100% THR Curve(c9) CH02 +100% RUD * +100% THR (This is a multiply mix!!) +100% THR Curve(c9) Curve C9 100, 67, 33, 0,0,0,-33, -67, -100 The curve is not required, but gives you a wide dead zone around neutral, so that both mot...

one first trial could be:load the V-tail template.

Reinhard

Reversing a direction is either done in the limits menu (NOR/INV) or in a mix by changing the sign of an amount e.g. +100% => -100%

I installed this code

You could try flashing "ersky9xs_rom.bin" (the "small" version for the SKY board).

AND IT WORKED !!!

Thanks Mike,

Reinhard

But this is the second option.. (When we hold the trimms, just opposite than firmware update)

No, that didn't work either.

It was absolutely stuck in the "flash firmware" loop.

Reinhard

Thanks Mike, I will try that and report back. In the meantime, in the intent to narrow down the problem I flashed the AR9x bootloader 3.2 onto one of my two 9XR-Pro's And now the 9xr-Pro has that same problem of looping . But with the difference, that I'm not able to anymore get into the maintenance...

I used the same source code and compiled it for the 9XR-Pro.
And then updated the bootloader from that firmware file. The resultant bootloader on the 9XR-Pro was version 3.0. versus 3.2 on the AR9x.
And the 9XR-Pro had no problem with it.
Either version 3.2 or/and the AR9x has the problem.

Reinhard

Not in a hurry.
As long as bootloader 2.9 does its job, there is no problem.

Reinhard

I just ran into the following problem. Yesterday I downloaded the latest code from github and compiled it for 9XR Pro and for the AR9x board. So far everything ok. Firmware is running. I recognized, that the AR9x had a bootloader version 2.9 so I flashed the bootloader from my actual fw image. It th...

Thanks for the answer, Mike. I'm trying to revive a multiplex Cockpit SX transmitter with a dead mainboard. It has a built in scroll switch that I will try to use. But for ease of handling its probably the safest way, if I can manage to have a 5-way tactile switch in addition to the existing scroll ...

With a basic 9x radio (with M128) , when using a simple scroll switch (scrolling plus one single switch) like this one https://openrcforums.com/forum/download ... &mode=view
is it possible to handle all menues or do I need additional switches ?

Reinhard

Yes, that is the correct one.

And... Chip-Quik is a really good thing for removing the old chip.

Reinhard

At least use an M128A (that's even cheaper than the M64)

Reinhard

If you use the stock rf module, maybe this picture can help you to check the voltages.
There is one more regulator (3.3V) on the rf board
https://www.rcgroups.com/forums/attachm ... id=4444012

Reinhard

In the mixer setup there is the "Multiplex" selection with "ADD", "Multiply" and "Replace"

Select "Replace" and it will show the line with ":=" instead of "+="

Reinhard

These two mixes must be of type "Replace", not "ADD"
+= 100 Ail L02
+= -100 Ail L03

Reinhard

Edit your er9x.hex file with a simple editor e.g. "Write" and verify the two lines I pasted in the above post.
Only to verify, if your file is the same as ours (at least at that position of the file).

Reinhard

I would download the code again. The error message says, avrdude detected a CRC error in line 1374 of er9x.hex (the last byte in a line is the CRC check byte of the databytes of that line) 1374 is hex 55E so either the line that starts with :1055D or the next line :1055E should be the line that forc...

I'm getting some compile errors for AR9x and 9XRpro with the latest download. File sTxsplash.lbm is missing (rename the s9xsplash.lbm as a fix) In the "Makefile" I had to remove line 878 ("pxx2.cpp \") (There is no pxx2.cpp file in my download). After that, it compiled without any further problems R...

I think the best "grayscale like" images I got when I converted the colour image into a 16 colour scale image, from there into a grey scale image and then into black and white.

Reinhard

Convert it to a bitmap and reduce the size to 128x64 pixels
And then convert it from color to black and white
gives something like this.

Reinhard

I checked the mixes once more and I believe they do what you want. I assume you have a working eePe / eePSky or Companion The attached file contains a parachute model for eePe and one for companion (tried it on eePe and on Companion V2.0 and V2.1) On eePe/eePSky load it with "File" - "Load model set...

Try this, if it does what you need. This is with ER9x, so it should be poosible with all systems CH01 +100% Ail +100% Ail * +100% Ch3 // Multiply +100% Thr CH02 -100% Ail -100% Ail * +100% Ch3 + 100% Thr Ch3 +100% Thr Curve(C1) Curve c1: 100 75 50 75 100 Reinhard

But what about a similar board with the STM32F103C8T6 that has 64k flash and 32k SRam like
https://www.ebay.de/itm/1-2-5-10PCS-STM ... DRyN79HJuQ

Reinhard

try the following:
CH7 100% CH7
R CH7 100% HALF ID0 slow(u10:d5) // Replace mix
R CH7 -100% HALF ID2 slow(U10:d5) // Replace mix

Reinhard

when my two 9x (ATMEGE 128) are connected to the USBASP programmer, the displays are also blank.

Reinhard

Add the MULTIPY mix to the e.g. throttle channel = channel 3
CH3 100% Thr
* 50% P1 Fix Offset 50 NoTrim !! Multiply

According to the position of P1 your CH3 output will be limited between 0 an 100%

Reinhard

My pro ran 2 1/2 hours without a problem
Display ans sound worked permanently

Reinhard

btw
Wouldn't i be an idea to power down the radio when you have Inactivity timeouts and low battery warning?

0x1e9801 seams to means ATmega 2560 ????

Reinhard

Can you please update Github also ?

Reinhard