BUTTON Functions

Functions
void	BSP_PB_Init (Button_TypeDef Button, ButtonMode_TypeDef ButtonMode)
	Configures Button GPIO and EXTI Line.
uint32_t	BSP_PB_GetState (Button_TypeDef Button)
	Returns the selected Button state.
uint8_t	BSP_JOY_Init (void)
	Configures joystick available on adafruit 1.8" TFT shield managed through ADC to detect motion.
JOYState_TypeDef	BSP_JOY_GetState (void)
	Returns the Joystick key pressed.

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Function Documentation

JOYState_TypeDef BSP_JOY_GetState

(

void

)

Returns the Joystick key pressed.

Note:

To know which Joystick key is pressed we need to detect the voltage level on each key output

• None : 3.3 V / 4095
• SEL : 1.055 V / 1308
• DOWN : 0.71 V / 88
• LEFT : 3.0 V / 3720
• RIGHT : 0.595 V / 737
• UP : 1.65 V / 2046

Return values:

JOYState_TypeDef,:

Code of the Joystick key pressed.

Definition at line 322 of file stm32f1xx_nucleo.c.

References hnucleo_Adc, JOY_DOWN, JOY_LEFT, JOY_NONE, JOY_RIGHT, JOY_SEL, and JOY_UP.

uint8_t BSP_JOY_Init

(

void

)

Configures joystick available on adafruit 1.8" TFT shield managed through ADC to detect motion.

Return values:

Joystickstatus

(0=> success, 1=> fail)

Definition at line 297 of file stm32f1xx_nucleo.c.

References ADCx_Init(), hnucleo_Adc, and sConfig.

uint32_t BSP_PB_GetState

(

Button_TypeDef

Button

)

Returns the selected Button state.

Parameters:

Button,:

Specifies the Button to be checked. This parameter should be: BUTTON_USER

Return values:

Button

state.

Definition at line 286 of file stm32f1xx_nucleo.c.

References BUTTON_PIN, and BUTTON_PORT.

void BSP_PB_Init	(	Button_TypeDef	Button,
		ButtonMode_TypeDef	ButtonMode
	)

Configures Button GPIO and EXTI Line.

Parameters:

Button,:	Specifies the Button to be configured. This parameter should be: BUTTON_USER
ButtonMode,:	Specifies Button mode. This parameter can be one of following parameters: BUTTON_MODE_GPIO: Button will be used as simple IO BUTTON_MODE_EXTI: Button will be connected to EXTI line with interrupt generation capability

Return values:

None

Definition at line 247 of file stm32f1xx_nucleo.c.

References BUTTON_IRQn, BUTTON_MODE_EXTI, BUTTON_MODE_GPIO, BUTTON_PIN, BUTTON_PORT, and BUTTONx_GPIO_CLK_ENABLE.