Die Suche ergab 245 Treffer

von fotoopa
21 Jan 2021, 14:28
Forum: Modellideen & -vorstellung
Thema: Setup with the new DE0-Nano-Soc board.
Antworten: 29
Zugriffe: 3200

Re: Setup with the new DE0-Nano-Soc board.

The neo-led matrix is connected. With only 3 wires, the 128 LEDs are controlled. Very practical and simple.
Refresch time leds: 256 Hz, 3900 usec.

Bild

HD on Flickr: https://www.flickr.com/photos/fotoopa_hs/50859461681

Frans.
von fotoopa
15 Jan 2021, 20:01
Forum: Modellideen & -vorstellung
Thema: Setup with the new DE0-Nano-Soc board.
Antworten: 29
Zugriffe: 3200

Re: Setup with the new DE0-Nano-Soc board.

Thanks Peter! Here is a PC TXT screen dump for the setting of both characters: https://live.staticflickr.com/65535/50810865081_d5ed80e2cb_b.jpg The neo-led matrix 8x16 consists of 2 modules: ADA1487 Adafruit NeoPixel NeoMatrix 8x8 - 64 RGB LED Pixel Matrix. https://live.staticflickr.com/65535/508097...
von fotoopa
15 Jan 2021, 16:40
Forum: Modellideen & -vorstellung
Thema: Setup with the new DE0-Nano-Soc board.
Antworten: 29
Zugriffe: 3200

Re: Setup with the new DE0-Nano-Soc board.

New project with the De0-Nano Soc board: "The Pic and place robot". This pic and place robot consists of an 8x16 matrix where the balls can be placed. The drawing can be made by selecting 2 characters or by making a drawing. The basic software for this goes via the TXT controller with the Robopro so...
von fotoopa
23 Dez 2020, 10:06
Forum: Robo Pro / Computing / Software
Thema: About the 5sec I2C/SLI problem in "Kontakt mit fischertechnik"
Antworten: 2
Zugriffe: 189

Re: About the 5sec I2C/SLI problem in "Kontakt mit fischertechnik"

About this post: https://forum.ftcommunity.de/viewtopic.php?f=21&t=6504 It is not a real bug or error but it is a problem by design. What I found in my motor pwm test is the following: If you take 1024 x the TXT pwm period you get exactly that trigger the 5 sec problem. It is remarkable that it wou...
von fotoopa
12 Dez 2020, 14:52
Forum: Modellideen & -vorstellung
Thema: Setup with the new DE0-Nano-Soc board.
Antworten: 29
Zugriffe: 3200

Re: Setup with the new DE0-Nano-Soc board.

The next test is the XS motor with reduction box. This is a more practical application. https://live.staticflickr.com/65535/50709659947_3e3bb0df49_b.jpg HD on Flickr: https://www.flickr.com/photos/fotoopa_hs/50709659947 This is the setup of the XS motor coupled to the encoder disk for 76 pulses per ...
von fotoopa
11 Dez 2020, 15:24
Forum: Modellideen & -vorstellung
Thema: Setup with the new DE0-Nano-Soc board.
Antworten: 29
Zugriffe: 3200

Re: Setup with the new DE0-Nano-Soc board.

Overview of motor positioning with the TXT and the FPGA (via I2C). The big difference is that the TXT uses the built-in motor encoder pulse. With the FPGA I use the quadrature decoder mounted on the motor shaft. The TXT is controlled via distance input, the FPGA is controlled with abolute position v...
von fotoopa
21 Nov 2020, 19:10
Forum: Modellideen & -vorstellung
Thema: Setup with the new DE0-Nano-Soc board.
Antworten: 29
Zugriffe: 3200

Re: Setup with the new DE0-Nano-Soc board.

To program the De0 Nano Soc board for good motor control, I first examined the motor control of FT. For this I made a setup with 2 motors so I can also test them in synchronous mode with FT. https://live.staticflickr.com/65535/50629423357_0533601e43_b.jpg HD pictire Flickr: https://www.flickr.com/ph...
von fotoopa
10 Okt 2020, 11:38
Forum: Modellideen & -vorstellung
Thema: Setup with the new DE0-Nano-Soc board.
Antworten: 29
Zugriffe: 3200

Re: Setup with the new DE0-Nano-Soc board.

I checked the signal tap analyser of the quartus. This is a very powerful tool where you have a logic analyser without having to use extra i/O pins. It also proves to be very useful to examine internal activities at very high frequencies. The only drawback is that it uses quite a lot of resources an...
von fotoopa
03 Okt 2020, 09:55
Forum: Modellideen & -vorstellung
Thema: Setup with the new DE0-Nano-Soc board.
Antworten: 29
Zugriffe: 3200

Re: Setup with the new DE0-Nano-Soc board.

I found some videos for the setup of the signaltap in Quartus. This simplifies the startup quite a bit. I think there will be pros and cons with a signaltap. An external LA also has a lot of settings and especially the different serial protocols for I2C and SPI. Whether these are also available in Q...
von fotoopa
02 Okt 2020, 17:36
Forum: Modellideen & -vorstellung
Thema: Setup with the new DE0-Nano-Soc board.
Antworten: 29
Zugriffe: 3200

Re: Setup with the new DE0-Nano-Soc board.

After quietly rereading everything I will first read the manual about the signal tap in quartus and try to use it. It looks quite powerful. I see that this document contains 213 pages, so a lot of work to read and to use. I now suspect silence on my part for several weeks...

Frans.
von fotoopa
02 Okt 2020, 11:23
Forum: Modellideen & -vorstellung
Thema: Setup with the new DE0-Nano-Soc board.
Antworten: 29
Zugriffe: 3200

Re: Setup with the new DE0-Nano-Soc board.

There it is! Registers _are_ memory. If you implement 512*8 bit in logic then you'll unnecessarily consume a lot of logic resources. Registers can usually easily be placed in block ram. This will save you a lot of your precious logic blocks. No, it's not that simple. There are multiple tasks runnin...
von fotoopa
02 Okt 2020, 09:51
Forum: Modellideen & -vorstellung
Thema: Setup with the new DE0-Nano-Soc board.
Antworten: 29
Zugriffe: 3200

Re: Setup with the new DE0-Nano-Soc board.

@Vleeuwen Thanks a lot! If I have a very small part of your knowledge I could also start up the Linux part. At my age it is no longer feasible for me to learn this knowledge. I suspect this will be one of my last small projects. Too many limitations, diabetes, bad eyes, oblige me to less activity. @...
von fotoopa
01 Okt 2020, 15:38
Forum: Modellideen & -vorstellung
Thema: Setup with the new DE0-Nano-Soc board.
Antworten: 29
Zugriffe: 3200

Re: Setup with the new DE0-Nano-Soc board.

I sometimes wonder if you are really aware what level of sheer power you have there. This board is heavily subsidized by Intel. Try to find a än official dealer for the FPGA alone will give you a price significantly higher than the one you paid for the entire de0 nano. This chip is expensive and po...
von fotoopa
01 Okt 2020, 10:23
Forum: Modellideen & -vorstellung
Thema: Setup with the new DE0-Nano-Soc board.
Antworten: 29
Zugriffe: 3200

Re: Setup with the new DE0-Nano-Soc board.

I'm close to believing that one day you'll present us with a homebrew ft based nuclear fusion reactor... Hi Peter, it won't run that fast. I'm just past 77 years old. Everything I make now is just for fun and to keep me busy. I don't need it at all. You may think why you need all these inputs for. ...
von fotoopa
30 Sep 2020, 17:39
Forum: Modellideen & -vorstellung
Thema: Setup with the new DE0-Nano-Soc board.
Antworten: 29
Zugriffe: 3200

Re: Setup with the new DE0-Nano-Soc board.

Testing of the spi motor module. The module contains 3 TB6612 motor drivers to control 6 motors. Full control of the motors is done in the De0 nano soc module. The commands are sent by the TXT controller over the I2C connection. The motors get support for quadrature encoders, min and max switch, hom...
von fotoopa
27 Sep 2020, 16:23
Forum: Modellideen & -vorstellung
Thema: Setup with the new DE0-Nano-Soc board.
Antworten: 29
Zugriffe: 3200

Re: Setup with the new DE0-Nano-Soc board.

With the new acquisition, a 4 channel analog scope, it is again easier to make measurements. The scope has a bandwidth of 50MHz and a sampling up to 1 Gs/sec. An extra large buffer makes a deep analyze possible. The scope is connected to 4 coax 50 ohm cables. To have no extra distortion of the signa...
von fotoopa
21 Sep 2020, 17:27
Forum: Modellideen & -vorstellung
Thema: Setup with the new DE0-Nano-Soc board.
Antworten: 29
Zugriffe: 3200

Re: Setup with the new DE0-Nano-Soc board.

The harware with the DE0-nano soc module for the TXT Controller is ready. Controller with DE0-nano soc module. This controller works together with the TXT controller of Fischertechnik via an I2C connection. The TXT is connected to the PC. With this own controller a lot of extensions are possible. Al...
von fotoopa
01 Sep 2020, 09:03
Forum: Modellideen & -vorstellung
Thema: Startschuss zu einem neuen Grossprojekt.....
Antworten: 9
Zugriffe: 1226

Re: Startschuss zu einem neuen Grossprojekt.....

Ich hatte auch ein Video. Dies illustriert die Funktionsweise der verschiedenen Module.

https://youtu.be/yZnnx5vvjQU

Frans.
von fotoopa
31 Aug 2020, 16:59
Forum: Modellideen & -vorstellung
Thema: Startschuss zu einem neuen Grossprojekt.....
Antworten: 9
Zugriffe: 1226

Re: Startschuss zu einem neuen Grossprojekt.....

Early 2018 I also assembled a number of modules. The control was via the TXT controller and a FPGA module that was connected via I2C. On the TXT control you can see better the different modules. Here are some links to the images: https://www.flickr.com/photos/fotoopa_hs/28132493079 https://www.flick...
von fotoopa
29 Aug 2020, 13:04
Forum: Modellideen & -vorstellung
Thema: Setup with the new DE0-Nano-Soc board.
Antworten: 29
Zugriffe: 3200

Re: Setup with the new DE0-Nano-Soc board.

Final assembly of the DE0-nano soc board for the fischertechnik control unit. Different connections can be provided via separate side plates. Because of this I have a more more flexible assembly. The TXT controller is connected via I2C. On the backside are already 4x SPI connectors and the I2C conne...