Search found 1267 matches

by Pito
Tue Jul 25, 2017 10:21 am
Forum: Code snipplets
Topic: TEK 4010/4014 Vector Graphics terminal DEMO
Replies: 52
Views: 638

Re: TEK 4010/4014 Vector Graphics terminal DEMO

So actually the ~3 ms is the time just to write the data to the Tx buffer. Ok, the 8ms is the realistic time for filling the 300x300box.. That is not bad provided most of potential users may use the Tek emulator for a visualization of their measurements done with their ..duinos in a form of simple ...
by Pito
Tue Jul 25, 2017 9:22 am
Forum: Code snipplets
Topic: TEK 4010/4014 Vector Graphics terminal DEMO
Replies: 52
Views: 638

Re: TEK 4010/4014 Vector Graphics terminal DEMO

While reading the TT's source I can see there some interesting functionality regarding printing the texts.
You can set for example the text orientation, 0, 90, 180, 270 deg. That is great when drawing graphs and charts..
by Pito
Tue Jul 25, 2017 8:53 am
Forum: Code snipplets
Topic: TEK 4010/4014 Vector Graphics terminal DEMO
Replies: 52
Views: 638

Re: TEK 4010/4014 Vector Graphics terminal DEMO

For example: the filling a 300x300 box with solid lines uint32_t elapsed = micros(); for (i=100; i<400; i++){ tek.Tekline(i,100,i,400); } elapsed = micros() - elapsed; takes 2.9ms - 7.7ms with the latest libmaple usb on Black f407ZE.. Tek 300x300 line fill.JPG . Btw, why such spread?? (2.897ms - 7.9...
by Pito
Tue Jul 25, 2017 8:26 am
Forum: Code snipplets
Topic: TEK 4010/4014 Vector Graphics terminal DEMO
Replies: 52
Views: 638

Re: TEK 4010/4014 Vector Graphics terminal DEMO

Regarding fills: you may fill with solid lines - the TT's or Xterm's side is fast enough, the bottleneck is the Serial connectivity to the tek terminal. In order to fill ie. 300x300 box with lines you need to send about 2700 bytes via serial, with current usb speeds of say 200kB/sec it is something ...
by Pito
Mon Jul 24, 2017 10:59 pm
Forum: Code snipplets
Topic: TEK 4010/4014 Vector Graphics terminal DEMO
Replies: 52
Views: 638

Re: TEK 4010/4014 Vector Graphics terminal DEMO

I recall some early video games that also used vector displays. Not only games, but all graphical systems since 50ties till late 70ties (CADs, military gadgets - radars, etc) were using these kind of vector displays. In order to get 4096x4096 "resolution" (even it was not exactly such) in single co...
by Pito
Mon Jul 24, 2017 10:39 pm
Forum: Code snipplets
Topic: TEK 4010/4014 Vector Graphics terminal DEMO
Replies: 52
Views: 638

Re: TEK 4010/4014 Vector Graphics terminal DEMO

@Roger, the scifi notation is needed only for printing out the results of user's calculations, not for coordinates. The coordinates are always integers, 0..4095 for x and y. The Tektronix 4010/4014 and others are basically very large oscilloscope tubes, with a very long afterglow. The information pa...
by Pito
Mon Jul 24, 2017 7:56 pm
Forum: Code snipplets
Topic: TEK 4010/4014 Vector Graphics terminal DEMO
Replies: 52
Views: 638

Re: TEK 4010/4014 Vector Graphics terminal DEMO

This Mouse demo shows the returned coordinates. Coordinates work as expected. I get "[36m20" as the mouse button return code - most probably an escape sequence. UPDATE: "[36m" is the escape code for cyan color. When I changed to yellow, I got [33m - the escape code for yellow. Thus it returns the ac...
by Pito
Mon Jul 24, 2017 4:57 pm
Forum: Code snipplets
Topic: TEK 4010/4014 Vector Graphics terminal DEMO
Replies: 52
Views: 638

Re: TEK 4010/4014 Vector Graphics terminal DEMO

Look at my previous post, the best way is to read TTerm's source :) Very nice written, easy to read. TT knows more than I expected :) Frankly, I cannot find TTerm's help or documentation for TEK emulation options.. :? So we have to read the sources. From what I've read the GIN mode returns always 10...
by Pito
Mon Jul 24, 2017 3:52 pm
Forum: Code snipplets
Topic: TEK 4010/4014 Vector Graphics terminal DEMO
Replies: 52
Views: 638

Re: TEK 4010/4014 Vector Graphics terminal DEMO

In this 25y+ old newsgroup board ftp://invisible-island.net/shuford/terminal/tektronix_news.txt I found some info on the GIN mode and mouse coordinates: There are 2 modes of reading the GIN co-ordinates, interactive and non-interactive. Interactive mode: the Xhair cursor is displayed, the operator m...
by Pito
Mon Jul 24, 2017 3:14 pm
Forum: Working / ported libraries
Topic: 433MHz RF remote control
Replies: 10
Views: 1200

Re: 433MHz RF remote control

First, you must see the rx output data pin "does something" when you press a button on the tx. On an o'scope you will see a pulse train with levels like near 0 up to 4V.
Then you may start to mess with software.