Multiwii and Simonk

[WalkOver]

Hello

Is Multiwii is optimized for SimonK ESC firmware ?
I mean, for the refresh rate ?

Is there anything to setup in the code to enable these optimizations ?

Thank you for your help.

[Peter]

Works great with simonk. You don't have to so anything.

[crashlander]

It should work without issues just set

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#define MINTHROTTLE 1064 // special ESC (simonk)

If you are flashing ESC's by yourself you can also use/try ziss_dm's wii-esc (http://code.google.com/p/wii-esc/) and flash them with extended range (0-2000) and in this case you must also set

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 #define MINCOMMAND  1008 // (**)
#define EXT_MOTOR_RANGE

in MWII
With that you can get very high resolution on Mega2560 based boards and better (than default) on 328p.

With that option (ziss_dm's and probably also SimonK's) you can rise P for roll/pitch to 7 or higher and you will get incredibly stable and smooth flying experience.

Regards
Andrej

[nikosd]

Hi crashlander


How to flash wii-esc to support ext_motor_range ?

when you say "flash them with extended range (0-2000) " you mean edit predifined throttle end points and set ppm working range from 0-2000 or enything else ?

This setting is suitable for tgy.hex (rctimer 30A ESC)

Thanks Nikos

[crashlander]

Hi crashlander
when you say "flash them with extended range (0-2000) " you mean edit predifined throttle end points and set ppm working range from 0-2000 or enything else ?

Yes extended range means to set allowed/valid/useful TH range from 0 to 2000 us instead standard RC 1000-2000.
If you use ziss_dm's flash tool (http://code.google.com/p/wii-esc/downlo ... e&can=2&q=) it is as easy as to select that option from pull-down.
Extended range works on all ESC's (AFAIK).
But be sure to check exact version of your ESC (inside shrink-wrap) since most of ESC's have changed over time (from mix of p and n FET to all n or even MCU change from Atmega to SIL) and kept same label on the outside!

Regards
Andrej

[WalkOver]

Hello,

Thank you for your answer.
I understand how the Simonk firmware is better regarding the range we can change but I would like to know if the multiwii firmware use a better refresh rate thant the standart 50Hz update we use for servomotor for eg.
Is the Multiwii firmware is able to refresh the PPM more faster than 50 Hz ?

Thank you again

[crashlander]

MWII uses 490Hz refresh rate for ESC control.

Regards
Andrej