Matrix user forums

Hi,

Sorry, but we really need some help.
where can we modify the Matrix program to have a real maxi level of
16-bit signal - SQRT(32767) or 181, in order to have something Workable?
thanks,

Yann

thank you for your answer on how to increase the buffer value to 256.
Now it works better.
My input signal is a sinus from 1000 to 3000 because of my 12-bit Analog-to-Digital Converter (A/D) (0 to 4096)
What I don't understand, it's that the output value of my FFT is really weak: for the main ...

With the test made by benp, my old program test15g.fcf_pic16 is working now.
The problem was that my sinus signal was sometimes minus that O and the analogic acquisition was truncated. It's good from 5 Hz to 13Hz. It's better when the signal is >0 and <5V.

The problem now is that 32 values for the ...

OK there was an other problem in the example,
It seems better to use ADD_Raw_Tick as Add_To_Buffer,
because we use a _Tick method

Now if I put 5V at the input, after the FFT, for all the frequencies I have always 0.
It's better.

but with an 5.2 HZ sinus signal input, when I sample at 45Hz, the ...

thanks Benj for your work, now I can compile my FFT program.
but the result is not good.

I make a sinus signal of 25 Hz from 0v to 5v.
I do a sample of 183 Hz on 32 sample taken.

and after the FFT in the result in frequencie
in level data I read always in frequencies domain
5hz, 1
11Hz, 2
17Hz ...

We trust in you Benj !



thanks,

Yann

Hello,

I have made a new post on FFT and DSPIC.
You can find the new post here:
http://www.matrixmultimedia.com/mmforum ... 46&t=12009

YannR

Hello Everybody,

I make a new post on FFT used on DSPIC.

I am user of matrix multimedia product and teacher in an engineer School in France : INSA LYON.
I work with my students on fantastic projects:
https://www.youtube.com/user/yricotti
My students and I have so discovered electronic...

In a New ...

HI,

I try to use the FFT componant on a DSPIC 30F3014, with flowcode V5.5.2.1 for Pic 24 and DsPIC
I use the program
10. Frequency Analysis using FFT.fcf_pic16
It doesn't seem to work...
I have tried to find the problem with my file by adding more and more
components of 10. Frequency Analysis ...

Hi,

just for information:
the results of this test have been made with HS clock of 12 MHz.
the result with a HS/2/PLL 16x on a 30F3014 are less impressive.

THANKS BENP,

yes I've success to make TCP-IP with the nex EB023-00-2.

How to poceed?

do the same as with the EB023-00-1, but
in connection connect CS to the good pin.
in properties select EB 023-2(WIZ810MJ) and HW channel to 1
In your flowcode program change all the former channel O to channel 1 ...

HI Benp,

the probleme seems not to be with UDP, I have success to make transsmission between a PC and e-blocks
with both EB023-00-2 and EB023-00-1
I put you the 2 files I have try without problem.
the only thing to do is check the EB023-02 fot migration from v1 to v2 and to make a new connection ...

HI Benj,

For my project, I will use a Discret Fourier Transformation.
I've made an excel File to make Calculations in order to test what I have with flowcode.
I hope, it can help you to try quick Calculations.
the FFT is a DFT and the cooley Tukey (FFT) is also a DFT.

Yann

Hello,

I try to make TCP IP communication.
When I make it with the EB023-00-01 It works,
but with the new EB023-00-02 there is problem.
When I try the macro GetSocketStatus
It return 20 and sometimes 23.
When I look for this numbers in the help files,
it's written that the value can only be from 0 ...

don't forget me.
yann

it will be really nice to have a FFT code, I think I can wait untill tommrow
thanks.

thank you benp,

we really need this FFT component. We are planing to use it to detect biological signals, in
human body. We hope to control a car with this component only with mind.
We are doing this with an hospital near lyon (france) and if you had a beta version it would be
quite usefull to try ...

yes That's a very good project.
thanks,

thank you to benp and benj.

my problem is over. I've reset my wifi card.

have a nice day,

yann

Hi Benj,

the problem: I've put a password on the WIFI card and I have made a mistake so ...
I can't connect any more with It... It's why I'd like to make a factory reset.

I try to give you more information:
first of all my electronic assembly: reset-WIFI2.JPG
secondly one of the numerous program ...

thank you for the answer.
I've un-commented the section of code.
but my WIFI card is still unreachable.

have you an exemple of code tu run with in order to reset the card?

regards

yann

Hi,

I'd like to make a FACTORY RESET on a EB069 CARD (WIFI card).
I'have tried to modify the input port 1 and 3 (triggger and reset)
but I don't know exactly WHAT to put on this port...
and for how many time?

thanks,

yann