blob: 985e87c3faa803b304c8309e60f74c3e74ee27c0 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
GLCD now uses the GDISP low level drivers and fonts.
To update your make to use this new version:
Add the low level driver yo want to use to your make file. eg.
include $(CHIBIOS)/os/halext/drivers/gdispTestStub/gdisp_lld.mk
There some restrictions that GLCD places on your use of new features and on the capabilities
of the low level driver.
They are:
1/ GLCD requires a driver that supports RGB565 pixel format. This is a
limitation of the GLCD API. To update the API would create compatability
issues with existing applications.
2/ If you want to use the GLCD scroll or the GLCD read-pixel calls then your
low level driver must support them. If it doesn't these calls will
fail.
3/ You cannot reduce the code size like in GDISP by defining macros to
compile out code that you are not using.
4/ Some of the new features of GDISP like right or center justified text are not
supported as there is no equivelant API in GDISP.
5/ There is no mechanism to send hardware specific commands to the low level driver
such as commands to control the back-light.
What it does do that GDISP currently doesn't:
1/ Asynchronous multi-thread support.
|
