dsp programmatic

%%-----------------------------------------------------------------Fig Ure (' Numbertitle ', ' off ', ' Name ', ' exameple5.16b ') set (GCF, ' Color ', ' white '); Subplot (3,1,1); Stem (n1,x1); Title (' Sequence x1 (n) '); Axis ([0,5,0,5]); Xlabel (' n '); Ylabel (' x1 (n) '); Grid On;subplot (3,1,2); Stem (n2,x2); Title (' Sequence x2 (n) '); Axis ([0,5,0,5]); Xlabel (' n '); Ylabel (' X2 (n) '); Grid On;subplot (3,1,3); Stem (n4,x4); Title (' Circularly convolution sequence x4 (n) '); Axis ([

%%--------------------------------------------------------------percent--------------------------------------------------------------percent START X_dft ' s mag ang real imag%%--------------------------------------------------------------figure (' Numbertitle ', ' off ', ' Name ', ' Example5.7 x_dft its Magnitude and Angle '); set (GCF, ' Color ', ' white '); Subplot (2,1,1); Stem (N,MAGX_DFT); Hold on; Plot (64*w/pi,magx_dtft, '--'); Hold Off;grid on; Axis ([ -0.5,128.2,-1,5]); Title (' Magni

(GCF, ' Color ', ' white '); Subplot (2,2,1); Stem (N,REALX_DFT); Title (' Real {dft[x (n)} '); Axis ([ -0.5,10.5,-5,50]); Xlabel (' K '); Grid On;subplot (2,2,2); Stem (N,IMAGX_DFT); Title (' Imag {dft[x (n)]} '); Axis ([ -0.5,10.5,-20,20]); Xlabel (' K '); Grid on;k = 0:1:5; W = 2*pi/10*k;subplot (2,2,3); Stem (W/PI,MAGX_DFT); Title (' Magnitude DTFT '); %axis ([ -0.5,10.5,-5,50]); Xlabel (' Frequency in \pi units '); Grid On;subplot (2,2,4); Stem (W/PI,PHAX_DFT); Title (' Angle {dft[x (n)]}

Code:Conv_time = zeros (1,150); Fft_time = zeros (1), Nmax = 2048; for L = 1:150TC = 0; tf = 0; N = 2*L-1; Nu = ceil (log10 (N)/log10 (2)); N = 2^nu;for I = 1:100h = Randn (1,l); x = rand (1,l); t0 = clock; Y1 = conv (h,x); T1 = etime (clock,t0); TC = TC + T1;T0 = clock; y2 = Ifft (FFT (h,n). * FFT (x,n)); T2 = etime (clock,t0); tf = tf + t2;end%conv_time (L) =tc/100; Fft_time (L) =tf/100;endn=1:150; Figure (' Numbertitle ', ' off ', ' Name ', ' Exameple5.23 ') set (GCF, ' Color ', ' white ');

Reprinted, do not know the source DSP Technology and Application -- Introduction to linear assembly language Introduction to linear assembly language• Assemble the code structure• Linear assembly language Introduction Assembly code structureLabel: parallel bars [condition] Instruction UnitOperands; Comments(1) LabelA label is used to define a line of code or a variable. It representsOr data storage address. The colon following the label is optional.

---- Peng Xiaolin 196568501 (qq) Welcome Problem description: Void test (float data){Float copydata = Data * 1000*1000;U64 intcopydata = copydata;// View the intcopydata Value} Main (){Test ();} Check the value of intcopydata and find that the value is different from the theoretical value by several thousand. Changing copydata to double is not acceptable. Solution: I carefully read the DSP compiler manual and found that the compiler sets

TI Reference Links:http://www.ti.com.cn/general/cn/docs/gencontent.tsp?contentId=50741----------------------------------------------------------------------------Note Swrite: Stream Write, the data length must be an integer multiple of 8 bytes and does not require a receive-side response. Swrite is the most efficient transmission format, with a lower efficiency for write or read operations with response, and generally only half the efficiency of a non-responsive transmission. -----------

Today is the last day of 2016, see other Bo Friends are writing year-end summary, did this, did that, harvest full, and then look at themselves,Stupefied for a year, did not know what to do, ashamed. Just received a phone call from a distant mother, my brother was an hour ago father, IHere bless brother and sister-in-IAW, they are too difficult, far away for their dreams to fight, refueling (write here tears come out ...) ）I still write my reading notes to end 2016 years.------------------------

Code:n = [ -5:5]; x = ( -0.9). ^n; % x (n) = k = -200:200; w = (pi/100) *k; % [0,PI] axis divided into 101 points. x = x * (exp (-j*pi/100)). ^ (n ' *k); MAGX = ABS (x); Angx = Angle (X); Realx = Real (X); IMAGX = Imag (X); set (GCF, ' Color ', ' white '); Subplot (2,2,1); Plot (W/PI,MAGX); Grid on; Axis ([ -2,2,0,15]); Title (' Magnitude part '), Xlabel (' Frequency in \pi units '); Ylabel (' Magnitude | X| '); Subplot (2,2,3); Plot (W/pi, angx/pi); Grid on; Axis ([

First the code, then the result diagram.An = [ -5:5];x=2*impseq ( -2,-5,5)-Impseq (4,-5,5); set (GCF, ' color ', [1,1,1]) % change coordinates peripheral background color stem (n,x); title (' Sequence In problem 2.1a '); Xlabel (' n '); Ylabel (' x (n) '); Grid on;Bn = [0:20]; X1 = N. * (Stepseq (0,0,20)-Stepseq (10,0,20)); x2 = ten * exp ( -0.3* (N-10)). * (Stepseq (10,0,20)-Stepseq (20,0,20)); x = x1 + X2;set (GCF, ' Color ', [1,1,1]) % change coordinates peri

Finally see the 5th chapter, continue to work hard, refueling!!!Code:xn = [0, 1, 2, 3]; N = 4; Xk = DFS (xn,n)DFS functions used:function [Xk] = DFS (xn,n) percent computes discrete Fourier Series coefficients%%------------------------------------------- --%% [Xk] = DFS (xn,n) percent Xk = Dfs Coeff. Array over 0 Operation Result:"DSP using MATLAB" Example Example5.1

DSP Basic Learning-ADC Synchronous samplingPeng2015-04-28 20:31:06In the DSP28027 Lauchpad learning process, the difference between synchronous sampling and sequential sampling of the ADC is a little bit of a study, here the main focus on the ADC synchronous sampling, ADC synchronous sampling has two different actual statements:1 Multi-channel synchronous sampling : The multi-channel can be sampled at the same time, corresponding to the sampling proce

to find a wayb, a bunch of 0 good dealsC, this general trickery, two items of merger.4.8A, calculated by the equal ratio formula, divided q=1 and not equal to the discussionb, double-loop variable, specify one, change anotherC, it's easy to launch.4.9 ABCD KOE to meet the conditions of absolute integrable, Fourier transform can be carried outF,g,h KO4.10 C D The answer to a real part of the symbol, in fact, no need, the final merge as can be done4.11 The coupling of the signal produces the real

'), Xlabel (' Frequency in \pi units '); Ylabel (' Magnitude | X| '); Subplot (2,2,3); Plot (W/pi, angx/pi); Grid on; % axis ([ -2,2,-1,1]); title (' Angle part '), Xlabel (' Frequency in \pi units '); Ylabel (' Radians/\pi '); subplot (' 2,2,2 '); Plot (W/pi, realx); Grid On;title (' Real part '), Xlabel (' Frequency in \pi units '); Ylabel (' Real '); subplot (' 2,2,4 '); Plot (W/pi, IMAGX); Grid On;title (' Imaginary part '), Xlabel (' Frequency in \pi units '); Ylabel (' imaginary '); perc

/rules.makeL101 Line:# Audio Framework (RPE) and CodecsRpe_path: =$ (ti_sw_root)/rpe/remote-processor-executeAaclcdec_path: =$ (ti_sw_root)/codecs/c674x_aaclcdec_01_41_00_00_elfAaclcenc_path: =$ (ti_sw_root)/codecs/c674x_aaclcenc_01_00_01_00_elf_patchedL301:Rpe_build_vars =ipc_path= "${ipc_path}" \Bios_path= "${bios_path}" \Xdc_path= "${xdc_path}" \Xdais_path= "${xdais_path}" \Syslink_path= "${syslink_path}" \Kernel_path= "${kerneldir}" \Codesourcery_path= "${codegen_path_a8}" \cgt_arm_prefix= "

(1) Cause of the problemDSP in the ALGLINK_PRIV.C gray processing found that the following stripes, and later found that the cache is not in time to write into memory problems(2) Workaroundfor (frameid=0; frameid{Pframe = Framelist.frames[frameid];if (Pframe->channelnum >= pobj->inqueinfo.numch)ContinueDo SW OSDif (POBJ->CREATEARGS.ENABLEOSDALG){Alglink_osdalgprocessframe (pobj->osdalg, pframe);}memset (Pframe->addr[0][1], 0x80, 1920*1080/2);//add by PKF 11-4 128CACHE_WB (Pframe->addr[0][0], 192

/rules.makeL101 Line:# Audio Framework (RPE) and CodecsRpe_path: =$ (ti_sw_root)/rpe/remote-processor-executeAaclcdec_path: =$ (ti_sw_root)/codecs/c674x_aaclcdec_01_41_00_00_elfAaclcenc_path: =$ (ti_sw_root)/codecs/c674x_aaclcenc_01_00_01_00_elf_patchedL301:Rpe_build_vars =ipc_path= "${ipc_path}" \Bios_path= "${bios_path}" \Xdc_path= "${xdc_path}" \Xdais_path= "${xdais_path}" \Syslink_path= "${syslink_path}" \Kernel_path= "${kerneldir}" \Codesourcery_path= "${codegen_path_a8}" \cgt_arm_prefix= "

"DSP development" using CCS5.4 to develop DSP6455-based JPEG2000 image decompression processDisclaimer: Reference Please specify source http://blog.csdn.net/lg1259156776/Description: The front-end is the time based on the VS2010 project, the implementation of the openjpeg2000 on Windows, the implementation of the data from memory to extract the work of decompression. As some technical reserves are needed, they are ported to DSP6455 for decompression.

Link: http://www.altera.com.cn/literature/wp/wp-01166-bdti-altera-floating-point-dsp.pdf In the future, it will be more meaningful to conduct a comparison test of Xilinx DSP architecture FPGA based on the testing method in this article. But remember: the human brain is the best optimizer! Introduction: OverviewFPGAs are increasingly used as Parallel Processing engines for demanding digitalSignal processing applications. benchmark results show that on

Although I still have one year to graduate, I have finished my graduation project and it takes about three months. I am an acute student and have a strong desire to learn the knowledge I am interested in. I also want to write more information, suchI am very interested in arm, Linux, and networks. At the beginning of this semester, I chose video encoding, which is based on the H.264 Video Encoder OF THE dm64.During the reply, the Director said that the focus should be on implementation and applic