EA-DOGM-163 with ST7036 LCD controller - can't find address for line 2 and 3

[Scampy]

Roger,

I'm no expert, but most of the routines I've seen and used in PBP tend to use 4 bit mode for HD44780 based LCD's so maybe the following might help (?) - you may need to change some pins to match your hardware

DEFINE LCD_DREG  PORTB                  ' LCD Data port
DEFINE LCD_DBIT  0                      ' starting Data bit (0 or 4)
DEFINE LCD_EREG  PORTB                  ' LCD Enable port
DEFINE LCD_EBIT  5                      '     Enable bit  (on EasyPIC 5 LCD)
DEFINE LCD_RSREG PORTB                  ' LCD Register Select port
DEFINE LCD_RSBIT 4                      '     Register Select bit   (on EasyPIC 5 LCD)
DEFINE LCD_BITS  4                      ' LCD bus size (4 or 8 bits)
DEFINE LCD_LINES 3                      ' number of lines on LCD
DEFINE LCD_COMMANDUS 2000               ' Command delay time in us 
DEFINE LCD_DATAUS 50                    ' Data delay time in us

[richard]

Set DDRAMAddress 1 AC6 AC5 AC4 AC3 AC2 AC1 AC0

try this , looks like you need to set bit 7 and add dram ADDRESS

LCDOUT $FE, 1 ' clear display
LCDOUT $FE, 130,"1" ' beginning of line 1
LCDOUT $FE,$90,"2" ' beginning of line 2
LCDOUT $FE,$a0,"3" ' beginning of line 3

[flotulopex]

Thanks a lot Richard,

It works now as expected with this code:

LCDOUT $FE,  1     ' clear display
LCDOUT $FE,  2,"1" ' beginning of line 1
LCDOUT $FE,$90,"2" ' beginning of line 2
LCDOUT $FE,$A0,"3" ' beginning of line 3

May I kindly ask you to explain how you found out those values please?

looks like you need to set bit 7 and add dram ADDRESS

Hum...I don't get this; what do you mean?

[richard]

May I kindly ask you to explain how you found out those values please?

bit 7 = 128 =$80

                        hex       dec              
row1  dram  address  =   0          0          128 + 0 = 128   = $80 
row2  dram  address  = $10         16          128 +16 = 144   = $90 
row3  dram  address  = $20         32          128 +32 = 160   = $A0

[flotulopex]

Thank you again Richard.

My knowledge of the "datasheet language" is apparently still poor

Can you tell where this info is to be found in there?

I'm lucky I've got you helping me (thanks again), but it's so frustrating not being able to find this by myself ...you know what I mean

[richard]

from st7036 data sheet

[flotulopex]

Thank you Richard.

Obviously, I have some lacks in basic knowledge of "display's controller" science since I can't still correlate your information and how I should understand it affects the cursor's position on the display

I stop bothering you now; you gave me the solution and I thank you very much again for it