Create a 512 by 256 bitmap in Digital?

[VerdichteteEnergie]

I created an 8K RAM bar.
This should serve as graphics memory and save and output in 16-bit.
I would like to output the bits in 512 by 256 pixels on a monochrome screen (black and white). Each bit should stand for one pixel.
The pixels of the bits should be arranged next to each other from top left to right.
For example, if the first register of RAM stores 1111 1111 1111 1111, then the first 16 pixels in the first row should be black from left to right.

My goal is to create a similar screen as in the nand2tetris course.

The text box is just a placeholder for the screen.

Is it possible to create such a screen in digital?

[hneemann]

You have to implement such a component as a java-plugin.
But Ivan Toshkov has already implemented such a display.
See here: https://github.com/itoshkov/digital-n2t

[VerdichteteEnergie]

Many thanks for your response!

I downloaded and unpacked the raw data from the library you linked and replaced the jar file.
Then I created the library using maven.

A new folder has been created in the directory named target. In this folder is a Java file called "digitaln2t-1.0-SNAPSHOT.jar".
I added this in Digital under "Settings" > "Java Library".

After that, I was presented with a new tab called "nand2tetris". When I open the tab, I see a RAM chip "Hack Display" in the menu.

But even when I start the simulation, I don't see a screen.

Do I have to connect something to the data output of the "Hack-Display" chip?

I also noticed that in the simulation the real time clock stops as soon as I enable the str input of the hack display chip.

[VerdichteteEnergie]

Hmm, I don't get any output from the chip either when I've stored something into the hackdisplay chip before.

As I said, the clock doesn't seem to work properly with the chip for me. Real time clock not working. Manual switching causes graphic delays.

Do you think there is a way to realize the bitmap screen with 8K RAM and LED matrix?

[hneemann]

The files look like this: Digital_2022-08-09_11-58-12.log

Such a large display cannot be realized with the LED matrix. You could use the built-in graphic display, but this has a different memory layout. Of course this doesn't matter if you write the code yourself, but programs written for the n2t display won't run then. Maybe it is possible to build a converter circuit that can be written like an n2t display, and uses the built-in graphic display for the output. I have to think about that.

[VerdichteteEnergie]

Thank you! Now I found the logs.

As I can see there were a lot of log files today. But all have the same content. Unfortunately I don't understand it. Here is the upload of the last:
Digital_2023-02-14_12-02-59.log

[hneemann]

Please try this jar file: n2t-display.zip

[VerdichteteEnergie]

It works!

Thank you so much!

You're a hero!