Hello,
I'm playing around with a EA-DOGM-163 LCD (16 characters, 3 lines).
Attachment 8282
This LCD is equipped with a ST7036 controller.
For tests, I have built my project and made this display work with an 8 bits bus - and it works :smile: ...at least, only the first line is okay.
But when it comes to display some text on a specific line, I can't achieve it.
According to the controller's datasheet, ST7036 is instruction compatible with HD44780. But if I try to use values like $C0 (beginning of second line) or $94 (beginning of third line), it won't work.
Attachment 8284
Looking again in the ST7036's datasheet, page 20, one can read this:
Attachment 8287
So, as it is now in my code, I used $10 and $20 values...but it still doesn't work.
Anyone an idea where I'm wrong?
I'm playing around with a EA-DOGM-163 LCD (16 characters, 3 lines).
Attachment 8282
This LCD is equipped with a ST7036 controller.
For tests, I have built my project and made this display work with an 8 bits bus - and it works :smile: ...at least, only the first line is okay.
But when it comes to display some text on a specific line, I can't achieve it.
Code:
' ====== FUSES =====================================================================================
' PIC 16F690
@ __Config _FCMEN_OFF &_IESO_OFF &_CPD_OFF &_WDT_OFF &_HS_OSC &_BOR_OFF &_CP_OFF &_PWRTE_OFF &_MCLRE_OFF
' ====== REGISTERS =================================================================================
' 76543210
OPTION_REG = %10000000 ' PORT A&B Pull-Ups (look WPUA & WPUB)
ANSEL = %00000000 ' Analog inputs Channels 0 to 7
ANSELH = %00000000 ' Analog inputs Channels 8 to 11
ADCON0 = %00000000 ' A/D Module is OFF
CM1CON0 = %00000000 ' Comparator1 Module is OFF
CM2CON0 = %00000000 ' Comparator2 Module is OFF
INTCON = %00000000 ' INTerrupts CONtrol
PORTA = %00000000 ' Ports High/Low (0 to 5)
TRISA = %00000000 ' Set Input/Output (0 to 5)
PORTB = %00000000 ' Ports High/Low (4 to 7)
TRISB = %00000000 ' Set Input/Output (4 to 7)
PORTC = %00000000 ' Ports High/Low (0 to 7)
TRISC = %00000000 ' Set Input/Output (0 to 7)
' ====== DEFINES =================================================================================
DEFINE OSC 8
DEFINE LCD_DREG PORTC ' LCD data port
DEFINE LCD_DBIT 0 ' LCD data starting PORT.bit (0 or 4)
DEFINE LCD_RSREG PORTB ' LCD register select port
DEFINE LCD_RSBIT 4 ' LCD register select bit
DEFINE LCD_EREG PORTB ' LCD enable port
DEFINE LCD_EBIT 6 ' LCD enable bit
DEFINE LCD_BITS 8 ' LCD bus size (4 or 8 bits)
DEFINE LCD_LINES 3 ' Number lines on LCD
' ====== INITIALIZATION ===================================================================================
' EA-DOG-Mx settings
PAUSE 1000 'Time to power-up this display (THIS IS CRUCIAL!!!)
LCDOUT $FE, $39 'Function Set: 8 bits bus mode
LCDOUT $FE, $1D 'Bias set, 3-lines display (5V=$1D / 3,3V=$15)
LCDOUT $FE, $52 'Power control + Contrast (HiByte) (5V=$52 / 3,3V=55)
LCDOUT $FE, $69 'Follower control (5V=$69 / 3,3V=6D)
LCDOUT $FE, $70 'Contrast (LowByte)
LCDOUT $FE, $38 'Function Set: switch back to instruction table 0
' ====== PROGRAM ===================================================================================
' Program
MAIN:
LCDOUT $FE, 1 ' clear display
LCDOUT $FE, 2,"1" ' beginning of line 1
LCDOUT $FE,$10,"2" ' beginning of line 2
LCDOUT $FE,$20,"3" ' beginning of line 3
ENDAttachment 8284
Looking again in the ST7036's datasheet, page 20, one can read this:
Attachment 8287
So, as it is now in my code, I used $10 and $20 values...but it still doesn't work.
Anyone an idea where I'm wrong?