Merge branch 'Marlin_v1' of https://github.com/ErikZalm/Marlin into Marlin_v1
This should fix issues with pull request 467, I hope. Conflicts: Marlin/Configuration.h Marlin/Marlin.pde Marlin/ultralcd_implementation_hitachi_HD44780.h2.0.x
kiyoshigawa
12 years ago
commit
6a81291c57
@ -0,0 +1,341 @@
|
||||
/*
|
||||
Servo.cpp - Interrupt driven Servo library for Arduino using 16 bit timers- Version 2
|
||||
Copyright (c) 2009 Michael Margolis. All right reserved.
|
||||
|
||||
This library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
This library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
/*
|
||||
|
||||
A servo is activated by creating an instance of the Servo class passing the desired pin to the attach() method.
|
||||
The servos are pulsed in the background using the value most recently written using the write() method
|
||||
|
||||
Note that analogWrite of PWM on pins associated with the timer are disabled when the first servo is attached.
|
||||
Timers are seized as needed in groups of 12 servos - 24 servos use two timers, 48 servos will use four.
|
||||
|
||||
The methods are:
|
||||
|
||||
Servo - Class for manipulating servo motors connected to Arduino pins.
|
||||
|
||||
attach(pin ) - Attaches a servo motor to an i/o pin.
|
||||
attach(pin, min, max ) - Attaches to a pin setting min and max values in microseconds
|
||||
default min is 544, max is 2400
|
||||
|
||||
write() - Sets the servo angle in degrees. (invalid angle that is valid as pulse in microseconds is treated as microseconds)
|
||||
writeMicroseconds() - Sets the servo pulse width in microseconds
|
||||
read() - Gets the last written servo pulse width as an angle between 0 and 180.
|
||||
readMicroseconds() - Gets the last written servo pulse width in microseconds. (was read_us() in first release)
|
||||
attached() - Returns true if there is a servo attached.
|
||||
detach() - Stops an attached servos from pulsing its i/o pin.
|
||||
|
||||
*/
|
||||
#include "Configuration.h"
|
||||
|
||||
#ifdef NUM_SERVOS
|
||||
#include <avr/interrupt.h>
|
||||
#include <Arduino.h>
|
||||
|
||||
#include "Servo.h"
|
||||
|
||||
#define usToTicks(_us) (( clockCyclesPerMicrosecond()* _us) / 8) // converts microseconds to tick (assumes prescale of 8) // 12 Aug 2009
|
||||
#define ticksToUs(_ticks) (( (unsigned)_ticks * 8)/ clockCyclesPerMicrosecond() ) // converts from ticks back to microseconds
|
||||
|
||||
|
||||
#define TRIM_DURATION 2 // compensation ticks to trim adjust for digitalWrite delays // 12 August 2009
|
||||
|
||||
//#define NBR_TIMERS (MAX_SERVOS / SERVOS_PER_TIMER)
|
||||
|
||||
static servo_t servos[MAX_SERVOS]; // static array of servo structures
|
||||
static volatile int8_t Channel[_Nbr_16timers ]; // counter for the servo being pulsed for each timer (or -1 if refresh interval)
|
||||
|
||||
uint8_t ServoCount = 0; // the total number of attached servos
|
||||
|
||||
|
||||
// convenience macros
|
||||
#define SERVO_INDEX_TO_TIMER(_servo_nbr) ((timer16_Sequence_t)(_servo_nbr / SERVOS_PER_TIMER)) // returns the timer controlling this servo
|
||||
#define SERVO_INDEX_TO_CHANNEL(_servo_nbr) (_servo_nbr % SERVOS_PER_TIMER) // returns the index of the servo on this timer
|
||||
#define SERVO_INDEX(_timer,_channel) ((_timer*SERVOS_PER_TIMER) + _channel) // macro to access servo index by timer and channel
|
||||
#define SERVO(_timer,_channel) (servos[SERVO_INDEX(_timer,_channel)]) // macro to access servo class by timer and channel
|
||||
|
||||
#define SERVO_MIN() (MIN_PULSE_WIDTH - this->min * 4) // minimum value in uS for this servo
|
||||
#define SERVO_MAX() (MAX_PULSE_WIDTH - this->max * 4) // maximum value in uS for this servo
|
||||
|
||||
/************ static functions common to all instances ***********************/
|
||||
|
||||
static inline void handle_interrupts(timer16_Sequence_t timer, volatile uint16_t *TCNTn, volatile uint16_t* OCRnA)
|
||||
{
|
||||
if( Channel[timer] < 0 )
|
||||
*TCNTn = 0; // channel set to -1 indicated that refresh interval completed so reset the timer
|
||||
else{
|
||||
if( SERVO_INDEX(timer,Channel[timer]) < ServoCount && SERVO(timer,Channel[timer]).Pin.isActive == true )
|
||||
digitalWrite( SERVO(timer,Channel[timer]).Pin.nbr,LOW); // pulse this channel low if activated
|
||||
}
|
||||
|
||||
Channel[timer]++; // increment to the next channel
|
||||
if( SERVO_INDEX(timer,Channel[timer]) < ServoCount && Channel[timer] < SERVOS_PER_TIMER) {
|
||||
*OCRnA = *TCNTn + SERVO(timer,Channel[timer]).ticks;
|
||||
if(SERVO(timer,Channel[timer]).Pin.isActive == true) // check if activated
|
||||
digitalWrite( SERVO(timer,Channel[timer]).Pin.nbr,HIGH); // its an active channel so pulse it high
|
||||
}
|
||||
else {
|
||||
// finished all channels so wait for the refresh period to expire before starting over
|
||||
if( ((unsigned)*TCNTn) + 4 < usToTicks(REFRESH_INTERVAL) ) // allow a few ticks to ensure the next OCR1A not missed
|
||||
*OCRnA = (unsigned int)usToTicks(REFRESH_INTERVAL);
|
||||
else
|
||||
*OCRnA = *TCNTn + 4; // at least REFRESH_INTERVAL has elapsed
|
||||
Channel[timer] = -1; // this will get incremented at the end of the refresh period to start again at the first channel
|
||||
}
|
||||
}
|
||||
|
||||
#ifndef WIRING // Wiring pre-defines signal handlers so don't define any if compiling for the Wiring platform
|
||||
// Interrupt handlers for Arduino
|
||||
#if defined(_useTimer1)
|
||||
SIGNAL (TIMER1_COMPA_vect)
|
||||
{
|
||||
handle_interrupts(_timer1, &TCNT1, &OCR1A);
|
||||
}
|
||||
#endif
|
||||
|
||||
#if defined(_useTimer3)
|
||||
SIGNAL (TIMER3_COMPA_vect)
|
||||
{
|
||||
handle_interrupts(_timer3, &TCNT3, &OCR3A);
|
||||
}
|
||||
#endif
|
||||
|
||||
#if defined(_useTimer4)
|
||||
SIGNAL (TIMER4_COMPA_vect)
|
||||
{
|
||||
handle_interrupts(_timer4, &TCNT4, &OCR4A);
|
||||
}
|
||||
#endif
|
||||
|
||||
#if defined(_useTimer5)
|
||||
SIGNAL (TIMER5_COMPA_vect)
|
||||
{
|
||||
handle_interrupts(_timer5, &TCNT5, &OCR5A);
|
||||
}
|
||||
#endif
|
||||
|
||||
#elif defined WIRING
|
||||
// Interrupt handlers for Wiring
|
||||
#if defined(_useTimer1)
|
||||
void Timer1Service()
|
||||
{
|
||||
handle_interrupts(_timer1, &TCNT1, &OCR1A);
|
||||
}
|
||||
#endif
|
||||
#if defined(_useTimer3)
|
||||
void Timer3Service()
|
||||
{
|
||||
handle_interrupts(_timer3, &TCNT3, &OCR3A);
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
|
||||
|
||||
static void initISR(timer16_Sequence_t timer)
|
||||
{
|
||||
#if defined (_useTimer1)
|
||||
if(timer == _timer1) {
|
||||
TCCR1A = 0; // normal counting mode
|
||||
TCCR1B = _BV(CS11); // set prescaler of 8
|
||||
TCNT1 = 0; // clear the timer count
|
||||
#if defined(__AVR_ATmega8__)|| defined(__AVR_ATmega128__)
|
||||
TIFR |= _BV(OCF1A); // clear any pending interrupts;
|
||||
TIMSK |= _BV(OCIE1A) ; // enable the output compare interrupt
|
||||
#else
|
||||
// here if not ATmega8 or ATmega128
|
||||
TIFR1 |= _BV(OCF1A); // clear any pending interrupts;
|
||||
TIMSK1 |= _BV(OCIE1A) ; // enable the output compare interrupt
|
||||
#endif
|
||||
#if defined(WIRING)
|
||||
timerAttach(TIMER1OUTCOMPAREA_INT, Timer1Service);
|
||||
#endif
|
||||
}
|
||||
#endif
|
||||
|
||||
#if defined (_useTimer3)
|
||||
if(timer == _timer3) {
|
||||
TCCR3A = 0; // normal counting mode
|
||||
TCCR3B = _BV(CS31); // set prescaler of 8
|
||||
TCNT3 = 0; // clear the timer count
|
||||
#if defined(__AVR_ATmega128__)
|
||||
TIFR |= _BV(OCF3A); // clear any pending interrupts;
|
||||
ETIMSK |= _BV(OCIE3A); // enable the output compare interrupt
|
||||
#else
|
||||
TIFR3 = _BV(OCF3A); // clear any pending interrupts;
|
||||
TIMSK3 = _BV(OCIE3A) ; // enable the output compare interrupt
|
||||
#endif
|
||||
#if defined(WIRING)
|
||||
timerAttach(TIMER3OUTCOMPAREA_INT, Timer3Service); // for Wiring platform only
|
||||
#endif
|
||||
}
|
||||
#endif
|
||||
|
||||
#if defined (_useTimer4)
|
||||
if(timer == _timer4) {
|
||||
TCCR4A = 0; // normal counting mode
|
||||
TCCR4B = _BV(CS41); // set prescaler of 8
|
||||
TCNT4 = 0; // clear the timer count
|
||||
TIFR4 = _BV(OCF4A); // clear any pending interrupts;
|
||||
TIMSK4 = _BV(OCIE4A) ; // enable the output compare interrupt
|
||||
}
|
||||
#endif
|
||||
|
||||
#if defined (_useTimer5)
|
||||
if(timer == _timer5) {
|
||||
TCCR5A = 0; // normal counting mode
|
||||
TCCR5B = _BV(CS51); // set prescaler of 8
|
||||
TCNT5 = 0; // clear the timer count
|
||||
TIFR5 = _BV(OCF5A); // clear any pending interrupts;
|
||||
TIMSK5 = _BV(OCIE5A) ; // enable the output compare interrupt
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
static void finISR(timer16_Sequence_t timer)
|
||||
{
|
||||
//disable use of the given timer
|
||||
#if defined WIRING // Wiring
|
||||
if(timer == _timer1) {
|
||||
#if defined(__AVR_ATmega1281__)||defined(__AVR_ATmega2561__)
|
||||
TIMSK1 &= ~_BV(OCIE1A) ; // disable timer 1 output compare interrupt
|
||||
#else
|
||||
TIMSK &= ~_BV(OCIE1A) ; // disable timer 1 output compare interrupt
|
||||
#endif
|
||||
timerDetach(TIMER1OUTCOMPAREA_INT);
|
||||
}
|
||||
else if(timer == _timer3) {
|
||||
#if defined(__AVR_ATmega1281__)||defined(__AVR_ATmega2561__)
|
||||
TIMSK3 &= ~_BV(OCIE3A); // disable the timer3 output compare A interrupt
|
||||
#else
|
||||
ETIMSK &= ~_BV(OCIE3A); // disable the timer3 output compare A interrupt
|
||||
#endif
|
||||
timerDetach(TIMER3OUTCOMPAREA_INT);
|
||||
}
|
||||
#else
|
||||
//For arduino - in future: call here to a currently undefined function to reset the timer
|
||||
#endif
|
||||
}
|
||||
|
||||
static boolean isTimerActive(timer16_Sequence_t timer)
|
||||
{
|
||||
// returns true if any servo is active on this timer
|
||||
for(uint8_t channel=0; channel < SERVOS_PER_TIMER; channel++) {
|
||||
if(SERVO(timer,channel).Pin.isActive == true)
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
|
||||
/****************** end of static functions ******************************/
|
||||
|
||||
Servo::Servo()
|
||||
{
|
||||
if( ServoCount < MAX_SERVOS) {
|
||||
this->servoIndex = ServoCount++; // assign a servo index to this instance
|
||||
servos[this->servoIndex].ticks = usToTicks(DEFAULT_PULSE_WIDTH); // store default values - 12 Aug 2009
|
||||
}
|
||||
else
|
||||
this->servoIndex = INVALID_SERVO ; // too many servos
|
||||
}
|
||||
|
||||
uint8_t Servo::attach(int pin)
|
||||
{
|
||||
return this->attach(pin, MIN_PULSE_WIDTH, MAX_PULSE_WIDTH);
|
||||
}
|
||||
|
||||
uint8_t Servo::attach(int pin, int min, int max)
|
||||
{
|
||||
if(this->servoIndex < MAX_SERVOS ) {
|
||||
pinMode( pin, OUTPUT) ; // set servo pin to output
|
||||
servos[this->servoIndex].Pin.nbr = pin;
|
||||
// todo min/max check: abs(min - MIN_PULSE_WIDTH) /4 < 128
|
||||
this->min = (MIN_PULSE_WIDTH - min)/4; //resolution of min/max is 4 uS
|
||||
this->max = (MAX_PULSE_WIDTH - max)/4;
|
||||
// initialize the timer if it has not already been initialized
|
||||
timer16_Sequence_t timer = SERVO_INDEX_TO_TIMER(servoIndex);
|
||||
if(isTimerActive(timer) == false)
|
||||
initISR(timer);
|
||||
servos[this->servoIndex].Pin.isActive = true; // this must be set after the check for isTimerActive
|
||||
}
|
||||
return this->servoIndex ;
|
||||
}
|
||||
|
||||
void Servo::detach()
|
||||
{
|
||||
servos[this->servoIndex].Pin.isActive = false;
|
||||
timer16_Sequence_t timer = SERVO_INDEX_TO_TIMER(servoIndex);
|
||||
if(isTimerActive(timer) == false) {
|
||||
finISR(timer);
|
||||
}
|
||||
}
|
||||
|
||||
void Servo::write(int value)
|
||||
{
|
||||
if(value < MIN_PULSE_WIDTH)
|
||||
{ // treat values less than 544 as angles in degrees (valid values in microseconds are handled as microseconds)
|
||||
if(value < 0) value = 0;
|
||||
if(value > 180) value = 180;
|
||||
value = map(value, 0, 180, SERVO_MIN(), SERVO_MAX());
|
||||
}
|
||||
this->writeMicroseconds(value);
|
||||
}
|
||||
|
||||
void Servo::writeMicroseconds(int value)
|
||||
{
|
||||
// calculate and store the values for the given channel
|
||||
byte channel = this->servoIndex;
|
||||
if( (channel < MAX_SERVOS) ) // ensure channel is valid
|
||||
{
|
||||
if( value < SERVO_MIN() ) // ensure pulse width is valid
|
||||
value = SERVO_MIN();
|
||||
else if( value > SERVO_MAX() )
|
||||
value = SERVO_MAX();
|
||||
|
||||
value = value - TRIM_DURATION;
|
||||
value = usToTicks(value); // convert to ticks after compensating for interrupt overhead - 12 Aug 2009
|
||||
|
||||
uint8_t oldSREG = SREG;
|
||||
cli();
|
||||
servos[channel].ticks = value;
|
||||
SREG = oldSREG;
|
||||
}
|
||||
}
|
||||
|
||||
int Servo::read() // return the value as degrees
|
||||
{
|
||||
return map( this->readMicroseconds()+1, SERVO_MIN(), SERVO_MAX(), 0, 180);
|
||||
}
|
||||
|
||||
int Servo::readMicroseconds()
|
||||
{
|
||||
unsigned int pulsewidth;
|
||||
if( this->servoIndex != INVALID_SERVO )
|
||||
pulsewidth = ticksToUs(servos[this->servoIndex].ticks) + TRIM_DURATION ; // 12 aug 2009
|
||||
else
|
||||
pulsewidth = 0;
|
||||
|
||||
return pulsewidth;
|
||||
}
|
||||
|
||||
bool Servo::attached()
|
||||
{
|
||||
return servos[this->servoIndex].Pin.isActive ;
|
||||
}
|
||||
|
||||
#endif
|
||||
@ -0,0 +1,132 @@
|
||||
/*
|
||||
Servo.h - Interrupt driven Servo library for Arduino using 16 bit timers- Version 2
|
||||
Copyright (c) 2009 Michael Margolis. All right reserved.
|
||||
|
||||
This library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
This library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
/*
|
||||
|
||||
A servo is activated by creating an instance of the Servo class passing the desired pin to the attach() method.
|
||||
The servos are pulsed in the background using the value most recently written using the write() method
|
||||
|
||||
Note that analogWrite of PWM on pins associated with the timer are disabled when the first servo is attached.
|
||||
Timers are seized as needed in groups of 12 servos - 24 servos use two timers, 48 servos will use four.
|
||||
The sequence used to sieze timers is defined in timers.h
|
||||
|
||||
The methods are:
|
||||
|
||||
Servo - Class for manipulating servo motors connected to Arduino pins.
|
||||
|
||||
attach(pin ) - Attaches a servo motor to an i/o pin.
|
||||
attach(pin, min, max ) - Attaches to a pin setting min and max values in microseconds
|
||||
default min is 544, max is 2400
|
||||
|
||||
write() - Sets the servo angle in degrees. (invalid angle that is valid as pulse in microseconds is treated as microseconds)
|
||||
writeMicroseconds() - Sets the servo pulse width in microseconds
|
||||
read() - Gets the last written servo pulse width as an angle between 0 and 180.
|
||||
readMicroseconds() - Gets the last written servo pulse width in microseconds. (was read_us() in first release)
|
||||
attached() - Returns true if there is a servo attached.
|
||||
detach() - Stops an attached servos from pulsing its i/o pin.
|
||||
*/
|
||||
|
||||
#ifndef Servo_h
|
||||
#define Servo_h
|
||||
|
||||
#include <inttypes.h>
|
||||
|
||||
/*
|
||||
* Defines for 16 bit timers used with Servo library
|
||||
*
|
||||
* If _useTimerX is defined then TimerX is a 16 bit timer on the curent board
|
||||
* timer16_Sequence_t enumerates the sequence that the timers should be allocated
|
||||
* _Nbr_16timers indicates how many 16 bit timers are available.
|
||||
*
|
||||
*/
|
||||
|
||||
// Say which 16 bit timers can be used and in what order
|
||||
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
|
||||
#define _useTimer5
|
||||
//#define _useTimer1
|
||||
#define _useTimer3
|
||||
#define _useTimer4
|
||||
//typedef enum { _timer5, _timer1, _timer3, _timer4, _Nbr_16timers } timer16_Sequence_t ;
|
||||
typedef enum { _timer5, _timer3, _timer4, _Nbr_16timers } timer16_Sequence_t ;
|
||||
|
||||
#elif defined(__AVR_ATmega32U4__)
|
||||
//#define _useTimer1
|
||||
#define _useTimer3
|
||||
//typedef enum { _timer1, _Nbr_16timers } timer16_Sequence_t ;
|
||||
typedef enum { _timer3, _Nbr_16timers } timer16_Sequence_t ;
|
||||
|
||||
#elif defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__)
|
||||
#define _useTimer3
|
||||
//#define _useTimer1
|
||||
//typedef enum { _timer3, _timer1, _Nbr_16timers } timer16_Sequence_t ;
|
||||
typedef enum { _timer3, _Nbr_16timers } timer16_Sequence_t ;
|
||||
|
||||
#elif defined(__AVR_ATmega128__) ||defined(__AVR_ATmega1281__)||defined(__AVR_ATmega2561__)
|
||||
#define _useTimer3
|
||||
//#define _useTimer1
|
||||
//typedef enum { _timer3, _timer1, _Nbr_16timers } timer16_Sequence_t ;
|
||||
typedef enum { _timer3, _Nbr_16timers } timer16_Sequence_t ;
|
||||
|
||||
#else // everything else
|
||||
//#define _useTimer1
|
||||
//typedef enum { _timer1, _Nbr_16timers } timer16_Sequence_t ;
|
||||
typedef enum { _Nbr_16timers } timer16_Sequence_t ;
|
||||
#endif
|
||||
|
||||
#define Servo_VERSION 2 // software version of this library
|
||||
|
||||
#define MIN_PULSE_WIDTH 544 // the shortest pulse sent to a servo
|
||||
#define MAX_PULSE_WIDTH 2400 // the longest pulse sent to a servo
|
||||
#define DEFAULT_PULSE_WIDTH 1500 // default pulse width when servo is attached
|
||||
#define REFRESH_INTERVAL 20000 // minumim time to refresh servos in microseconds
|
||||
|
||||
#define SERVOS_PER_TIMER 12 // the maximum number of servos controlled by one timer
|
||||
#define MAX_SERVOS (_Nbr_16timers * SERVOS_PER_TIMER)
|
||||
|
||||
#define INVALID_SERVO 255 // flag indicating an invalid servo index
|
||||
|
||||
typedef struct {
|
||||
uint8_t nbr :6 ; // a pin number from 0 to 63
|
||||
uint8_t isActive :1 ; // true if this channel is enabled, pin not pulsed if false
|
||||
} ServoPin_t ;
|
||||
|
||||
typedef struct {
|
||||
ServoPin_t Pin;
|
||||
unsigned int ticks;
|
||||
} servo_t;
|
||||
|
||||
class Servo
|
||||
{
|
||||
public:
|
||||
Servo();
|
||||
uint8_t attach(int pin); // attach the given pin to the next free channel, sets pinMode, returns channel number or 0 if failure
|
||||
uint8_t attach(int pin, int min, int max); // as above but also sets min and max values for writes.
|
||||
void detach();
|
||||
void write(int value); // if value is < 200 its treated as an angle, otherwise as pulse width in microseconds
|
||||
void writeMicroseconds(int value); // Write pulse width in microseconds
|
||||
int read(); // returns current pulse width as an angle between 0 and 180 degrees
|
||||
int readMicroseconds(); // returns current pulse width in microseconds for this servo (was read_us() in first release)
|
||||
bool attached(); // return true if this servo is attached, otherwise false
|
||||
private:
|
||||
uint8_t servoIndex; // index into the channel data for this servo
|
||||
int8_t min; // minimum is this value times 4 added to MIN_PULSE_WIDTH
|
||||
int8_t max; // maximum is this value times 4 added to MAX_PULSE_WIDTH
|
||||
};
|
||||
|
||||
#endif
|
||||
@ -0,0 +1,131 @@
|
||||
#ifndef ULCDST7920_H
|
||||
#define ULCDST7920_H
|
||||
|
||||
#include "Marlin.h"
|
||||
|
||||
#ifdef U8GLIB_ST7920
|
||||
|
||||
//set optimization so ARDUINO optimizes this file
|
||||
#pragma GCC optimize (3)
|
||||
|
||||
#define ST7920_CLK_PIN LCD_PINS_D4
|
||||
#define ST7920_DAT_PIN LCD_PINS_ENABLE
|
||||
#define ST7920_CS_PIN LCD_PINS_RS
|
||||
|
||||
//#define PAGE_HEIGHT 8 //128 byte frambuffer
|
||||
//#define PAGE_HEIGHT 16 //256 byte frambuffer
|
||||
#define PAGE_HEIGHT 32 //512 byte framebuffer
|
||||
|
||||
#define WIDTH 128
|
||||
#define HEIGHT 64
|
||||
|
||||
#include <U8glib.h>
|
||||
|
||||
static void ST7920_SWSPI_SND_8BIT(uint8_t val)
|
||||
{
|
||||
uint8_t i;
|
||||
for( i=0; i<8; i++ )
|
||||
{
|
||||
WRITE(ST7920_CLK_PIN,0);
|
||||
WRITE(ST7920_DAT_PIN,val&0x80);
|
||||
val<<=1;
|
||||
WRITE(ST7920_CLK_PIN,1);
|
||||
}
|
||||
}
|
||||
|
||||
#define ST7920_CS() {WRITE(ST7920_CS_PIN,1);u8g_10MicroDelay();}
|
||||
#define ST7920_NCS() {WRITE(ST7920_CS_PIN,0);}
|
||||
#define ST7920_SET_CMD() {ST7920_SWSPI_SND_8BIT(0xf8);u8g_10MicroDelay();}
|
||||
#define ST7920_SET_DAT() {ST7920_SWSPI_SND_8BIT(0xfa);u8g_10MicroDelay();}
|
||||
#define ST7920_WRITE_BYTE(a) {ST7920_SWSPI_SND_8BIT((a)&0xf0);ST7920_SWSPI_SND_8BIT((a)<<4);u8g_10MicroDelay();}
|
||||
#define ST7920_WRITE_BYTES(p,l) {uint8_t i;for(i=0;i<l;i++){ST7920_SWSPI_SND_8BIT(*p&0xf0);ST7920_SWSPI_SND_8BIT(*p<<4);p++;}u8g_10MicroDelay();}
|
||||
|
||||
uint8_t u8g_dev_rrd_st7920_128x64_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg)
|
||||
{
|
||||
uint8_t i,y;
|
||||
switch(msg)
|
||||
{
|
||||
case U8G_DEV_MSG_INIT:
|
||||
{
|
||||
SET_OUTPUT(ST7920_CS_PIN);
|
||||
WRITE(ST7920_CS_PIN,0);
|
||||
SET_OUTPUT(ST7920_DAT_PIN);
|
||||
WRITE(ST7920_DAT_PIN,0);
|
||||
SET_OUTPUT(ST7920_CLK_PIN);
|
||||
WRITE(ST7920_CLK_PIN,1);
|
||||
|
||||
ST7920_CS();
|
||||
u8g_Delay(90); //initial delay for boot up
|
||||
ST7920_SET_CMD();
|
||||
ST7920_WRITE_BYTE(0x08); //display off, cursor+blink off
|
||||
ST7920_WRITE_BYTE(0x01); //clear CGRAM ram
|
||||
u8g_Delay(10); //delay for cgram clear
|
||||
ST7920_WRITE_BYTE(0x3E); //extended mode + gdram active
|
||||
for(y=0;y<HEIGHT/2;y++) //clear GDRAM
|
||||
{
|
||||
ST7920_WRITE_BYTE(0x80|y); //set y
|
||||
ST7920_WRITE_BYTE(0x80); //set x = 0
|
||||
ST7920_SET_DAT();
|
||||
for(i=0;i<2*WIDTH/8;i++) //2x width clears both segments
|
||||
ST7920_WRITE_BYTE(0);
|
||||
ST7920_SET_CMD();
|
||||
}
|
||||
ST7920_WRITE_BYTE(0x0C); //display on, cursor+blink off
|
||||
ST7920_NCS();
|
||||
}
|
||||
break;
|
||||
|
||||
case U8G_DEV_MSG_STOP:
|
||||
break;
|
||||
case U8G_DEV_MSG_PAGE_NEXT:
|
||||
{
|
||||
uint8_t *ptr;
|
||||
u8g_pb_t *pb = (u8g_pb_t *)(dev->dev_mem);
|
||||
y = pb->p.page_y0;
|
||||
ptr = (uint8_t*)pb->buf;
|
||||
|
||||
ST7920_CS();
|
||||
for( i = 0; i < PAGE_HEIGHT; i ++ )
|
||||
{
|
||||
ST7920_SET_CMD();
|
||||
if ( y < 32 )
|
||||
{
|
||||
ST7920_WRITE_BYTE(0x80 | y); //y
|
||||
ST7920_WRITE_BYTE(0x80); //x=0
|
||||
}
|
||||
else
|
||||
{
|
||||
ST7920_WRITE_BYTE(0x80 | (y-32)); //y
|
||||
ST7920_WRITE_BYTE(0x80 | 8); //x=64
|
||||
}
|
||||
|
||||
ST7920_SET_DAT();
|
||||
ST7920_WRITE_BYTES(ptr,WIDTH/8); //ptr is incremented inside of macro
|
||||
y++;
|
||||
}
|
||||
ST7920_NCS();
|
||||
}
|
||||
break;
|
||||
}
|
||||
#if PAGE_HEIGHT == 8
|
||||
return u8g_dev_pb8h1_base_fn(u8g, dev, msg, arg);
|
||||
#elif PAGE_HEIGHT == 16
|
||||
return u8g_dev_pb16h1_base_fn(u8g, dev, msg, arg);
|
||||
#else
|
||||
return u8g_dev_pb32h1_base_fn(u8g, dev, msg, arg);
|
||||
#endif
|
||||
}
|
||||
|
||||
uint8_t u8g_dev_st7920_128x64_rrd_buf[WIDTH*(PAGE_HEIGHT/8)] U8G_NOCOMMON;
|
||||
u8g_pb_t u8g_dev_st7920_128x64_rrd_pb = {{PAGE_HEIGHT,HEIGHT,0,0,0},WIDTH,u8g_dev_st7920_128x64_rrd_buf};
|
||||
u8g_dev_t u8g_dev_st7920_128x64_rrd_sw_spi = {u8g_dev_rrd_st7920_128x64_fn,&u8g_dev_st7920_128x64_rrd_pb,&u8g_com_null_fn};
|
||||
|
||||
class U8GLIB_ST7920_128X64_RRD : public U8GLIB
|
||||
{
|
||||
public:
|
||||
U8GLIB_ST7920_128X64_RRD(uint8_t dummy) : U8GLIB(&u8g_dev_st7920_128x64_rrd_sw_spi) {}
|
||||
};
|
||||
|
||||
|
||||
#endif //U8GLIB_ST7920
|
||||
#endif //ULCDST7920_H
|
||||
Loading…
Reference in New Issue