thank you,
the library I have for the SH1106 has this informations like this

_gwrite_cmd:
call _i2c_start
ldi r17,&H78
call _i2c_write ; write slave address
ldi r17,&H00 ; command mode
call _i2c_write
mov r17,r24 ; command address
Rjmp _Gwrite_DataMisc ; same code
_gwrite_data:
ldi r17,&H78 ;write slave address data write
call _i2c_start
call _i2c_write ; write data mode
ldi r17,&H40
call _i2c_write
mov r17,r24 ; data
_gwrite_datamisc:
call _i2c_write ; write Data
jmp _i2c_stop


but I still can not change brightness in the programm, only if I change the library at the start of the program.


When I wrte somewhere in the programm

GLCDCMD &H81

GLCDDATA 50 (for example),

brightness doesn´t change

this is a graphic lcd. so i was wrong, it must be : GLCDCMD and GLCDDATA
but the lib must support it. the labels _gwrite_cmd and _gwrite_data must be present.
for example from glcdssd1306 :

[b:3b1b7b071a]_gwrite_cmd:[/b:3b1b7b071a]
#IF _XMEGA
rcall _XM_i2c_start
#ELSE
call _i2c_start
#ENDIF
ldi r17,&H78 ; command address
#IF _XMEGA
rcall _XM_i2c_write ; write slave address
#ELSE
call _i2c_write ; write slave address
#ENDIF
mov r17,r24 ; command address
Rjmp _Gwrite_DataMisc ; same code
[b:3b1b7b071a]_gwrite_data:[/b:3b1b7b071a]
ldi r17,&H78 ; data write

Thank you!
it works to change it in the libraty file.

But when I want to write it as a commane

lcdcmd &H81
lcddata 50

I get the remark "label not found (LCD_CONTROL).
Is that a library? I cannot find in the Lib-folder in Bascom

regards

Hi
I just now notice the latest post regarding the library - very good news .

CAN on BASCOM is super easy - hope this lib will work as a second port .

Regards
Nico

Hi

I have a project that require 2 CAN bus 'ports'

One way is to use more powerful dual can port ARM chips .

But I prefer the BASCOM route with one channel a AT90 CAN 128 - the other channel the MCP 2515 .

Is the above library available ?

Regards
Nico

Hello albertsm,

You are right, thank you, it's solved

Regards
P_Santos

your problem was that you copied the 2081 files over the 2082 files.
you only need the bscavrl.dll file

according the datasheet, the contrast is set with &H81 followed by the value.
the table you post has wrong remarks : .db &H81, &HCF ; SETDISPLAYOFFSET , 00
i think the CF is what you want to change.

you can also use lcdcmd and lcddata

like this :

lcdcmd &H81
lcddata 0-255 value for contrast

Dear all,
I recieved some SH1106 few days ago, and I would like to dim it a little bit, but it doesn´t work.
I tried to adjust the settings in the .lib file, as I did successfully in a .lib file for SSD1306, but brightness is always on the maximum level.
I have a .lib file from bascomforum.de, it works properly except of brightness settings.

; slave address, CO|DC|ctrl, data
;CO-continuation bit, if 0 next data will be normal data
;ctrl-if 0, data is a command, if 1 data is normal data stored in GDRAM


here an extract of the library of the SH1106:

_lcd_init_data:
.db &HAE, &H00 ; SETDISPLAYCLOCKDIV , ratio 0x80
.db &H10, &H40 ; SETMULTIPLEX , 1f 128x32
.db &H81, &HCF ; SETDISPLAYOFFSET , 00
.db &HA1, &HC8 ; SETSTARTLINE , CHARGEPUMP
.db &HA6, &HA8 ; vccstate 14 , MEMORYMODE
.DB &H3F, &HD3 ; A0 upside down SEGREMAP
.db &H00, &HD5 ; COMSCANDEC , SETCOMPINS
.db &H80, &HD9 ; 02 128x32 12 , SETCONTRAST
.db &HF1, &HDA ; constrast value 255, SETPRECHARGE,
.db &H12, &HDB ; vccstate f1 , SETVCOMDETECT
.db &H40, &H20 ; &H40 , DISPLAYALLON_RESUME
.db &H02, &H8D ; NORMALDISPLAY
.db &H14, &HA4
.db &HA6, &HAF

I adjusted the contrast value to different levels like 50, 10 (written in hex), but brightness is always the maximum.
As said, it works in the .lib file for SSD1306 and SSD1306 displays. The library for SSD1306 is embedded in my bascom 2.0.8.2,
but, as library for SH1106 is not in, I transfered it manually into lib folder.
Does somebody have an idea?
Thanks in advance

Hello,

It works, uninstalled and installed again, and now it´s fine

Regards
P_Santos