[solved] Porting from Arduino to Particle

General
21

hi @jgarland79,

here is my VFDTube.h:

/*
 * VFDTube.h
 *
 *  Created on: Oct 29, 2012
 *      Author: agu
 */

#ifndef VFDTUBE_H_
#define VFDTUBE_H_

/* #include "Arduino.h" */
#include "application.h"

enum Color
{
	White, Yellow, Magenta, Red,
	Cyan, Green, Blue, Black,
};

const uint8_t VFDTUBE_FONT[] =
{
	// 0-9
	0xb7, 0x22, 0x9b, 0xab, 0x2e,
	0xad, 0xbd, 0x23, 0xbf, 0xaf,

	// a-z
	0xbb, 0xbc, 0x98, 0xba, 0x9f,
	0x1d, 0xb5, 0x3c, 0x14, 0xa2,
	0x9c, 0x94, 0x37, 0x38, 0xb8,
	0x1f, 0x2f, 0x18, 0x2c, 0x1c,
	0xb0, 0x90, 0x0e, 0x0f, 0x2a, 0x1a,
};

class VFDTube
{
public:

	VFDTube(uint8_t pin_din, uint8_t pin_oe, uint8_t pin_st, uint8_t pin_sh,
			byte section_count);
	virtual ~VFDTube();

	void display();

	void putWord(byte index, uint16_t value = 0xff00);
	void clear(int value = 0xff00);

	void setBackgroundColor(Color color);
	void setBackgroundColor(byte index, Color color);

	void setBrightness(byte brightness = 0xff);

	void setPoint(byte index);
	bool setChar(byte index, char c);
	void setChar(char c);

	void printf(const char *__fmt, ...);

private:

	int *_buff;

	const uint8_t _pin_din; // DIN
	const uint8_t _pin_oe; // OE, pin with PWM output is recommended to enable brightness adjustment
	const uint8_t _pin_st; // STCP
	const uint8_t _pin_sh; // SHCP

	const byte _section_count;

	void send(byte data) const;
	bool displayable(char c);
};

#endif /* VFDTUBE_H_ */

and my VFDTube.cpp:

/*
 * VFDTube.cpp
 *
 *  Created on: Oct 29, 2012
 *      Author: agu
 */

#include "VFDTube.h"
#include "application.h"
#include <stdarg.h>
/* STUFF FOR PHOTON */

#define abs(x) ((x)>0?(x):-(x))
#define radians(deg) ((deg)*DEG_TO_RAD)
#define degrees(rad) ((rad)*RAD_TO_DEG)
#define sq(x) ((x)*(x))

#define lowByte(w) ((uint8_t) ((w) & 0xff))
#define highByte(w) ((uint8_t) ((w) >> 8))

#define bitRead(value, bit) (((value) >> (bit)) & 0x01)
#define bitSet(value, bit) ((value) |= (1UL << (bit)))
#define bitClear(value, bit) ((value) &= ~(1UL << (bit)))
#define bitWrite(value, bit, bitvalue) (bitvalue ? bitSet(value, bit) : bitClear(value, bit))

typedef uint16_t word;

#define bit(b) (1UL << (b))

// #define pgm_read_byte(addr) (*(const unsigned char *)(addr))
#define pgm_read_byte_near(addr) (*(const unsigned char *)(addr))

extern const uint8_t digital_pin_to_timer_PGM[];

#define digitalPinToTimer(P) ( pgm_read_byte( digital_pin_to_timer_PGM + (P) ) )

#define NOT_ON_TIMER 0

/* STUFF FOR PHOTON */



VFDTube::VFDTube(uint8_t pin_din, uint8_t pin_oe, uint8_t pin_st,
		uint8_t pin_sh, byte section_count) :
		_pin_din(pin_din), _pin_oe(pin_oe), _pin_st(pin_st), _pin_sh(pin_sh), _section_count(
				section_count)
{
	_buff = (int *) malloc(sizeof(uint16_t) * section_count);

	pinMode(_pin_din, OUTPUT);
	pinMode(_pin_st, OUTPUT);
	pinMode(_pin_sh, OUTPUT);
	pinMode(_pin_oe, OUTPUT);

	this->setBrightness();
}

VFDTube::~VFDTube()
{
	free(_buff);
}

void VFDTube::send(byte data) const
{
	for (byte i = 8; i > 0; i--)
	{
		digitalWrite(_pin_din, bitRead(data, i - 1));
		digitalWrite(_pin_sh, HIGH);
		digitalWrite(_pin_sh, LOW);
	}
}

void VFDTube::display()
{
	for (byte i = 0; i < _section_count; i++)
	{
		this->send(highByte(_buff[i]));
		this->send(lowByte(_buff[i]));
	}

	digitalWrite(_pin_st, HIGH);
	digitalWrite(_pin_st, LOW);

}

void VFDTube::putWord(byte index, word value)
{
	index %= _section_count;
	_buff[index] = value;
}

void VFDTube::clear(int value)
{
	for (byte i = 0; i < _section_count; i++)
		this->putWord(i, value);
}

void VFDTube::setBackgroundColor(Color color)
{
	for (byte i = 0; i < _section_count; i++)
	{
		this->setBackgroundColor(i, color);
	}
}

void VFDTube::setBackgroundColor(byte index, Color color)
{
	index %= _section_count;
	_buff[index] &= 0xff;
	_buff[index] |= color << 8;
}

void VFDTube::setPoint(byte index)
{
	index %= _section_count;
	_buff[index] |= 0x40;
}

bool VFDTube::setChar(byte index, char c)
{
	index %= _section_count;

	bool val = displayable(c);

	if (val)
	{
		word tmp = _buff[index] & 0xff00;

		if (c >= '0' && c <= '9')
			tmp |= pgm_read_byte_near(VFDTUBE_FONT + c - '0');
		else if (c >= 'A' && c <= 'Z')
			tmp |= pgm_read_byte_near(VFDTUBE_FONT + c - 'A' + 10);
		else if (c >= 'a' && c <= 'z')
			tmp |= pgm_read_byte_near(VFDTUBE_FONT + c - 'a' + 10);

		this->putWord(index, tmp);
	}

	return val;
}

void VFDTube::setChar(char c)
{
	for (byte i = 0; i < _section_count; i++)
		this->setChar(i, c);
}

void VFDTube::printf(const char *__fmt, ...)
{
	word cache_length = _section_count * 2 + 1;
	char * cache = (char *) malloc(sizeof(char) * cache_length);

	va_list ap;
	va_start(ap, __fmt);
	vsnprintf(cache, cache_length, __fmt, ap);
	va_end(ap);

	byte index = 0;
	byte ptr = 0;

	for (byte i=0; i<_section_count; i++)
		_buff[i] &= 0xff00;

	while (cache[index] && ptr < _section_count)
	{
		if (this->setChar(ptr, cache[index]))
			ptr++;
		else if (cache[index] == '.')
			this->setPoint(ptr ? ptr - 1 : 0);
		else
		{
			_buff[ptr] &= 0xff00;
			ptr++;
		}

		index++;
	}

	free(cache);
}

bool VFDTube::displayable(char c)
{
	return ((c >= '0' && c <= '9') or (c >= 'A' && c <= 'Z')
			or (c >= 'a' && c <= 'z'));
}

void VFDTube::setBrightness(byte brightness)
{
//	if (digitalPinToTimer(_pin_oe) == NOT_ON_TIMER)
		digitalWrite(_pin_oe, brightness ? LOW : HIGH);
//	else
//		analogWrite(_pin_oe, 0xff - brightness);
}

good luck!

1 Like
22

I got mine working last night by writing my own function using the ShiftOut example here:
https://www.arduino.cc/en/Tutorial/ShiftOut

23

Data Type ā€œuint16_tā€ is not even recognized when I enter it in SETUP on Particle Build ? Shouldnā€™t it turn Blueā€¦like ā€œcharā€.

I run into this a lot so Iā€™m wondering where everyone is getting all these header files that help them do more bot level work in Particle ?

HELP ?

24

Try building that and you should see itā€™s recognized.
Code hilighting is no compile time check.

1 Like