Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Hallo,
if f is the frequency array and X(f) your signal
startFreqIdx = find(X >= F_0, 1 ); % the first index of X(f) with frequency f>= F_0
stopFreqIdx = find(X <= F_1, 1, 'last' ); % the last index of X(f) with frequency f<= F_1
S = sum(X(startFreqIdx : stopFreqIdx ))
This should...
Hello all,
I am looking for the schematics of an old stereo amplifier model TA-2350 (50W Pre-Main amplifier) by Tensai.
I lost my copy and I need it to perform some maintenance operations on my device.
Please could somebody suggest me some link where I could find it?
Many thanks
Mowgli
Maybe there is some confusion about the concept of non-causal system.
A system is said causal if its output at time T is independent from the input at time t>T, in other words if the output is the product of and only of the present or past input values and not of the future ones.
Hence non...
You can try Winmerge
https://winmerge.org/
It is a very powerful tool for text files comparison and you can use it also to compare ASCII hex files, though it is not its main purpose.
Regards
Mowgli
If the sine pulses frequency is fixed you can use a look up table, otherwise you could implement a CORDIC loop to generate the sine samples of the required frequencies.
Regards
Mowgli
The GPS is used not to provide position but an absolute time reference to synchronize all the Base stations in the network.
Try thinking to what happens if the TDM frames of each BTS are not perfectly aligned in the network.
Regards
Mowgli
As far I know I don't think that you could find a faster way to test the status of a I/O line using a commercial CPU: usually the status of processor's IO line is mapped to a specific bit in one (or more depending on the IO pin count) CPU register. So I suppose that 2 clock cycles are the...
True,
use the following Matlab instructions
q= quantizer[x,y] % set the Fixed point format to X bit with Y decimal digits
h=num2hex(q, number) % h is the string which represents the hex value in FP
example
q = quantizer ([16,15]); %FP 16 bit Q15 format
h=num2hex(q,-0.5);
returns the string...
From the Preliminary summary document
Par. 5.3.4 6-port On-Chip Data Memory System
16K*40-bit on-chip memory => means that you can store in Data memory up to 16K floating point elements, hence there is enough space to store internally the 2048 values to be processed by FFT, plus other...
Sorry for the disguise: Q1.15 is equal to Q15 definition found in Wikipedia
It defines 16 bit fixed point format with one sign bit and 15-bits fractional part
-1^B15 x Sum(2^-Bn)
where B15 is MSB and B0 is LSB
So the range for this format is [-1, 0.99996948242188] or which is represented by...
For what concern FFT processing almost all DSP are able to do this kind of operations, the limits are applications requirements
- real time 2048 pts => choose a processor with a suitable clock rate and memory to manage all samples
- FFT display => check for a processor which has a native...
Hello kimo77
I don't know the function wavread but from what you wrote ("... result from -1 to 1 ") I suppose that it returns the numeric values of the audio samples encoded in the .wav file. The range (-1,1) is normal if you are considering a stream of fixed point values in Q1.xx format...
Thank you FvM for your suggestion.
I was just evaluating this chip vs the Silabs CP220x which seems more "user friendly" because it has a simpler architecture and the data sheet looks quite clear but has only 10 Mbit PHY!
I already read the SMSC chip data sheet and seemed less accurate in the...
Hello all,
I need advices on a ethernet controller chip (PHY + MAC) with a simple host interface (not PCI) and extended temperature range (-40 ÷ +85 °C at least) to be integrated on a custom board with one FPGA and one DSP to provide minimal network capabilities to an embedded data acquisition...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
