T5L Port

[OMGrant]

Hi Desuuuu,

I managed to fully port the firmware over to the T5L Screen that's on the Sermoon D1, Ender 6 and Ender 7, however I'm running into an oddity I'm hoping you or someone else might have a solution to. All the text is appearing off-right and semi-centered. See attached photos.

Any ideas?

Best,
Grant

[Desuuuu]

Alignment is controlled by the host by padding the data with spaces to achieve the desired alignment.

The controls need to be configured to have fixed-width characters and properly sized/placed to achieve the desired result.

Writing full-length strings can be useful to tweak this. Let's say you have a 6-char wide control, testing with AAAAAA, iiiiii, __iiii and iiii__ (_ being spaces) should give you a good idea if the settings are correct.

Placing the controls was honestly a tedious process for me. It mostly involved trial and error to achieve proper sizing/placement.

There's a debug T5UID1 implementation in the firmware which can help a bit with the process. You can also use some sort of serial adapter and the software from DGUS that lets you send commands, but the software isn't super user-friendly.

It is also technically possible to alter display controls directly through serial using what they call stack pointers (SPs), but it's a more complicated process.

[OMGrant]

Alignment is controlled by the host by padding the data with spaces to achieve the desired alignment.

The controls need to be configured to have fixed-width characters and properly sized/placed to achieve the desired result.

Writing full-length strings can be useful to tweak this. Let's say you have a 6-char wide control, testing with AAAAAA, iiiiii, iiii and iiii (_ being spaces) should give you a good idea if the settings are correct.

I understand! Thank you, I'm going to mess around with this a bit.

I have one other question now that that's out of the way. How can I interact with versioning. I had to comment out the piece of code that checks core compatibility in klipper in order to get it to boot to home.

Best,
Grant

[Desuuuu]

For the "core" version, it is specific to the screen model. It is read from a special area in memory. The firmware is provided by DGUS and new versions typically fix bugs or implement new features.

On T5UID1 (at least), this is provided in the form of two binary files (each of them having a specific version). The check is in place because text input did not work properly on older firmware.

For the screen version, it is stored during the flashing process (by the 00_version.lib file) and read from the screen's memory. It is used to check if the features (pages, controls, etc.) used by the firmware are present.

[kencieszykowski]

Hey @OMGrant !

Do you have your code hosted or process anywhere for the T5L? I'll be swapping over from my Marlin build over to this soon:
https://github.com/fryc88/klipper-sv06plus-screen

This screen is a T5L1-- but the port there uses the vertical orientation for the screen. I'd much prefer to print a different mount for my machine and use it in landscape mode like your screenshots depict.

Cheers!