A user of my
F3J setup recently reported an odd issue with his Taranis X9E: there was no voice confirmation when switching into a particular flight mode. My initial thoughts were that it was an errant sound file.
However it soon became clear that the cause was a bug with the 'FM' switches in OpenTx. Fortunately there's a workaround which I've incorporated in F3J version 3.0.1. The workaround is compatible with all supported transmitters. More details below.
Problem description
In version 3.0.0 of the F3J setup, a track is played when Speed mode (FM7) is engaged. This works fine on the X9D and Horus, however on the X9E it's not possible to specify FM7 - if you try to select it via the user interface, it immediately changes to '!FM7'. An issue has been raised
on Github.
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| SF9 triggered by FM7, but due to a bug it cannot be used with X9E |
The workaround
The workaround involves creating a logical switch (L13) to emulate FM7. It returns TRUE if FM0 - FM6 are all FALSE. In other words, if all flight modes 1 to 6 are not active, then flight mode 7 must be active. (Flight mode 8 is ignored since it's not used in this setup.) When used in a special function, L13 triggers an action on a FALSE to TRUE transition, just like the other FMx switches.
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| L13 emulates buggy FM7. Delay of 0.1 sec suppresses True at startup. |
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| SF9 with FM7 replaced by L13 |
The workaround is incorporated in F3J version 3.0.1.
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