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I have done the fft on this processor on CCS compiler.
you can use the code from here
https://www.edaboard.com/threads/195898/
for any help , you can ask me .
whereas if you want to do it on the C30 compiler then it is also a good alternative.
attach is the fft files . I write the program using CCS compiler , but simulation was done on the Mplab ide.
I used the Matlab to get the samples of sine wave. put it in the array "input". Then the fft is done.
one need to change this value
#define FFT_BLOCK_LENGTH 128
in file FFT.h...
I have written the following code to implement the circular buffer ,
code is working for the X-data space fine ,
but
for the Y-data space the same code does not work
#include <30F4013.h>
#FUSES NOWDT //No Watch Dog Timer
#FUSES HS //High speed Osc (>...
I am to make an equipment which could work as low as -25 C.
which type of capacitor should i use.
I am using Max232 and electrolyte capacitor.
can electoryltic capacitor be used for low temperature as i read in wiki
": for most types, capacitance falls off rapidly below room temperature...
Re: Low temperature issu
as every thing else is working except the RF communication side. i am going to use max 232 in ceramic package .
i hope this will solve the problem as the Radio can work down to -30 c .
only fear is that of capacitors.
can they create problem in low temperature...
what factors i should keep in the mind in designing a system which is to be tested at -20 C.
i have built a system , which showed failure in Wireless communication at low temperature.
however, at the same time , wired communication worked fine.
i interfaced the radio with the...
i designed the FFT on Dspic 33FJ128GP306 processor .
its 128 point FFT.
i generated different waves using Dspic works and plotted the resultant FFT ( after squaring real and imaginary components ) .
i used the same data in matlab to generate the FFT. and plotted the data
the results are...
no i did not needed the composite signal. though i created the sum of two signals of different frequencies
what if u help me solve my problem regarding teh digital filters
actually i designed a filter and wanted to check its performance by feeding it samples values of the sin wave form of different frequencies.
now i am using the MATLAB to generate the array of sin wave form
i am using this code for FIR filter
****************************************
#define Ntap 31
#define DCgain 32768
__int16 fir(__int16 NewSample) {
__int16 FIRCoef[Ntap] = {
-40,
-44,
74,
79,
-141,
-143,
273...
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