LCD IMAGE STUCK

[schirrel]

I was using the old 1.0 firmware and just uncommented REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER and changed the pins of the u8g lcd and it worked, now i uncomment and change but it get stuck in this image

[KiteLab]

Looking at the picture, that Marlin can't be that old. And of course its not 1.0.

Marlins own device for the ST7920 has, in some aspects, a relative aggressive timing. You could try the u8glibs original device

U8GLIB_ST7920_128X64_4X u8g(LCD_PINS_D4, LCD_PINS_ENABLE, LCD_PINS_RS); // original u8glib device

instead.

[schirrel]

the picture is of the 1.1 version that i'm trying, now, for the first time to use, i have used the old one with no problem. In fact it's SSD1306, i'm using it with U8GLIB_SSD1306_128X64 u8g(19, 18, 16, 17); // SW SPI Com: SCK = 13, MOSI = 11, CS = 10, A0 = 9 because it's a generic one, not the properly;

[schirrel]

I tried using the ST7920 you said, didn't works :/

[KiteLab]

If you did not use U8GLIB_ST7920_128X64_RRD u8g(0); before, it can not work.

I made a wrong suggestion because

... just uncommented REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER and changed the pins of the u8g lcd and it worked, ...

does not include changing the device.

[schirrel]

i was talking about the 1.0 version of marlin where i just change it and worked, i was asking if it is need another change

[schirrel]

what i mean is, the info screen not appears, if i comment #define SHOW_BOOTSCREEN it will be black, nothign shows up

[KiteLab]

Not as far as i know. But my knowledge is limited to about one year back, and 1.0 was in use before that

Is that step in the colour of your photo visible with the naked eye or a problem introduced by taking the picture? In the first case i'd look for changes in u8glib

[schirrel]

Yeah, the oled has two colors, the seller send me the wrong one, but was ebay so... I tried in one of those lcd ith encoder, that one everyone uses, and it works normal, but when i put the oled it freezes at the boot screen and don't goes to the info :/

[KiteLab]

When you can see the bootscreen - can you communicate with Marlin via USB? I try to find out if Marlin hangs, or if only the display content is not updated.

[schirrel]

the printer responds, just isn't passing image to the display

[schirrel]

i tried to change the bootscreen. i commented

u8g.firstPage();
    do {
      if (show_bootscreen) {
        u8g.drawBitmapP(offx, offy, START_BMPBYTEWIDTH, START_BMPHEIGHT, start_bmp);
        lcd_setFont(FONT_MENU);
        #ifndef STRING_SPLASH_LINE2
          u8g.drawStr(txt1X, u8g.getHeight() - DOG_CHAR_HEIGHT, STRING_SPLASH_LINE1);
        #else
          int txt2X = (u8g.getWidth() - (sizeof(STRING_SPLASH_LINE2) - 1) * DOG_CHAR_WIDTH) / 2;
          u8g.drawStr(txt1X, u8g.getHeight() - DOG_CHAR_HEIGHT * 3 / 2, STRING_SPLASH_LINE1);
          u8g.drawStr(txt2X, u8g.getHeight() - DOG_CHAR_HEIGHT * 1 / 2, STRING_SPLASH_LINE2);
        #endif

      }
    } while (u8g.nextPage());

and add lcd_implementation_status_screen (); but it get stucks in this:

[KiteLab]

Ah ja. What we see is the first 1/8 of the status-screen. That's exactly what you can see without the

u8g.firstPage();
    do {
...
    } while (u8g.nextPage());

loop.

lcd_implementation_status_screen() is normally called from ultralcd.cpp around line 1714 (search for firstPage()). The actual call is a bit hidden in (*currentMenu)();

Place some debug output

SERIAL_ECHO("before DOGLCD");
SERIAL_ECHO("in DOGLCD");
SERIAL_ECHO("in lcdDrawUpdate");
SERIAL_ECHO("in loop");

Hopefully we can see than, where the problem is.

[thinkyhead]

Any progress here?

[schirrel]

HI, i'm gonna work with this today again, i havent make what kitelab purpose but i'm i'm about to

[schirrel]

@ KiteLab and @thinkyhead it goes:

> before DOGLCD
in DOGLCD
before DOGLCD
in DOGLCD
before DOGLCD
in DOGLCD
before DOGLCD
in DOGLCD
before DOGLCD
in DOGLCD
before DOGLCD
in DOGLCD
before DOGLCD
in DOGLCD
before DOGLCD
in DOGLCD
before DOGLCD
in DOGLCD
before DOGLCD
in DOGLCD
before DOGLCD
in DOGLCD
in lcdDrawUpdate
in loop
in loop
in loop
in loop
in loop
in loop
in loop
in loop

i think that the right way, but keeps stucked

[schirrel]

I thought that it may was repeating the bootscrean, but it only happens once, i use and serial echo too. I think that may be something between the bootscreen and the end of it

[Blue-Marlin]

If that output is repeated in a loop it's not Marlin but somewhere in the u8glib. If it stops, remove the debug output, run it again and post the last messages you can see on the console. Do you have the alive-dot in the lower right corner?

[schirrel]

Hy @Blue-Marlin i see no alive-dot sadly.

[schirrel]

@Blue-Marlin also, about :

If that output is repeated in a loop it's not Marlin but somewhere in the u8glib.

The lcd worked at previously version of marlin

[schirrel]

@Blue-Marlin @thinkyhead and @KiteLab if you dont define SHOW_BOOTSCREEN in a normal screen( what i don't have to test) it work normally? Because, the bootscreen works here, i can put whatever, basically the moment it ends that the screen stop to get info, or something like it.

[jbrazio]

Thank you for your interest making Marlin better and reporting this issue but this topic has been open for a long period of time without any further development. Marlin has been under heavy development for the past couple of months and moving to it's last mile to finish the RC cycle and release Marlin v1.1.0. We suggest you to try out the latest RCBugfix branch and reopening this issue if required.

[github-actions[bot]]

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