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MarlinFirmware / Marlin

Marlin is an optimized firmware for RepRap 3D printers based on the Arduino platform. Many commercial 3D printers come with Marlin installed. Check with your vendor if you need source code for your specific machine.
https://marlinfw.org
GNU General Public License v3.0
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LCD 12864 RepRap Full Graphic Smart Controller shifted #9394

Closed Nulreference closed 6 years ago

Nulreference commented 6 years ago

possibly the same as #5703 but in 1.1.8 tried solutions suggested in forums and on here to no avail slight line corruption comes and goes about every 20ish seconds in the "fan" gfx on the upper right single line of dots only in fan area. sifts about 20% of screen width each shift and shifted display is also approx 1/2 high(or low depending on direction) I can get to to shift right instead of left adjusting but i cannot find a stable setting from 0 to 4 on each

define ST7920_DELAY_1 DELAY_0_NOP

define ST7920_DELAY_2 DELAY_1_NOP

define ST7920_DELAY_3 DELAY_2_NOP

I can get to to shift right instead of left approximate time per shift 40~45 seconds (continues to shift given time by the same amount each shift)

Edit: Correction only shifts twice as i have been watching it the last 5 minutes 20180129_193903 next shift at 13 minutes

clone aurdino 2560 bigtree 12864 RepRapDiscount Full Graphic Smart Controller ramps 1.4 Marlin 1.1.8

thinkyhead commented 6 years ago

Please test with the latest bugfix-1.1.x (and/or bugfix-2.0.x) branch to see if we fixed this issue. If the problem has been solved then we can close it. If you still see the bad behavior we should investigate further.

Bob-the-Kuhn commented 6 years ago

If you still have problems when all three delays are set to DELAY_4_NOP then it's time to consider possible hardware issues.

The RepRapDiscount Full Graphic Smart Controller is rather finicky about it's timing and is susceptible to electrical interference.

Try keeping the two cables separated from each other and from other cables.

Try shorter cables.

thinkyhead commented 6 years ago

This issue is being closed due to lack of activity. If you have solved the issue, please let us know how you solved it. If you haven't, please tell us what else you've tried in the meantime, and possibly this issue will be reopened.

github-actions[bot] commented 3 years ago

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.