Of interest: That different way of displaying the custom screen items I introduced in r2033 for conveniency happens to save a whopping 92 bytes on stock!! I forgot about stock when doing it, and when I remembered I expected it would be the opposite and I'd get a slap...
Might be worth looking if this could be replicated in other places!
Warning!!!
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Be aware this version is in branch and is not supported currently by Companion9x. Whatever you configure will be lost in final version!
Because EEPROM interpretation changes anyway because of higher offset and weight values possible in this branch, I tried to align the bits a little bit different to allow a higher number of GVARS. The code change is nearly flash neutral. It costs only 18 bytes flash, but would us allow to either increase range for weight and offset further, or allow more GVARS.
I set it to 9 for this branch now. Please try and report.
It's very easy now to adjust the GVARS number by changing the constant in myeeprom.h. Just change the MAX_GVARS constant for your build in myeeprom.h in the beginning of the file.
The lower MAX_GVARS the higher is the possible number for weight and offset and vice versa.
That is quite likely too complicated for conversion so we need to agree maximum for GVARS.
Not sure in the moment, but this is a branch only and is just to play with it.
Not sure how Bertrand would like this anyway, so may be removed at all.
I need Bertrand for this change, but also testers.
I removed ex_chans[] array, because I am the opinion it can be easily replaced by chans[].
According history ex_chans was there first, after that chans[] are introduced. Now we can use chans instead of ex_chans and get rid of this part to have savings. I am incorrect?
My tests are all OK. The only area I can imagive this change is influenced are flight phases changes. And only if output channels are used as input. But I think this way is even better. Please test and report.
- Now it should be more unlikely to prevent arithmetic overflows. Please test.
- This change costs about 20 bytes flash
- Unfortunately still not bullet proof. A bullet proof check would cost additionally 100bytes flash, is it worth?
- To get in dangerous areas, both weight and offset needs to be set very high. Without offset no more overruns should occur.
A speed calculation didn't work on stock, should be fixed now. Be aware SPEED is now calculated on the input side. Just to remember was already in earlier version as well.
Found a way to reduce overflow protection and gives 32bytes back. Please test
[stock] Port from a part of Andreas patch relative to timers. Thanks Andreas! It allowed me to implement the configurable beeps for timers at a almost 0 flash cost.
[stock] Port from a part of Andreas patch relative to timers. Thanks Andreas! It allowed me to implement the configurable beeps for timers at a almost 0 flash cost.
This version holds mainly bugfixes and prepares this branch for merge.
Please test and report.
- gvars didn't work for value ranges usually from -100 to 100 (e.g. diff function)
- gvars shown wrong also in models menu (same in trunk as well)
- gbirkus tested ranges with speed optimizations, overruns occured at half range of trunk version. Now this is fixed and a much bigger range can be used. Still overruns possible. Please test.
- ISR 10msec now safe and code optimized.
This change make ISR masking for 10msec call back to the old solution.
Bugfix for throttle time calculation if limits are changed.
Noticed my optimized recalculation routine was wrong.
Now I changed it and recalculation is done on 32bit basis which cause 16bytes more flash.
I also noticed the original version (in trunk) just does recalculation of 10 base. That means for full throttle range there would be only 10 steps noticed if limits are changed. That leads to a very unpresise calculation if your throttle limit do not match these steps.
I can do something similar but this time only with 8 steps but save 16bytes flash.
What's your opinion.
brief:
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* added compile options to makefile:
- CORRECT_NEGATIVE_VALUES
- EXTENDED_EXPO_CURVE
* bugfix for Timer calculation if AUDIO or VOICE was selected for stock and Gruvin
* bugfix for Throttle timer calculation
* small flash savings about 28 bytes if SLOW wasn't moved, now only 20 bytes
* SLOW calculation moved to beginning, but no weight compensation
detailed
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Makefile options:
Like all other options this is set either to YES or NO. Both are default NO.
This gives the user the possibility to choose themselves about which precision they want.
Or if they want a greater EXPO range, both increases code of course. The code changes are explained in detail in source code and earlier version of this branch.
Bugfix for Timer calculation if AUDIO or VOICE was selected for stock and Gruvin
Need again some reports. I noticed there was a correction algorithm activated for 10msec call generated. For some unknown reasons, the correction was disabled, if AUDIO or VOICE was selected. This fix should make it working again. The clock was actually too fast. It's about 5 - 6 seconds per hours. Should be correct now, please test and report.
Also the IRQ disabled the timer IRQ while it is on. This is wrong as well and saved code.
Bugfix for Throttle timer calculation
Actually the throttle calculations leads to an overrun if full throttle was given. Due to -1 calculation problem this issue was not seen, because it was 1 digit smaller. With the CORRECT_NEGATIVE_VALUE option actually the full range was used, and boom, throttle timer didn't work. This fix actually corrects this and made the code about 28 bytes smaller and faster.
SLOW calculation moved to beginning, but no weight compensation
As stated by bsongis I moved the SLOW calculation to the beginning. This matches to most other remote controls. However I still left the weight compensation out. This would cost 90 bytes flash and a slow division. Basically if we move the SLOW feature to the beginning it changes the meaning for SLOW. It is not actually defining the output speed in percentage per second. It is defining the input speed in % per second. In this case a mix with high weight will move faster as a mix with small weight. That's the same for other remote controls as well.
Doing this compromise only costs 8 additional bytes of flash.
bernet.andre@gmail.com