4x20 Display an M256

**copcom-weber** · 18.11.2013, 10:05

Hallo

habe ähnlich wie bei der M32 die Libs verändert aber da kommt nur misst bei raus.
habe es so abgeändert:
h. lib

Code:

void _showScreenLCD_P(const char *line1, const char *line2, const char *line3, const char *line4);

#define showScreenLCD(__line1,__line2,__line3,__line4); ({_showScreenLCD_P((PSTR(__line1)),(PSTR(__line2)),(PSTR(__line3)),(PSTR(__line4)));})

c. lib

Code:

void initLCD(void)
{
    delayCycles(34000);  //No need for Power ON delay as usually the
    // Bootloader should have been executed before...
    PORTG &= ~DISP_WR;
    PORTG &= ~DISP_RS_ALE;
    PORTG &= ~DISP_EN_RD;
    
    mSleep(5);
    
    writeLCDCommand(0b00101100);
    delayCycles(55500);
    mSleep(50);
    
    writeLCDCommand(0b00001001);
    delayCycles(55500);
    mSleep(5);
    
    writeLCDCommand(0b00101000);
    delayCycles(55500);
    
    mSleep(5);
    
    writeLCDCommand(0b00001000);
    delayCycles(55500);
    mSleep(1);
    
    
    writeLCDCommand(0b00000001);
    delayCycles(55500);
    mSleep(1);
    
    writeLCDCommand(0b00000010);
    delayCycles(55500);
    mSleep(1);
        
    writeLCDCommand(0b00001100);
    delayCycles(55500);
    mSleep(1);

    mSleep(5);
    
    clearLCD();
}

und

Code:

void _showScreenLCD_P(const char *line1, const char *line2, const char *line3, const char *line4)
{
    clearLCD();
    writeNStringLCD_P(line1);
    setCursorPosLCD(1, 0);
    writeNStringLCD_P(line2);
    setCursorPosLCD(2, 0);
    writeNStringLCD_P(line3);
    setCursorPosLCD(3, 0);
    writeNStringLCD_P(line4);
}

/**
 * Sets the cursor position on LCD.
 */
void setCursorPosLCD(uint8_t line, uint8_t pos)
{
    pos |= 128;
    if(line==1) pos += 0x40;
    if(line==2) pos += 0x14;
    if(line==3) pos += 0x54;
    writeLCDCommand(pos);
}

was ist daran nun falsch?

danke schonmal

**radbruch** · 18.11.2013, 10:39

Hallo

Meine Anpassungen an mein 20x4-LCD:

Code:

// LDC 20x4
void setCursorPosLCD_20x4(uint8_t line, uint8_t pos)
{
	pos |= 128;
	if(line==1) pos += 0x40;
	else if(line==2) pos += 20;
	else if(line==3) pos += 0x40+20;
	writeLCDCommand(pos);
}

void _showScreenLCD_P_20x4(const char *line1, const char *line2, const char *line3, const char *line4)
{
	clearLCD();
	writeNStringLCD_P(line1);
	setCursorPosLCD_20x4(1, 0);
	writeNStringLCD_P(line2);
	setCursorPosLCD_20x4(2, 0);
	writeNStringLCD_P(line3);
	setCursorPosLCD_20x4(3, 0);
	writeNStringLCD_P(line4);
}

#define showScreenLCD_20x4(__line1,__line2, __line3,__line4); \
({_showScreenLCD_P_20x4((PSTR(__line1)),(PSTR(__line2)), (PSTR(__line3)),(PSTR(__line4)));})