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want2know


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Question


How to save streaming data to Matlab workspace
Hi, I am trying to save real-time streaming data obtained from hardware to Matlab workspace, I use the following command: My...

6 years ago | 1 answer | 0

1

answer

Question


Plotted waveform frequency is way too low
I am using Quartus 12.1 sp1, vhdl and Altera Nios II programmed in C code for DE0-Nano Development. Basically, what I have is, ...

6 years ago | 1 answer | 0

1

answer

Question


Equivalent time sampling in Matlab
I am sending data from fpga (nios ii processor) to serial port and Matlab access the serial port and plot real time graph. The N...

6 years ago | 0 answers | 0

0

answers

Question


Serial port timeout- 10 seconds, but getting less samples than expected/desired
Dear Sir/Madam, I have the following error while trying to access serial port data sent from Nios II UART: The specified amou...

7 years ago | 1 answer | 0

1

answer

Answered
Read serial port and plot Matlab graph - some characters are missing, why?
anyone please? any hint will do for me to try?

7 years ago | 0

Question


Read serial port and plot Matlab graph - some characters are missing, why?
Hi all, I was trying to access serial port data sent from UART in Altera Nios II to plot graph real time in Matlab. I want...

7 years ago | 1 answer | 0

1

answer

Question


Access serial port for data sent from Nios II's uart for real time plotting graph in Matlab
Hi all, I am able to read data from FPGA to Nios processor, then transmit this data to Uart component created in Qsys using d...

7 years ago | 1 answer | 0

1

answer

Question


Do I need USB-to-Serial interface to plot graph real-time from Nios II to Matlab?
Hi, I am able to read data from FPGA to Nios processor, then transmit this data to Uart component created in Qsys using direc...

7 years ago | 0 answers | 0

0

answers

Question


How to divide tasks to be done by Nios II processor & Logic elements?
Hi all, I have a complete working project where I use MATLAB/Simulink with coding in S-function Level 2 as well as Simuli...

7 years ago | 0 answers | 0

0

answers

Question


FPGA: Advantages coding conversion using HDL coder vs. direct coding in VHDL/Verilog
Dear all, I would like to know, since the conversion of Simulink to VHDL/Verilog coding could be done using HDL coder tool et...

7 years ago | 1 answer | 0

1

answer

Question


How to convert Simulink project into Verilog or VHDL coding?
Hi all, I have a complete project where I use MATLAB coding in S-function Level 2 as well as Simulink blocks. I would lik...

7 years ago | 1 answer | 0

1

answer

Question


Single lookup table block in Simulink for 300 sets of data?
Hi, I would like to know if it is possible to use JUST a single lookup table block in Simulink for 300 different sets of data...

7 years ago | 1 answer | 0

1

answer

Question


Multiple sampling rates in Simulink - to speed up simulation
Hi, I have a system developed in Simulink where simulation of 60 seconds took around two hours to complete, at the end I wou...

8 years ago | 0 answers | 0

0

answers

Question


Replacing PLL with a ramp signal and clock
Hi all, How can a ramp signal and clock be used to replace a PLL (phase locked loop) in the case where I know frequency is al...

8 years ago | 0 answers | 0

0

answers

Question


dq0 transformation link - useful reference
Dear all, I am looking for simple explanation of dq0 transformation, preferably with examples. I would like to use dq theory ...

8 years ago | 0 answers | 0

0

answers

Question


Problem in using loops - how to have index inside a loop
Hi all, "a" contains index, Vb contains values for example, inputs: vref= 20 a=[2 4 6 9] Vb=[ 8 9 1 7 5 3 6 55 8 7] ...

8 years ago | 0 answers | 0

0

answers

Question


How do I write a for loop for repeatable division algorithm?
Hi all, "a" contains index, Vb contains values for example, inputs: vref= 20 a=[2 4 6 9] Vb=[ 8 9 1 7 ...

8 years ago | 0 answers | 0

0

answers

Question


Faster or smarter way to sort and intersect large amount of data??
Dear Sir/Madam, I was using "intersect" in my Matlab code to do the sorting where I want the following: [ch] = sort(s, 'as...

8 years ago | 1 answer | 0

1

answer

Question


Subscript indices must either be real positive integers or logicals.while using indexing
Hi all, After performing some processing, now the variable 'a' contains [2 5 9]. Let say i have another variable 'b', vari...

8 years ago | 2 answers | 0

2

answers

Question


How to assign value in an array depending on the index stated in another array
Hi all, After performing some processing, now the variable 'a' contains [2 5 9]. Let say i have another variable 'b', var...

8 years ago | 2 answers | 0

2

answers

Question


How to vectorize signal and parameter?
I created a subsystem in Simulink with mask underneath. There are all sorts of control and calculation inside this subsystem. No...

8 years ago | 1 answer | 0

1

answer

Question


Variable size to Fixed step discrete - sample time?
Hi, I have a Simulink block with S-function Level-2 which was working fine to control switching on and off of devices. It was...

8 years ago | 0 answers | 0

0

answers

Question


Calculation error?? system always gives output =[0 0 0 (value in index 3 - value in index 1) 0]
I is defined in workspace and feed to the Matlab function from a constant block in Simulink. I is timeseries object : [0 1 2 3 ...

8 years ago | 0 answers | 0

0

answers

Question


Index expression out of bounds. Attempted to access element 2. The valid range is 1-1.“2”
I keep getting this error, my desired output is to get abs(I(2,ii(a))-I(2,ii(a)-1) so that when ii(a)=2, I want I(2,2) minus I(2...

8 years ago | 1 answer | 0

1

answer

Question


Pre-allocate memory gives zeros all the time, how to avoid?
In the beginning of a function, we have to pre-allocate memory by doing something like this: integ_signal=zeros(5,4); Using t...

8 years ago | 2 answers | 0

2

answers

Question


Subscripted assignment dimension mismatch (size [1 x 1] ~= size [1 x :?])
Hi, I wanted to be: arr(2,1) = arr(2,1) + abs(5.0 minus 5.1);% where I(1,a) is 5.0 and I(1,a+1)is 5.1 Why couldn't I ad...

8 years ago | 0 answers | 0

0

answers

Question


Alternative to Sample and Hold block from Simspower
Dear all, Sample and Hold from Simspower/Control and Measurements/Additional Components I want to use this block however ...

8 years ago | 0 answers | 0

0

answers

Question


Dimensionality issue with Matlab Function
I thought this should be fairly simple, I really have no idea what went wrong, been trying for a week, gosh!! so ashamed of ...

8 years ago | 0 answers | 0

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answers

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