Previously the logic would only validate whether one or more of the defined flash device types was ready and not examine the user selected blackbox device. Then on reboot during `mscStart()` the logic there would use the selected blackbox device type to decide which mode to operate in. If a flash device wasn't selected the msc initialization failed (like if serial port or "no logging" were selected).
This change only checks the status of the selected blackbox device to ensure that a reboot will properly start mass storage mode.
When using external XJT it annoyingly beeps when A1 drops below 3.7v (72 out of 255). I removed frsky_spi_use_external_adc and added frsky_spi_a1_source = VBAT, EXTADC, CONST. To prevent XJT from beeping ever set CONST and XJT will assume that the "reciever" is powered with 5v. I messed up previous PR #7305 branch so I decided that it's easier to open a new one.
Closes#7297
Adds a new exit/save menu that can be displayed at any time using the yaw-right stick command. Yaw-left still functions as "back".
Allows the user to save their settings even while nested deep in multiple menus. Previously the user was required to back up all the way to the top level menu to save or exit.
Previously the "set" option was only available for aux channels and roll/pitch/yaw/throttle only allowed "auto" (R/P/Y centered, throttle min) and "hold" (hold all channels at previous values). The problem with this is that many pilots wil set the throttle channel to "hold" to avoid a complete drop (and possible motor _stop if configured). This could lead to undesirable behavior if the throttle happened to be at a high value when the signal drop occurred.
With this change the user can set the control channels to a preset value as appropriate during a stage 1 failsafe. For example it may make sense to set the throttle channel to an approximate "hover" value appropriate for that quad to avoid gaining/losing altitude during the initial stage 1 portion of a failsafe.
No changes are made to stage 2 and the existing behavior of DROP, AUTO-LAND, or GPS-RESCUE (if configured) still apply.
Located under the Features top-level menu. Allows configuring the failsafe procedure (like selecting GPS-RESCUE if applicable).
Bounded with `#ifdef USE_CMS_FAILSAFE_MENU` so it can be disabled for space critical targets.
The logic did not support the switched 3D modes and would always set the throttle to `mid_rc`. This is appropriate for normal 3D mode, but for switched 3D modes this would lead to 50% throttle (either positive or negative depending on the switched mode settings).
