Please Help - Senior Moment Strikes

[uncle_bob]

Hi

At least my (possibly incomplete) understanding is that displays are an either / or sort of thing. You get to pick one of them. I do not have the DOGLCD define uncommented and it compiles fine.

Bob

[ex-egll]

So does mine!!!

I guess I read the Configuration.h comments as:

Select either a Graphics or Text LCD at line 1100/1101

Then select the specific display later on, in my case line 1253.

One more obstacle overcome, luckily I have nothing that needs printing right now so I'll just play with the code.

Thanks for your help Bob

Barry

[ex-egll]

Rejoiced a little to quickly above...... it compiled OK but there was no display on the LCD!!!

OK, lets try to summarise progress (or lack thereof) to date with respect to LCD issues

Using Marlin 1.1.0-RC7

This will compile and work with:
#define REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER line 1142
regardless of whether
#define DOGLCD line 976 is commented out or not

Using RC-7 Bugfix or RC-8

Will not compile with both
#define REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER line 1253 AND
#define DOGLCD line 1101

Gives following errors
In file included from sketch\ultralcd.cpp:56:0:
ultralcd_impl_DOGM.h:183: error: 'DOGLCD_CS' was not declared in this scope

U8GLIB_DOGM128_2X u8g(DOGLCD_CS, DOGLCD_A0); // HW-SPI Com: CS, A0 // 4 stripes
.................................................. ...............^
ultralcd_impl_DOGM.h:183: error: 'DOGLCD_A0' was not declared in this scope

U8GLIB_DOGM128_2X u8g(DOGLCD_CS, DOGLCD_A0); // HW-SPI Com: CS, A0 // 4 stripes
.............................................^
exit status 1
'DOGLCD_CS' was not declared in this scope

Programme will compile with either option if the other is commented out,BUT only provides a blank screen.

IF I remove U8glib from the system then the compilation with #define DOGLCD fails, complaining of no U8glib, however compiling with #define REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER give no errors at all, which suggests that U8glib is not being used.
Which would mean no display.

I don't know whether the above is of any use to anyone with a better knowledge of Marlin than me?


Barry