Solve the messy display after Boxer shutdown

[zyren]

Solve the redundant cluttered display on the screen after Boxer is shut down.

[3djc]

Is it all RM radio with f4 ? If yes, it would be more future proof to state those instead of specific radio names ?

[zyren]

Yes, this issue occurs on all F4 radios, including Zorro, TX12MK2, and BOXER. When the radio is turned off, after a while, the screen displays random lines. Please refer to #2155. This issue does not occur on the TX12 of F2.

[3djc]

Then maybe replace by this, so it cover existing and new models:
#if defined(MANUFACTURER_RADIOMASTER) && defined(STM32F407xx)

[zyren]

Okay, I will make the changes and submit a new PR. Is that alright?

#if defined(MANUFACTURER_RADIOMASTER) && defined(STM32F407xx)
        lcdInit();
#endif

[3djc]

You can update this PR, just update the branch and push it, that will update this PR without the need to create a new one :)

[pfeerick]

@3djc Do you think this actually needs to be RM specific? Regardless of the radio, is there any harm in doing this on B&W generally, since it is essentially a screen clear on power off?

[3djc]

Shouldn't be an issue to do it for all radio, but since no one ever reported an issue on the other ones, I tend to think "if it ain't broken, don't fix it". Happy both ways anyway :)

[pfeerick]

Very true. I've actually noticed this on the TX12 (not sure offhand if it was the TX12 or TX12MKII), and have never really thought anything more of it since the radio is powering off. I agree with that philosophy... if someone else suggests it's needed later, it's just a matter of removing the define 🤷 😆