IO Utility - LEDs and Keys [IoUtil Functions]

Controlling the LEDs.

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Defines
#define	KEY_GET()   (0)
#define	KEY_INIT()
#define	LED_CLR(ln)   do{}while(0)
#define	LED_GET_VALUE()   0
#define	LED_INIT()   do{}while(0)
#define	LED_MAX_VALUE   ((1<<LED_NUMBER)-1)
#define	LED_NUMBER   (0)
#define	LED_SET(ln)   do{}while(0)
#define	LED_SET_VALUE(x)   do{}while(0)
#define	LED_TOGGLE(ln)   do{}while(0)
#define	LED_VAL(msk, val)   do{}while(0)

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Detailed Description

Controlling the LEDs.

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Define Documentation

#define KEY_GET

(

)

(0)

Reading of the KEY port directly and return the value LSB aligbed.

#define KEY_INIT

(

)

Initialisation of the KEY port

#define LED_CLR

(

ln

)

do{}while(0)

Switch the LED with the number ln OFF.

#define LED_GET_VALUE

(

)

0

Read back the current numeric value from the LED port.

#define LED_INIT

(

)

do{}while(0)

Initialisation of the LED port.

#define LED_MAX_VALUE   ((1<<LED_NUMBER)-1)

Maximum value, that can be displayed on the LEDs

#define LED_NUMBER   (0)

Number of LEDs for this board

#define LED_SET

(

ln

)

do{}while(0)

Switch the LED with the number ln ON.

#define LED_SET_VALUE

(

x

)

do{}while(0)

Display a numeric value on the LED port. The value x is masked out according LED_MASK, so that depending on the number of LEDs of the board the maximum displayed value is LED_MAX_VALUE.

#define LED_TOGGLE

(

ln

)

do{}while(0)

Toggle the LED with the number n.

#define LED_VAL	(		msk,
			val
	)			do{}while(0)

.....