Using TivaWare GRLib with TI-RTOS

Yair,

Yair Raz1 said:

1. Has anyone used these devices/drivers in the context of TI-RTOS?

TI-RTOS 1.21.00.09 as a Graphics Lib Demo example for a TM4C123GH6PGE.

Yair Raz1 said:

2. Besides the drivers, does GRLib support the concept of an OS? Do I need to implement a special GUI task that will monitor the widget message queue and respond to events?

I don't think that this example uses Widgets, so I can't say for certain on what problems you might be running into. From looking at the grlib source code, the widget module's message queue and mutex primitives are not implemented to use an RTOS's equivalent APIs so you don't have to implement anything extra.

I hope this helps.

Hi Tom,

Thanks for your email.

The example you are talking about does not use widgets. It is relatively simple, as the input is received from regular pushbuttons, and there is only one task that is responsible for accessing the LCD and drawing on it.

I plan to use the full extent of the library (e.g. widgets and input from touch screen.

Usually in this case (other programming environments), the whole UI has at leas one task that is running the message queue and responsible to dispatch events to the rest of the system. I was wandering if there was any work done to produce a full demo with TI-RTOS and GRLib that demonstrates that.

Regards,

Yair

Yair,

we haven't tried to use any Widgets with TI-RTOS and Graphics Library. I created a tracking ID (SDOCM00106342) to have this feature added into TI-RTOS's Graphic Lib's Demo.

I can try to create a demo myself (as part of learning how to use TI-RTOS with the GRlib). Are there any guidelines you can provide me for this task?

Thanks,

Yair