HOW_TO?

RAyWB

Hi all,

after reading a lot about Display here i have a question , may be useful for many users.
is there a "How to" guide for adding u8glib supported displays to the Firmware?

in other posts i found something like "adding driver at the end of u8glib.h" but i only find u8glib_ex.h
and idont what to add and how to configure the pins.
I want to use a KS0108 display which works well with original u8glib  but i need help to transfer to Repetier firmware.

Thanks a lot in advance

RAyWb

Repetier

Latest version has now 3 drivers already included and in uiconfig.h you can select which one to use. Which driver do you need for KS0108? I can then add it if you show me how you initalizes it in your tests. Just to be sure I use the right one.

RAyWB

U8GLIB_KS0108_128 u8g(8, 9, 10, 11, 4, 5, 6, 7, 18, 14, 15, 17, 16,19);       
 // 8Bit Com: D0..D7: 8,9,10,11,4,5,6,7 en=18, cs1=14, cs2=15,di=17,rw=16,Reset=19

that´s the way i initialise the Display with original u8glib.

unfortunately for me the 3 included drivers are serial...

RAyWB

P.S.
regarding Pins i´m absolutely flexible.In the moment it´s not more than Arduino Mega2560 on a Breadboard...

Repetier

Ok, have added it in the github version. See uiconfig.h about parameter:

// For the 8 bit ks0108 display you need to set these pins

// UI_DISPLAY_D0_PIN,UI_DISPLAY_D1_PIN,UI_DISPLAY_D2_PIN,UI_DISPLAY_D3_PIN,UI_DISPLAY_D4_PIN,UI_DISPLAY_D5_PIN,UI_DISPLAY_D6_PIN,UI_DISPLAY_D7_PIN

// UI_DISPLAY_ENABLE_PIN,UI_DISPLAY_CS1,UI_DISPLAY_CS2,

// UI_DISPLAY_DI,UI_DISPLAY_RW_PIN,UI_DISPLAY_RESET_PIN

//#define U8GLIB_KS0108

#define U8GLIB_KS0108_FAST

All I can say is that it compiles with these drivers. I have also modified u8g to compile and use the correct pins if choosing the fast mode (which I guess is much faster so it should be preferred)

RAyWB

Thanks a lot,
but one "stupid" Question, asi dont´t find it in Github...
can you please tell me wher to find it?

RAyWB

sorry, i have to practice patience.....found

RAyWB

tested now,  just compiles, nothingelse happens...defined the pins as you instructed

 writing original u8glib testfile to exactly the same setup ,the display works.

RAyWB

changed pins now from U8glib original :

#define UI_DISPLAY_RS_PIN        -1       

#define UI_DISPLAY_DI                 17
#define UI_DISPLAY_RW_PIN         16
#define UI_DISPLAY_ENABLE_PIN  18   
#define UI_DISPLAY_D0_PIN          8    
#define UI_DISPLAY_D1_PIN          9       
#define UI_DISPLAY_D2_PIN        10       
#define UI_DISPLAY_D3_PIN        11       
#define UI_DISPLAY_D4_PIN          4       
#define UI_DISPLAY_D5_PIN          5       
#define UI_DISPLAY_D6_PIN          6        
#define UI_DISPLAY_D7_PIN          7       
#define UI_DISPLAY_CS1               14
#define UI_DISPLAY_CS2               15
#define UI_DISPLAY_RESET_PIN    19
 



To own definition:


#define UI_DISPLAY_RS_PIN        -1       

#define UI_DISPLAY_DI                   36
#define UI_DISPLAY_RW_PIN               37
#define UI_DISPLAY_ENABLE_PIN            38   
#define UI_DISPLAY_D0_PIN        39       
#define UI_DISPLAY_D1_PIN        40       
#define UI_DISPLAY_D2_PIN        41       
#define UI_DISPLAY_D3_PIN        42       
#define UI_DISPLAY_D4_PIN        43       
#define UI_DISPLAY_D5_PIN        44       
#define UI_DISPLAY_D6_PIN        45       
#define UI_DISPLAY_D7_PIN        46       
#define UI_DISPLAY_CS1             47
#define UI_DISPLAY_CS2             48
#define UI_DISPLAY_RESET_PIN  49

Display works now ..absolutely correct!!  tried 3 displays from different manufacturers--> OK

Do you have an idea why i had to change the pins?  doesn´t uiconfig setting  override configuration.h?

anyway thanks a lot for supporting...i´ll send my thanks via donate ;-)

Repetier

No, to use uiconfig.h you have to set FEATURE_CONTROLLER 1 in Configuration.h. In all other cases it is ignored which is probably what your problem was.

RAyWB

FEATURE_CONTROLLER 1 was set and Pins for Display were set in uiconfig.h in the way i wrote in the above post...so that´s why i could not understand

Repetier

These variables come 2 times first for i2c and then for 4/8 bit connection. Maybe wrong case but hard to say without the code. I know it uses uiconfig - I  got errors from unresolved variables while implementing. But without having a display for testing I can not say which pins were choosen so could still be some define overwriting mine in u8g_ext.