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

[flotulopex]

The controller contains n bytes of Display Data Random Access Memory which is usually referred to as DDRAM.

Each of these DDRAM memory addresses corresponds to a character position on an attached display, but the specific position varies depending on the configuration of that display.

This is what I was missing and this info can be found here