AN3128 datasheet(16/105 Pages) STMICROELECTRONICS

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Multi-input embedded GUI library

AN3128

16/105

Doc ID 16918 Rev 5

Table 4 shows the ROM usage (Flash memory) of the font sets:

All the graphic objects are allocated dynamically, in a typical application the heap size

should be about 16 KB, and the stack should be about 2 KB.

3.3

Library package

The library was developed supporting Raisonance Ride Kit ARM, IAR the IAR EWARM,

Atollic TrueSTUDIO, Keil MDK-ARM , TASKING VX-toolset for ARM Cortex-M3 and the

related workspace/project files are included in the delivered package.

The “Libraries” folder contains all the subdirectories and files that make up the core of the

library.

Embedded_GUI_HAL contains all files and subdirectories that makes the hardware

abstraction layer (HAL). The developer has to modify only these files if he needs to port the

library to other board with other TSC/LCD/JOYSTICK controller, and set the defined

constant into the file “hw_config.h” contained under the folder

“./Embedded_GUI_Example/inc”:

●

inc: sub-folder contains the HAL header files.

–

LcdHal.h: HAL layer file; contains all the LCD function prototypes whose

implementation depends on the LCD used. The final user should change this file in

order to re-use this library with other LCDs.

–

JoyHal.h: HAL layer file; contains all the joystick function prototypes whose

implementation depends on the joystick controller used by the application. The

user need only change these function implementations in order to re-use this code

with other joystick controllers.

–

TscHal.h: HAL layer file; contains all the touchscreen function prototypes whose

implementation depends on the TSC controller used by the application. The user

need only change these function implementations in order to re-use this code with

other TSC controllers.

–

touchscreen.h: contains all the function prototypes for the touchscreen firmware

driver.

●

src: sub-folder contains the HAL source files.

–

LcdHal.c: HAL layer file; contains all the LCD function declarations whose

implementation depends on the LCD used and the MCU (STM32 for this delivery).

The final user should change this file in order to re-use this library with other

LCDs.

–

JoyHal.c: HAL layer file; contains all the joystick management function

declarations whose implementation depends on the joystick controller used by the

application. The user only needs to change these functions implementations in

order to re-use this code with other joystick controllers.

Table 4.

ROM usage of font sets

Font set

ROM (Flash)

Note

Font 16x24

4.560 bytes

Totally

Font 8x12

2.688 bytes

Totally

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