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scube/Marlin/example_configurations/K8400
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AnHardt d0e24e0876 Adaptive screen updates for all kinds of displays 
The target here is to update the screens of graphical and char base
displays as fast as possible, without draining the planner buffer too much.

For that measure the time it takes to draw and transfer one
(partial) screen to the display. Build a max. value from that.
Because ther can be large differences, depending on how much the display
updates are interrupted, the max value is decreased by one ms/s. This way
it can shrink again.
On the other side we keep track on how much time it takes to empty the
planner buffer.
Now we draw the next (partial) display update only then, when we do not
drain the planner buffer to much. We draw only when the time in the
buffer is two times larger than a update takes, or the buffer is empty anyway.

When we have begun to draw a screen we do not wait until the next 100ms
time slot comes. We draw the next partial screen as fast as possible, but
give the system a chance to refill the buffers a bit.

When we see, during drawing a screen, the screen contend has changed,
we stop the current draw and begin to draw the new content from the top.
 		8 years ago
..
Dual-head Sanity-check inverting and pullups for Z probe and Z endstop 8 years ago
Configuration.h Sanity-check inverting and pullups for Z probe and Z endstop 8 years ago
Configuration_adv.h Adaptive screen updates for all kinds of displays 8 years ago
README.md Add a ported example configuration for the Velleman K8400 (Vertex) printer. 8 years ago

README.md

Configuration for Velleman K8400 Vertex

http://www.k8400.eu/

Configuration files for the K8400, ported upstream from the official Velleman firmware. Like it's predecessor, (K8200), the K8400 is a 3Drag clone. There are some minor differences, documented in pins_K8400.h.

Single and dual head configurations provided. Copy the correct Configuration.h and Configuration_adv.h to the /Marlin/ directory.

NOTE: This configuration includes the community sourced feed rate fix. Use 100% feed rate in Repetier!

For implementation and updated K8400 firmware, see https://github.com/birkett/Velleman-K8400-Firmware

Original Sources

Credit to Velleman for the original 1.0.x based code:
http://www.vertex3dprinter.eu/downloads/files/vertex/firmware/vertex-m1-v1.4-h2.zip