AN3128 datasheet(85/105 Pages) STMICROELECTRONICS

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AN3128

Multi-input embedded GUI library firmware

Doc ID 16918 Rev 5

85/105

4.6.29

GL_JOY_Interface_Init HAL function

Table 68 describes the GL_JOY_Interface_Init function of the hardware abstraction layer.

4.6.30

GL_JoyStickConfig_IOExpander HAL function

Table 69 describes the GL_JoyStickConfig_IOExpander function of the hardware

abstraction layer.

4.6.31

GL_JoyStickConfig_GPIO HAL function

Table 70 describes the GL_JoyStickConfig_ GPIO function of the hardware abstraction

layer.

Table 68.

GL_JOY_Interface_Init

Name

Description

Function name

GL_JOY_Interface_Init

Function prototype

GL_uint32_t GL_JOY_Interface_Init (void)

Behavior description

Initializes the IO expander registers

Input parameter {x}

None

Output parameter {x}

None

Return value

0: if all initializations are OK

Required preconditions None

Called functions

JOY_IOExpander_Init()

Table 69.

GL_JoyStickConfig_IOExpander

Name

Description

Function name

GL_JoyStickConfig_IOExpander

Function prototype

void GL_JoyStickConfig_IOExpander(void)

Behavior description

Initializes the IO expander for joystick operations

Input parameter {x}

None

Output parameter {x}

None

Return value

None

Required preconditions None

Called functions

None

Table 70.

GL_JoyStickConfig_GPIO

Name

Description

Function name

GL_JoyStickConfig_GPIO

Function prototype

void GL_JoyStickConfig_GPIO(void)

Behavior description

Configures the GPIO ports pins concerned with the joystick.

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