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Index > MobiFlight General > configurar hdg
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Message #19042
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JuanJose1
From: Alcala de Guadaira, Spain
Posts: 45
por que mobiflight al configurar el autopilot HDG da valores negativos
yo
2020-06-21 17:37
Message #19044
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pizman82
Moderator
From: ETSI, Germany
Posts: 6010
Supporter
Hi

Please in English or german only..... Use google Translator if you not speake these language !!!

About your question:

Mostly this is a signed / Unsgined Problem..... For exampe a 1 Byte Offset can have a Value of -128 to +127 OR a value of 0-255

If the Offset is read in wrong way then it show on the upper half a negative value..... Here you need a Compare like IF Value <0 THEN $+256 ELSE $
For a 2 Byte offset it should be IF $<0 THEN $+65536 ELSE $

Please try out !
Good Luck !
2020-06-21 23:39
Message #19049
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RudyB
Posts: 38
This is how I configured HDG:


...
Always have fun!
2020-06-22 13:29
Message #19051
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pizman82
Moderator
From: ETSI, Germany
Posts: 6010
Supporter
iconQuote:

07CC 2 Autopilot heading value, as degrees*65536/360



The standard Heading need normaly a formula to reverse the logic from FSUIPC
Use Transform : $*360/65536

I´m not sure if this solve the Negative Problem already..... If not the needed compare now should be
IF Value <0 (less then zero) THEN $+360 ELSE $
(Thats cause now the result is already degrees but all above 180° is shown as -180...-189...-178 and so on.


NOTE: Interpolation is normaly wrong here. I recommend to not use it in this situation !
Good Luck !
2020-06-22 15:20
Message #19066
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RudyB
Posts: 38
I would hope the interpolation would results in the same mathematics?

When I tested the settings like in the screenshots, HDG worked properly ... it went from 0 >> 359 >> 0 and it also went backwards without negative values.

Of course I can always revert to using the formula if it goes wrong.
Always have fun!
2020-06-23 17:39
Message #19067
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JuanJose1
From: Alcala de Guadaira, Spain
Posts: 45
ok sorry for the language
I will test your solutions, Thanks.
yo
2020-06-23 19:29
Message #19068
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JuanJose1
From: Alcala de Guadaira, Spain
Posts: 45
Thank you very much for everything, it worked perfectly.
yo
2020-06-23 20:14
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Index > MobiFlight General > configurar hdg