Problém s řádkováním LCD 20x4

Zdravím chlapci a děvčata.
Hraju si a učím se s LCD a dvěma DS18B20 na jedný lince. Problém mám v tom, že když si chci vypsat celý ROM CODE čidla oddělený mezerami (přesáhnu 20 znaků) tak FAMILI CODE se mi napíše až na třetí řádek. To samé když si nechám vypsat delší text. Vždycky to jeden řádek displeje přeskočí. K lcd používám knihovnu od Fleuryho a k čidlu od Martina Thomase.
Poradí mi prosím někdo kde mám něco blbě nastavenýho, nebo dělám chybu?
Knihovnou k lcd jsem už používal dřív, ale nepotřeboval jsem vypsat tak dlouhé řetězce.
Jen pro info. Je to převzaty z jednoho projektu co jsem si našel na netu kvůli knihovnám k DSku.

Výpis main.c



#include <stdio.h>
#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/eeprom.h>
#include <string.h>


#include "owi_highlevel.h"
#include "ds18x20.h"
#include "lcd.h"
#include "delay.h"
#include "crc.h"


#define MAX_SENSORS 10	// we can handle only sensor ID's from 0-9 (display constraint on order page)


uint8_t gSensorIDs[MAX_SENSORS][OWI_ROMCODE_SIZE];	// active 1-wire thermometer sensors
uint8_t g1Wire_order[MAX_SENSORS];	// contains output ordering of 1-Wire thermometer devices
int gReadings[MAX_SENSORS];	// contains decicelsius readings for all thermometer sensors
char gBuffer[21];	// used for itoa conversions and sprintf buffer
int gLog_interval;	// time period between log entries




// forward declarations
uint8_t onewire_search( void);
void display_temperatures( uint8_t num_sensors);
void log_temperatures( uint8_t num_sensors);
void read_temperatures( uint8_t num_sensors);
void show_id_uart( uint8_t *id);
void show_exinfo_lcd( uint8_t index);



/****************************************************************************************
 *                                                                                      *
 *           Main Entry Point                                                           *
 *                                                                                      *
 ****************************************************************************************/
int main( void)
{
	uint8_t num_sensors, tmp, i;
	
	lcd_init( LCD_DISP_ON);
	lcd_clrscr();
	lcd_led(1);
	//lcd_command(1<<LCD_FUNCTION_4BIT_1LINE);
	
	lcd_puts_P( "Nazdar");
	delay_ms(2000);	// pause lcd display for a moment
	
	lcd_clrscr();
	lcd_puts("Hledam cidla a vsechny veci kolem");
	delay_ms(2000);

	// get attached 1-wire sensor info
	num_sensors = onewire_search();
	if( num_sensors == 0)
	{
		lcd_clrscr();
		lcd_puts_P( "Neni pripojen senzor");
		while( 1);	// nothing to do - stop further processing
	}

	// display the count of sensors found on 1-Wire bus
	itoa( (int)num_sensors, gBuffer, 10);
	lcd_gotoxy( 0, 3);
	lcd_puts( gBuffer);
	lcd_puts_P( " Senzor(y)");
	delay_ms( 2000);	// pause lcd display for a moment
	
	lcd_clrscr();
	for (tmp = 0; tmp < num_sensors; tmp++)
	{
		for (i = (OWI_ROMCODE_SIZE - 1); i < 255 ; i--)
		{
			itoa( (int)gSensorIDs[tmp]*, gBuffer, 16);
			lcd_puts(gBuffer);
			lcd_puts(" ");
		}
		lcd_gotoxy(0,2);
	}
	
	for (;;)
	{
		read_temperatures(num_sensors);
		lcd_gotoxy(10,1);
		display_temperatures(0);
		lcd_gotoxy(10,3);
		display_temperatures(1);
	}
	

}

/****************************************************************************************
 *                                                                                      *
 *           Helper Functions                                                           *
 *                                                                                      *
 ****************************************************************************************/


// search 1-wire bus for active devices
uint8_t onewire_search( void)
{
	uint8_t i, diff, num_sensors;
	uint8_t id[OWI_ROMCODE_SIZE];
	
	num_sensors = 0;
	
	for( diff = OWI_SEARCH_FIRST; 
			diff != OWI_LAST_DEVICE && num_sensors < MAX_SENSORS ;)
	{
		diff = owi_search( diff, &id[0], OWI_SEARCH_ROM);	// search all sensors
		
		if( diff == OWI_PRESENCE_ERROR)
		{
			lcd_clrscr();
			lcd_puts_P( "neni senzor");
			break;
		}
		else if( diff == OWI_DATA_ERR)
		{
			lcd_clrscr();
			lcd_puts_P( "Bus Error"); 	
			break;
		}
		else if( ! crc8( id, OWI_ROMCODE_SIZE))	// is it a valid id?
		{
			if( OWI_FAMILY( id[0]) == DS18B20_FAMILY_CODE || OWI_FAMILY( id[0]) == DS18S20_FAMILY_CODE)
			{
				for( i = 0; i < OWI_ROMCODE_SIZE; i++)
					gSensorIDs[num_sensors]* = id*;
				num_sensors++;
			}
		}
		else
		{
			// id failed CRC check
			lcd_puts_P( "CRC failed "); 	 	
		}
	}
	return num_sensors;
}

// display one page of most recent temperature data on lcd
void display_temperatures( uint8_t num_sensors)
{
	uint8_t device;

	// should always have at least one sensor on a page
	//lcd_home();
	//device = g1Wire_order[page];
	sprintf( gBuffer, "%01i.%c C", gReadings[num_sensors] / 10, (gReadings[num_sensors] % 10) + '0');
	lcd_puts( gBuffer);
	
	/*
	// is there a second sensor to display?
	if( (page + 1) < num_sensors)
	{
		device = g1Wire_order[page + 1];
		sprintf( gBuffer, "%02i%+04i.%c",
				(int)page + 1, gReadings[device] / 10,
				(gReadings[device] % 10) + '0');
		lcd_puts( gBuffer);
	}
	else lcd_puts_P( "        ");
	*/
}



// read all DS18x20 sensors on 1-wire buss
void read_temperatures( uint8_t num_sensors)
{
	uint8_t i;
	
	if( DS18X20_start_meas( NULL) == OWI_BUS_OK)
	{
		for( i = 0; i < num_sensors; i++)
		gReadings* = DS18X20_get_temp( &gSensorIDs*[0]);
	}
	else
	{
		for( i = 0; i < num_sensors; i++)
			gReadings* = 0;
		lcd_puts_P( "Start meas. fail"); 	
	}
}

a výpis nastavovací části lcd.h

[code]
#ifndef LCD_H
#define LCD_H
/*************************************************************************
Title : C include file for the HD44780U LCD library (lcd.c)
Author: Peter Fleury pfleury@gmx.ch http://tinyurl.com/peterfleury
File: $Id: lcd.h,v 1.14.2.4 2015/01/20 17:16:07 peter Exp $
Software: AVR-GCC 4.x
Hardware: any AVR device, memory mapped mode only for AVR with
memory mapped interface (AT90S8515/ATmega8515/ATmega128)
***************************************************************************/

/**
@mainpage
Collection of libraries for AVR-GCC
@author Peter Fleury pfleury@gmx.ch http://tinyurl.com/peterfleury
@copyright © 2015 Peter Fleury, GNU General Public License Version 3

@file
@defgroup pfleury_lcd LCD library <lcd.h>
@code #include <lcd.h> @endcode

@brief Basic routines for interfacing a HD44780U-based character LCD display

LCD character displays can be found in many devices, like espresso machines, laser printers.
The Hitachi HD44780 controller and its compatible controllers like Samsung KS0066U have become an industry standard for these types of displays.

This library allows easy interfacing with a HD44780 compatible display and can be
operated in memory mapped mode (LCD_IO_MODE defined as 0 in the include file lcd.h.) or in
4-bit IO port mode (LCD_IO_MODE defined as 1). 8-bit IO port mode is not supported.

Memory mapped mode is compatible with old Kanda STK200 starter kit, but also supports
generation of R/W signal through A8 address line.

@see The chapter Interfacing a HD44780 Based LCD to an AVR
on my home page, which shows example circuits how to connect an LCD to an AVR controller.

@author Peter Fleury pfleury@gmx.ch http://tinyurl.com/peterfleury

@version 2.0

@copyright © 2015 Peter Fleury, GNU General Public License Version 3

*/

#include <inttypes.h>
#include <avr/pgmspace.h>

#if (GNUC * 100 + GNUC_MINOR) < 405
#error “This library requires AVR-GCC 4.5 or later, update to newer AVR-GCC compiler !”
#endif

/**@{*/

/*

  • LCD and target specific definitions below can be defined in a separate include file with name lcd_definitions.h instead modifying this file
  • by adding -D_LCD_DEFINITIONS_FILE to the CDEFS section in the Makefile
  • All definitions added to the file lcd_definitions.h will override the default definitions from lcd.h
    */
    #ifdef _LCD_DEFINITIONS_FILE
    #include “lcd_definitions.h”
    #endif

/**

  • @name Definition for LCD controller type
  • Use 0 for HD44780 controller, change to 1 for displays with KS0073 controller.
    */
    #ifndef LCD_CONTROLLER_KS0073
    #define LCD_CONTROLLER_KS0073 0 /**< Use 0 for HD44780 controller, 1 for KS0073 controller */
    #endif

/**

  • @name Definitions for Display Size
  • Change these definitions to adapt setting to your display
  • These definitions can be defined in a separate include file \b lcd_definitions.h instead modifying this file by
  • adding -D_LCD_DEFINITIONS_FILE to the CDEFS section in the Makefile.
  • All definitions added to the file lcd_definitions.h will override the default definitions from lcd.h

*/
#ifndef LCD_LINES
#define LCD_LINES 4 /< number of visible lines of the display */
#endif
#ifndef LCD_DISP_LENGTH
#define LCD_DISP_LENGTH 20 /
< visibles characters per line of the display */
#endif
#ifndef LCD_LINE_LENGTH
#define LCD_LINE_LENGTH 0x40 /< internal line length of the display */
#endif
#ifndef LCD_START_LINE1
#define LCD_START_LINE1 0x00 /
< DDRAM address of first char of line 1 */
#endif
#ifndef LCD_START_LINE2
#define LCD_START_LINE2 0x40 /< DDRAM address of first char of line 2 */
#endif
#ifndef LCD_START_LINE3
#define LCD_START_LINE3 0x14 /
< DDRAM address of first char of line 3 */
#endif
#ifndef LCD_START_LINE4
#define LCD_START_LINE4 0x54 /< DDRAM address of first char of line 4 */
#endif
#ifndef LCD_WRAP_LINES
#define LCD_WRAP_LINES 0 /
< 0: no wrap, 1: wrap at end of visibile line */
#endif

/**

  • @name Definitions for 4-bit IO mode
  • The four LCD data lines and the three control lines RS, RW, E can be on the
  • same port or on different ports.
  • Change LCD_RS_PORT, LCD_RW_PORT, LCD_E_PORT if you want the control lines on
  • different ports.
  • Normally the four data lines should be mapped to bit 0…3 on one port, but it
  • is possible to connect these data lines in different order or even on different
  • ports by adapting the LCD_DATAx_PORT and LCD_DATAx_PIN definitions.
  • Adjust these definitions to your target.\n
  • These definitions can be defined in a separate include file \b lcd_definitions.h instead modifying this file by
  • adding \b -D_LCD_DEFINITIONS_FILE to the \b CDEFS section in the Makefile.
  • All definitions added to the file lcd_definitions.h will override the default definitions from lcd.h

*/
#define LCD_IO_MODE 1 /**< 0: memory mapped mode, 1: IO port mode */

#if LCD_IO_MODE

#ifndef LCD_PORT
#define LCD_PORT PORTA /< port for the LCD lines */
#endif
#ifndef LCD_DATA0_PORT
#define LCD_DATA0_PORT LCD_PORT /
< port for 4bit data bit 0 */
#endif
#ifndef LCD_DATA1_PORT
#define LCD_DATA1_PORT LCD_PORT /< port for 4bit data bit 1 */
#endif
#ifndef LCD_DATA2_PORT
#define LCD_DATA2_PORT LCD_PORT /
< port for 4bit data bit 2 */
#endif
#ifndef LCD_DATA3_PORT
#define LCD_DATA3_PORT LCD_PORT /< port for 4bit data bit 3 */
#endif
#ifndef LCD_DATA0_PIN
#define LCD_DATA0_PIN 0 /
< pin for 4bit data bit 0 */
#endif
#ifndef LCD_DATA1_PIN
#define LCD_DATA1_PIN 1 /< pin for 4bit data bit 1 */
#endif
#ifndef LCD_DATA2_PIN
#define LCD_DATA2_PIN 2 /
< pin for 4bit data bit 2 */
#endif
#ifndef LCD_DATA3_PIN
#define LCD_DATA3_PIN 3 /< pin for 4bit data bit 3 */
#endif
#ifndef LCD_RS_PORT
#define LCD_RS_PORT LCD_PORT /
< port for RS line */
#endif
#ifndef LCD_RS_PIN
#define LCD_RS_PIN 4 /< pin for RS line */
#endif
#ifndef LCD_RW_PORT
#define LCD_RW_PORT LCD_PORT /
< port for RW line */
#endif
#ifndef LCD_RW_PIN
#define LCD_RW_PIN 5 /< pin for RW line */
#endif
#ifndef LCD_E_PORT
#define LCD_E_PORT LCD_PORT /
< port for Enable line */
#endif
#ifndef LCD_E_PIN
#define LCD_E_PIN 6 /< pin for Enable line */
#endif
#ifndef LCD_LED_PORT
#define LCD_LED_PORT LCD_PORT /
< port for LED enable/disable */
#endif
#ifndef LCD_LED_PIN
#define LCD_LED_PIN 7 /**< pin for LED enable/disable /
#endif
#elif defined(AVR_AT90S4414) || defined(AVR_AT90S8515) || defined(AVR_ATmega64) ||
defined(AVR_ATmega8515)|| defined(AVR_ATmega103) || defined(AVR_ATmega128) ||
defined(AVR_ATmega161) || defined(AVR_ATmega162)
/

  • memory mapped mode is only supported when the device has an external data memory interface
    /
    #define LCD_IO_DATA 0xC000 /
    A15=E=1, A14=RS=1 /
    #define LCD_IO_FUNCTION 0x8000 /
    A15=E=1, A14=RS=0 /
    #define LCD_IO_READ 0x0100 /
    A8 =R/W=1 (R/W: 1=Read, 0=Write */

#else
#error “external data memory interface not available for this device, use 4-bit IO port mode”

#endif

/**

  • @name Definitions of delays
  • Used to calculate delay timers.
  • Adapt the F_CPU define in the Makefile to the clock frequency in Hz of your target
  • These delay times can be adjusted, if some displays require different delays.\n
  • These definitions can be defined in a separate include file \b lcd_definitions.h instead modifying this file by
  • adding \b -D_LCD_DEFINITIONS_FILE to the \b CDEFS section in the Makefile.
  • All definitions added to the file lcd_definitions.h will override the default definitions from lcd.h
    */
    #ifndef LCD_DELAY_BOOTUP
    #define LCD_DELAY_BOOTUP 16000 /< delay in micro seconds after power-on */
    #endif
    #ifndef LCD_DELAY_INIT
    #define LCD_DELAY_INIT 5000 /
    < delay in micro seconds after initialization command sent */
    #endif
    #ifndef LCD_DELAY_INIT_REP
    #define LCD_DELAY_INIT_REP 64 /< delay in micro seconds after initialization command repeated */
    #endif
    #ifndef LCD_DELAY_INIT_4BIT
    #define LCD_DELAY_INIT_4BIT 64 /
    < delay in micro seconds after setting 4-bit mode */
    #endif
    #ifndef LCD_DELAY_BUSY_FLAG
    #define LCD_DELAY_BUSY_FLAG 4 /< time in micro seconds the address counter is updated after busy flag is cleared */
    #endif
    #ifndef LCD_DELAY_ENABLE_PULSE
    #define LCD_DELAY_ENABLE_PULSE 1 /
    < enable signal pulse width in micro seconds */
    #endif

/**

  • @name Definitions for LCD command instructions
  • The constants define the various LCD controller instructions which can be passed to the
  • function lcd_command(), see HD44780 data sheet for a complete description.
    */

/* instruction register bit positions, see HD44780U data sheet /
#define LCD_CLR 0 /
DB0: clear display /
#define LCD_HOME 1 /
DB1: return to home position /
#define LCD_ENTRY_MODE 2 /
DB2: set entry mode /
#define LCD_ENTRY_INC 1 /
DB1: 1=increment, 0=decrement /
#define LCD_ENTRY_SHIFT 0 /
DB2: 1=display shift on /
#define LCD_ON 3 /
DB3: turn lcd/cursor on /
#define LCD_ON_DISPLAY 2 /
DB2: turn display on /
#define LCD_ON_CURSOR 1 /
DB1: turn cursor on /
#define LCD_ON_BLINK 0 /
DB0: blinking cursor ? /
#define LCD_MOVE 4 /
DB4: move cursor/display /
#define LCD_MOVE_DISP 3 /
DB3: move display (0-> cursor) ? /
#define LCD_MOVE_RIGHT 2 /
DB2: move right (0-> left) ? /
#define LCD_FUNCTION 5 /
DB5: function set /
#define LCD_FUNCTION_8BIT 4 /
DB4: set 8BIT mode (0->4BIT mode) /
#define LCD_FUNCTION_2LINES 3 /
DB3: two lines (0->one line) /
#define LCD_FUNCTION_10DOTS 2 /
DB2: 5x10 font (0->5x7 font) /
#define LCD_CGRAM 6 /
DB6: set CG RAM address /
#define LCD_DDRAM 7 /
DB7: set DD RAM address /
#define LCD_BUSY 7 /
DB7: LCD is busy */

/* set entry mode: display shift on/off, dec/inc cursor move direction /
#define LCD_ENTRY_DEC 0x04 /
display shift off, dec cursor move dir /
#define LCD_ENTRY_DEC_SHIFT 0x05 /
display shift on, dec cursor move dir /
#define LCD_ENTRY_INC_ 0x06 /
display shift off, inc cursor move dir /
#define LCD_ENTRY_INC_SHIFT 0x07 /
display shift on, inc cursor move dir */

/* display on/off, cursor on/off, blinking char at cursor position /
#define LCD_DISP_OFF 0x08 /
display off /
#define LCD_DISP_ON 0x0C /
display on, cursor off /
#define LCD_DISP_ON_BLINK 0x0D /
display on, cursor off, blink char /
#define LCD_DISP_ON_CURSOR 0x0E /
display on, cursor on /
#define LCD_DISP_ON_CURSOR_BLINK 0x0F /
display on, cursor on, blink char */

/* move cursor/shift display /
#define LCD_MOVE_CURSOR_LEFT 0x10 /
move cursor left (decrement) /
#define LCD_MOVE_CURSOR_RIGHT 0x14 /
move cursor right (increment) /
#define LCD_MOVE_DISP_LEFT 0x18 /
shift display left /
#define LCD_MOVE_DISP_RIGHT 0x1C /
shift display right */

/* function set: set interface data length and number of display lines /
#define LCD_FUNCTION_4BIT_1LINE 0x20 /
4-bit interface, single line, 5x7 dots /
#define LCD_FUNCTION_4BIT_2LINES 0x28 /
4-bit interface, dual line, 5x7 dots /
#define LCD_FUNCTION_8BIT_1LINE 0x30 /
8-bit interface, single line, 5x7 dots /
#define LCD_FUNCTION_8BIT_2LINES 0x38 /
8-bit interface, dual line, 5x7 dots */

#define LCD_MODE_DEFAULT ((1<<LCD_ENTRY_MODE) | (1<<LCD_ENTRY_INC) )
[/code]******

V Lcd.h zkus

#ifndef LCD_WRAP_LINES #define LCD_WRAP_LINES 1 /**< 0: no wrap, 1: wrap at end of visibile line */ #endif

To už jsem zkoušel předtím. Teď jsem to zkoušel znovu. To řádkování to sice napraví, ale když po tomto rozdělení dlouhého řetězce použiju funkci lcd_gotoxy (0,2), tak mi to další text vypíše na začátek 2. řádku a né třetího jak chci.
Do programu jsem doplnil nějaké pauzy a udělal jsem video s WRAP 0 a WRAP 1.

WRAP 0: youtube.com/watch?v=G3kJbcKZ2zw
WRAP 1: youtube.com/watch?v=7ll90bpI9rY

kod v main.c je teď tento:



#include <stdio.h>
#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/eeprom.h>
#include <string.h>


#include "owi_highlevel.h"
#include "ds18x20.h"
#include "lcd.h"
#include "delay.h"
#include "crc.h"


#define MAX_SENSORS 10	// we can handle only sensor ID's from 0-9 (display constraint on order page)


uint8_t gSensorIDs[MAX_SENSORS][OWI_ROMCODE_SIZE];	// active 1-wire thermometer sensors
uint8_t g1Wire_order[MAX_SENSORS];	// contains output ordering of 1-Wire thermometer devices
int gReadings[MAX_SENSORS];	// contains decicelsius readings for all thermometer sensors
char gBuffer[21];	// used for itoa conversions and sprintf buffer
int gLog_interval;	// time period between log entries




// forward declarations
uint8_t onewire_search( void);
void display_temperatures( uint8_t num_sensors);
void read_temperatures( uint8_t num_sensors);




/****************************************************************************************
 *                                                                                      *
 *           Main Entry Point                                                           *
 *                                                                                      *
 ****************************************************************************************/
int main( void)
{
	uint8_t num_sensors, tmp, i;
	
	lcd_init( LCD_DISP_ON_BLINK);
	lcd_clrscr();
	lcd_led(1);
	//lcd_command(1<<LCD_FUNCTION_4BIT_1LINE);
	
	lcd_puts_P( "Nazdar");
	delay_ms(2000);	// pause lcd display for a moment
	
	lcd_clrscr();
	lcd_puts("Hledam cidla a vsechny veci kolem");
	delay_ms(2000);

	// get attached 1-wire sensor info
	num_sensors = onewire_search();
	if( num_sensors == 0)
	{
		lcd_clrscr();
		lcd_puts_P( "Neni pripojen senzor");
		while( 1);	// nothing to do - stop further processing
	}

	// display the count of sensors found on 1-Wire bus
	itoa( (int)num_sensors, gBuffer, 10);
	lcd_gotoxy( 0, 3);
	lcd_puts( gBuffer);
	lcd_puts( " Senzor(y)");
	delay_ms( 2000);	// pause lcd display for a moment
	
	lcd_clrscr();
	for (tmp = 0; tmp < num_sensors; tmp++)
	{
		for (i = (OWI_ROMCODE_SIZE - 1); i < 255 ; i--)
		{
			itoa( (int)gSensorIDs[tmp]*, gBuffer, 16);
			lcd_puts(gBuffer);
			lcd_puts(" ");
		}
		delay_ms(3000);
		lcd_gotoxy(0,2);
		delay_ms(3000);
		//lcd_gotoxy(0,3);
		delay_ms(3000);
	}
	
	for (;;)
	{
		read_temperatures(num_sensors);
		lcd_gotoxy(10,1);
		display_temperatures(0);
		lcd_gotoxy(10,3);
		display_temperatures(1);
	}
	

}

/****************************************************************************************
 *                                                                                      *
 *           Helper Functions                                                           *
 *                                                                                      *
 ****************************************************************************************/


// search 1-wire bus for active devices
uint8_t onewire_search( void)
{
	uint8_t i, diff, num_sensors;
	uint8_t id[OWI_ROMCODE_SIZE];
	
	num_sensors = 0;
	
	for( diff = OWI_SEARCH_FIRST; 
			diff != OWI_LAST_DEVICE && num_sensors < MAX_SENSORS ;)
	{
		diff = owi_search( diff, &id[0], OWI_SEARCH_ROM);	// search all sensors
		
		if( diff == OWI_PRESENCE_ERROR)
		{
			lcd_clrscr();
			lcd_puts_P( "neni senzor");
			break;
		}
		else if( diff == OWI_DATA_ERR)
		{
			lcd_clrscr();
			lcd_puts_P( "Bus Error"); 	
			break;
		}
		else if( ! crc8( id, OWI_ROMCODE_SIZE))	// is it a valid id?
		{
			if( OWI_FAMILY( id[0]) == DS18B20_FAMILY_CODE || OWI_FAMILY( id[0]) == DS18S20_FAMILY_CODE)
			{
				for( i = 0; i < OWI_ROMCODE_SIZE; i++)
					gSensorIDs[num_sensors]* = id*;
				num_sensors++;
			}
		}
		else
		{
			// id failed CRC check
			lcd_puts_P( "CRC failed "); 	 	
		}
	}
	return num_sensors;
}

// display one page of most recent temperature data on lcd
void display_temperatures( uint8_t num_sensors)
{
	//uint8_t device;

	// should always have at least one sensor on a page
	//lcd_home();
	//device = g1Wire_order[page];
	sprintf( gBuffer, "%01i.%c C", gReadings[num_sensors] / 10, (gReadings[num_sensors] % 10) + '0');
	lcd_puts( gBuffer);
	
	/*
	// is there a second sensor to display?
	if( (page + 1) < num_sensors)
	{
		device = g1Wire_order[page + 1];
		sprintf( gBuffer, "%02i%+04i.%c",
				(int)page + 1, gReadings[device] / 10,
				(gReadings[device] % 10) + '0');
		lcd_puts( gBuffer);
	}
	else lcd_puts_P( "        ");
	*/
}



// read all DS18x20 sensors on 1-wire buss
void read_temperatures( uint8_t num_sensors)
{
	uint8_t i;
	
	if( DS18X20_start_meas( NULL) == OWI_BUS_OK)
	{
		for( i = 0; i < num_sensors; i++)
		gReadings* = DS18X20_get_temp( &gSensorIDs*[0]);
	}
	else
	{
		for( i = 0; i < num_sensors; i++)
			gReadings* = 0;
		lcd_puts_P( "Start meas. fail"); 	
	}
}

Když jsem se znovu pořadně zamyslel a koukl do datashetu, tak mi došlo proč je to stím WRAP 0 tak rozházené. Je to podle adres DDRAM jak jdou po sobě 1. řádek - 3. řádek - 2. řádek - 4. řádek.
Ale pořád nevím proč to “blbne” s tím WRAP 1.******