Hi Dean,

We do have a few commands that allow users to create/modify/delete files and folders on the SD card. I believe these commands are what you need to send asset files to the SD card without removing it from the GTT.

I'll see if I can send you a short example tomorrow.

Cheers,
Daniel

Hi Haz, What is the get_backlight command returning to your host? Also, are the returns consistent? You mentioned that if you remove the get_backlight command and the vTaskDelay, you get an error. I assume this is the I2C lock up you mentioned previously? Also, the gtt_default_communication_channel ...

Hi Haz, We were able to take a look at your project, and we found that two of your labels were not using valid fonts, and their font fields were left blank. Please try pointing to a valid font. That should allow you to deploy your project without receiving any unwanted errors messages. Thanks, Daniel

Hi Dean, I should let you know that the GTT has two different command protocols available. The first protocol is referred to as the GTT20 protocol, or the Legacy Toolset in the GTT Designer. The second protocol is referred to as the GTT25 protocol, but in the GTT Designer, it is set as the default T...

Hi Haz,

I received your project and we're currently looking into what might be causing the issue!

Thanks,
Daniel

Hi Haz, The Set_Communication_Channel command would be included in the post load script on the GTT. That way you wouldn't have to continuously attempt to open communication with the display, and instead the GTT would open communication once the first screen has been loaded. Once the GTT opens commun...

Hi Haz, The best place to find your project Bitmap_IDs is the autoexec.txt file in your GTT project output folder. Near the top of the script, you will find a list of Bitmap_Load() commands, each specifying their own Bitmap_IDs. By referencing both the autoexec.txt file and the project.h file, you'l...

Hi Haz, After talking to a few colleagues, I believe the problem has to do with the while loop that you have in your code. The gtt_parser_process is meant to return asynchronous data, such as touch or keypad inputs. This might be the reason why you aren't receiving the false value you are looking fo...

Hi Haz, Each button has at least 3 bitmaps assigned to it corresponding with the three available states: The Up Bitmap, Down Bitmap, and Disabled Bitmap. You can upload different images to the GTT's RAM, and actively change each of these bitmaps individually using their set_bitmap commands. The Set_...

Hi Haz, As you know, there are only 3 states for buttons. As it's currently implemented, the disabled state will always be a grayed out version of the "Up" state, and we haven't implemented a disabled version of the "Down" state just yet. A possible work around is to generate a b...

Hi Haz, According to the error messages, the GTT Designer cannot find the specified files/paths. The first error states that the Designer can't find the LibraSansModern.ttf font at the path specified. There are two solutions that I can suggest: - You can change the font on all of the objects that us...

Hi Mwagner, I apologize for the delay in response. We have a Linux appnote that may be referenced when creating applications on Linux. The appnote is developed for an LK162-7T display, but you can still take a look at how the communication port is created. You can download our Alphanumeric C Library...

Hi Dean,

The GTT can only be connected to one application at a time. If the GTT is connected to the Support tool, the Designer won't be able to connect properly.

Please try closing the Support App and try connecting to the Designer then.

Cheers,
Daniel

Please note, we have recently found a bug in firmware revision 2.12.0.10217, affecting the drawing area of the display. The bug reduces the total drawing area by 1 row, and 1 column. ie our GTT70A has a 800 x 480 drawing area, but with Firmware 2.12.0.10217 installed, the drawing area is reduced to ...

Hi Dean,

I apologize for the delay.

During your development, are you running both the GTT Support Tool Application, and the GTT Designer at the same time?

Cheers,
Daniel