HAL Class Reference

#include <HAL.h>

Public Member Functions
	HAL ()
virtual	~HAL ()
Static Public Member Functions
static void	hwSetup (void)
static uint16_t	integerSqrt (long a)
static long	Div4U2U (unsigned long a, unsigned int b)
	Optimized division.
static unsigned long	U16SquaredToU32 (unsigned int val)
static unsigned int	ComputeV (long timer, long accel)
static unsigned long	mulu16xu16to32 (unsigned int a, unsigned int b)
static unsigned int	mulu6xu16shift16 (unsigned int a, unsigned int b)
static void	digitalWrite (uint8_t pin, uint8_t value)
static uint8_t	digitalRead (uint8_t pin)
static void	pinMode (uint8_t pin, uint8_t mode)
static long	CPUDivU2 (unsigned int divisor)
	approximates division of F_CPU/divisor
static void	delayMicroseconds (unsigned int delayUs)
static void	delayMilliseconds (unsigned int delayMs)
static void	tone (uint8_t pin, int duration)
static void	noTone (uint8_t pin)
static void	eprSetByte (unsigned int pos, uint8_t value)
static void	eprSetInt16 (unsigned int pos, int16_t value)
static void	eprSetInt32 (unsigned int pos, int32_t value)
static void	eprSetFloat (unsigned int pos, float value)
static uint8_t	eprGetByte (unsigned int pos)
static int16_t	eprGetInt16 (unsigned int pos)
static int32_t	eprGetInt32 (unsigned int pos)
static float	eprGetFloat (unsigned int pos)
static void	allowInterrupts ()
static void	forbidInterrupts ()
static unsigned long	timeInMilliseconds ()
static char	readFlashByte (PGM_P ptr)
static void	serialSetBaudrate (long baud)
static bool	serialByteAvailable ()
static uint8_t	serialReadByte ()
static void	serialWriteByte (char b)
static void	serialFlush ()
static void	setupTimer ()
static void	showStartReason ()
static int	getFreeRam ()
static void	resetHardware ()
static void	spiBegin ()
static void	spiInit (uint8_t spiRate)
static uint8_t	spiReceive (uint8_t send=0xff)
static void	spiReadBlock (uint8_t *buf, size_t nbyte)
static void	spiSend (uint8_t b)
static void	spiSend (const uint8_t *buf, size_t n)
static	__attribute__ ((always_inline)) void spiSendBlock(uint8_t token
static unsigned char	i2cStart (unsigned char address)
static void	i2cStartWait (unsigned char address)
static void	i2cStop (void)
static unsigned char	i2cWrite (unsigned char data)
static unsigned char	i2cReadAck (void)
static unsigned char	i2cReadNak (void)
static void	startWatchdog ()
static void	stopWatchdog ()
static void	pingWatchdog ()
static float	maxExtruderTimerFrequency ()
static void	analogStart ()

---

Constructor & Destructor Documentation

HAL

(

)

~HAL

(

)

[virtual]

---

Member Function Documentation

static __attribute__

(

(always_inline)

)

[inline, static]

static void allowInterrupts

(

)

[inline, static]

void analogStart

(

)

[static]

static unsigned int ComputeV	(	long	timer,
		long	accel
	)		[inline, static]

long CPUDivU2

(

unsigned int

divisor

)

[static]

approximates division of F_CPU/divisor

In the stepper interrupt a division is needed, which is a slow operation. The result is used for timer calculation where small errors are ok. This function uses lookup tables to find a fast approximation of the result.

static void delayMicroseconds

(

unsigned int

delayUs

)

[inline, static]

static void delayMilliseconds

(

unsigned int

delayMs

)

[inline, static]

static uint8_t digitalRead

(

uint8_t

pin

)

[inline, static]

static void digitalWrite	(	uint8_t	pin,
		uint8_t	value
	)		[inline, static]

static long Div4U2U	(	unsigned long	a,
		unsigned int	b
	)		[inline, static]

Optimized division.

Normally the C compiler will compute a long/long division, which takes ~670 Ticks. This version is optimized for a 16 bit dividend and recognises the special cases of a 24 bit and 16 bit dividend, which offen, but not always occur in updating the interval.

static uint8_t eprGetByte

(

unsigned int

pos

)

[inline, static]

static float eprGetFloat

(

unsigned int

pos

)

[inline, static]

static int16_t eprGetInt16

(

unsigned int

pos

)

[inline, static]

static int32_t eprGetInt32

(

unsigned int

pos

)

[inline, static]

static void eprSetByte	(	unsigned int	pos,
		uint8_t	value
	)		[inline, static]

static void eprSetFloat	(	unsigned int	pos,
		float	value
	)		[inline, static]

static void eprSetInt16	(	unsigned int	pos,
		int16_t	value
	)		[inline, static]

static void eprSetInt32	(	unsigned int	pos,
		int32_t	value
	)		[inline, static]

static void forbidInterrupts

(

)

[inline, static]

int getFreeRam

(

)

[static]

static void hwSetup

(

void

)

[inline, static]

unsigned char i2cReadAck

(

void

)

[static]

unsigned char i2cReadNak

(

void

)

[static]

unsigned char i2cStart

(

unsigned char

address

)

[static]

void i2cStartWait

(

unsigned char

address

)

[static]

void i2cStop

(

void

)

[static]

unsigned char i2cWrite

(

unsigned char

data

)

[static]

uint16_t integerSqrt

(

long

a

)

[static]

static float maxExtruderTimerFrequency

(

)

[inline, static]

static unsigned long mulu16xu16to32	(	unsigned int	a,
		unsigned int	b
	)		[inline, static]

static unsigned int mulu6xu16shift16	(	unsigned int	a,
		unsigned int	b
	)		[inline, static]

static void noTone

(

uint8_t

pin

)

[inline, static]

static void pingWatchdog

(

)

[inline, static]

static void pinMode	(	uint8_t	pin,
		uint8_t	mode
	)		[inline, static]

static char readFlashByte

(

PGM_P

ptr

)

[inline, static]

void resetHardware

(

)

[static]

static bool serialByteAvailable

(

)

[inline, static]

static void serialFlush

(

)

[inline, static]

static uint8_t serialReadByte

(

)

[inline, static]

static void serialSetBaudrate

(

long

baud

)

[inline, static]

static void serialWriteByte

(

char

b

)

[inline, static]

void setupTimer

(

)

[static]

void showStartReason

(

)

[static]

static void spiBegin

(

)

[inline, static]

static void spiInit

(

uint8_t

spiRate

)

[inline, static]

static void spiReadBlock	(	uint8_t *	buf,
		size_t	nbyte
	)		[inline, static]

static uint8_t spiReceive

(

uint8_t

send = 0xff

)

[inline, static]

static void spiSend

(

uint8_t

b

)

[inline, static]

static void spiSend	(	const uint8_t *	buf,
		size_t	n
	)		[inline, static]

static void startWatchdog

(

)

[inline, static]

static void stopWatchdog

(

)

[inline, static]

static unsigned long timeInMilliseconds

(

)

[inline, static]

static void tone	(	uint8_t	pin,
		int	duration
	)		[inline, static]

static unsigned long U16SquaredToU32

(

unsigned int

val

)

[inline, static]

---

The documentation for this class was generated from the following files:

• src/ArduinoAVR/Repetier/HAL.h
• src/ArduinoAVR/Repetier/HAL.cpp