creating and maintaining a knowledge base

... for program, data, and direct memory access (DMA) allow the C6x to perform concurrent program fetches, data read and write, and DMA operations With data and instructions residing in separate memory ... pragma directives tell the compiler to consider certain functions Pragmas include DATA_ALIGN, DATA_SECTION, and so on The DATA_ALIGN pragma has the syntax #pragma DATA_ALIGN (symbol,constant); ... static variables far: for global and static variables declared far stack: allocates memory for the system stack sysmem: reserves space for dynamic memory allocation used by the malloc, calloc, and...

Ngày tải lên: 17/10/2013, 19:15

... Program to illustrate aliasing and antialiasing down-sampling to a rate of kHz (aliasing.c) Programming Examples Using C and ASM Code 143 In lieu of using a sinusoidal signal as input, you can ... magnitude and phase characteristics can be realized with a digital lter Filter characteristics such as center frequency, bandwidth, and lter type can readily be modied A number of tools are available ... ;FIRCASMfuncfast.asm C-called def _rcasmfunc _rcasmfunc: MV A6 ,A1 MPY A6 ,2 ,A6 ZERO A8 ADD A6 ,B4,B4 SUB B4,1,B4 loop: LDH *A4 ++ ,A2 || LDH *B4 ,B2 SUB A1 ,1 ,A1 || LDH *A4 ,A7 NOP STH A7 ,* -A4 [1] [A1 ]...

Ngày tải lên: 24/10/2013, 09:15

... than Butterworth-type filters, which have monotonic responses in both passbands and stopbands An elliptic design has equiripple in both bands and achieves a lower order than a FIGURE 5.8 Relationship ... implementation on the TMS320C6711 digital signal processor, International Conference on Acoustics Speech and Signal Processing (ICASSP), 2001 10 N Ahmed and T Natarajan, Discrete-Time Signals and ... Kluwer Academic, Norwell, MA, 1996 L B Jackson, Roundoff noise analysis for fixed-point digital filters realized in cascade or parallel form, IEEE Transactions on Audio and Electroacoustics, Vol AU-18,...

Ngày tải lên: 28/10/2013, 16:15

... table as real input data The imaginary components of the input sine data are set to zero The input data are arranged in memory as successive real and imaginary number pairs, as required (assumed) ... Complex_tag {float real,imag;} COMPLEX; #pragma DATA_ALIGN(W,sizeof(COMPLEX)) #pragma DATA_ALIGN(samples,sizeof(COMPLEX)) #pragma DATA_ALIGN(h,sizeof(COMPLEX)) COMPLEX W[PTS/RADIX] ; //twiddle array ... functions are used again in this project (see also Examples 6.3 and 6.4) graphicEQcoeff.h contains three sets of coefficients; lowpass at 1.3 kHz, bandpass between 1.3 and 2.6 kHz, and highpass at 2.6...

Ngày tải lên: 07/11/2013, 10:15

... capability with progam adaptive.c 224 Adaptive Filters Interactive Adaptation A version of the program adaptc.c in Figure 7.6, with graphics and interactive capabilities to plot the adaptation process ... implements an adaptive FIR predictor for the cancellation of a narrowband interference in the presence of a wideband signal The desired wideband signal with an additive narrowband interference is delayed ... converging to the desired cosine signal Change the adaptation or convergence rate b to 0.02 and verify a faster rate of adaptation 222 Adaptive Filters //Adaptc.c Adaptation using LMS without TI’s compiler...

Ngày tải lên: 07/11/2013, 10:15

... B2 and B3 *A4 ++ ,A3 :A2 *B4++,B3:B2 ;64-bit data in A2 and A3 ;64-bit data in B2 and B3 *A4 ++ ,A3 :A2 *B4++,B3:B2 ;64-bit data in A2 and A3 ;64-bit data in B2 and B3 *A4 ++ ,A3 :A2 *B4++,B3:B2 A1 ,1 ,A1 ... data in A2 and A3 ;64-bit data in B2 and B3 ;decrement count *A4 ++ ,A3 :A2 *B4++,B3:B2 A1 ,1 ,A1 LOOP ;64-bit data in A2 and A3 ;64-bit data in B2 and B3 ;decrement count ;branch to LOOP *A4 ++ ,A3 :A2 ... floating-point MVK ZERO [A1 ] 200, A1 A7 ;count into A1 ;init A7 for accum LDW LDW NOP MPYSP NOP ADDSP SUB B NOP LOOP S1 L1 D1 D1 *A4 ++ ,A2 *A8 ++ ,A3 A2 ,A3 ,A6 A6 ,A7 ,A7 A1 ,1 ,A1 LOOP ;A2 =32-bit data...

Ngày tải lên: 14/12/2013, 14:15

... these data so that the data can be accessed by other applications on the PC host CCS has an interface that allows PC applications to access buffered RTDX data Visual Basic Excel was used (LABVIEW, ... Filter The transmit quadrature mirror filter (QMF) takes a 16-bit audio signal sampled at 16 kHz and separates it into a low band and a high band The filter coefficients represent a 4-kHz lowpass filter ... vector, and l a scale factor The correlation matrix C is computed as an average of the signal correlation over several samples: Image Processing 265 FIGURE 9.4 Block diagram of adaptive temporal attenuator...

Ngày tải lên: 14/12/2013, 14:15

... Real-time analysis can be performed using real-time data exchange (RTDX) associated with DSP/BIOS (Appendix G) RTDX allows for data exchange between the host and the target and analysis in real ... [22] and a 16-bit codec AD535 for input and output The onboard codec AD535 [34] uses a sigma–delta technology that provides analog-to-digital conversion (ADC) and digital-to-analog conversion (DAC) ... A/ D-based boards in the megahertz sampling rate range are currently available The basic system consists of an analog-to-digital converter (ADC) to capture an input signal The resulting digital...

Ngày tải lên: 26/01/2014, 07:20

... sideband signal, or at 1600 and 2400 Hz Load the GEL file AM.gel, increase the variable amp, and verify the baseband signal being modulated Note that the product of the carrier and baseband signals ... the AD535 codec As a result the ramp generated has a negative slope, with a peak-to-peak value of approximately 1.4 V Replace the value 0x20 with –0x20 and verify that a ramp is generated with a ... example illustrates an amplitude modulation (AM) scheme Figure 2.24 shows a listing of the program AM.c, which generates an AM signal The buffer baseband contains 20 points and represents a baseband...

Ngày tải lên: 26/01/2014, 07:20

... Programs/Files on Accompanying Disk ADAPTER ADAPTC ADAPTDMV ADAPTIVE ADAPTSH ADAPTTB ADAPTDMV ADAPTSH ADAPTDMV ADAPTSH ADAPTTB SIN312 SIN31 2A HCOS312 HCOS31 2A COS31 2A DPLUSN DPLUSNA SCDAT SIN1000 ... provides for programmable ADC and DAC rates, and input and output filtering, all on a single chip Software tools for assembling and debugging as well as several applications examples are also included ... (SINE_SG.ASM), ramp (RAMP_SG.ASM), random (RAND_SG.ASM), and sawtooth (SAWT_SG.ASM) Test the sine generator and verify that several sinusoidal signals with different frequencies can be added and the...

Ngày tải lên: 03/07/2014, 16:06

... its operation MOTOR CONTROL ARCHITECTURE USING THE PIC18FXX39 ADCs, I/Os, AUSART, MSSP, Timers Smart Air Handler Application Application Program Interface (API) Parameter Values PWMs Hardware ProMPT™ ... DS0086 1A - page 17 WORLDWIDE SALES AND SERVICE AMERICAS ASIA/PACIFIC Corporate Office Australia 2355 West Chandler Blvd Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support: ... motor rating for Automatic Voltage Compensation The units for SetLineVoltage and SetMotorVoltage must be the same for accurate operation The values passed to SetMotorVoltage and SetLineVoltage can...

Ngày tải lên: 11/01/2016, 14:30

... the data bus ex a CPU with 24 address lines and 16 data lines can provide a total of 224 or 16M bytes of addressable memory Each location can have a maximum of byte of data, since all general-purpose ... CPU and computer Think of data buses as highway lanes The average size of data buses in CPUs varies between and 64 Data buses are bidirectional To receive or send data The processing power of a ... Programming in Assembly and C 8051 Serial Port Programming in Assembly and C Interrupts Programming in Assembly and C 8051 Interfacing to External Memory 8051 Real World Interfacing I: LCD,ADC AND...

Ngày tải lên: 04/10/2013, 19:10

... hand relaxed, and she fell asleep The band of silver paleness along the east horizon made the distant parts of the great plain appear dark and near; and the whole enormous landscape bore that ... boundless and bare The lone and level sands stretch far away. (Percy Bysshe Shelley, Ozymandias) In the above poem, the ruined statue of the pharaoh gradually becomes a general symbol of mutability and ... environment around us and they always have an effect on our way of thinking and our actions In literature, light and darkness may figure as more than mere background, they can make things happen They can...

Ngày tải lên: 22/12/2013, 12:59

... and it can serve as an instrument for teaching skills and facts As all drama teachers and practitioners know, drama games are an invaluable resource for teachers, they fundamental for team building, ... Th Tho K4 8A1 English v Graduation thesis Abstract Aware of the importance of using dialogue and drama in communication and English speaking teaching and learning, the author has carried out ... learning and teaching English Speaking and using Dialogue and Drama at Nghen High School in Ha Tinh province Chapter named as Suggested Dialogue and Drama Activities for Speaking Classes at High Schools...

Ngày tải lên: 27/12/2013, 20:26

... permanent magnets of the rotor : where L, and M, are the self-inductance and the mutualinductance of the stator coils Since we assume a constant airgap and no saturation, L, and M, are constant ara arb ... on a coordinate transformation and an input transformation as well But the main advantage of the Park transformation is to define an internal state variable which is physically meaningful : that ... The airgap length is constant and large since the magnets are surface mounted and have the same permeability as air As a result, the armature reaction is negligible The magnetic circuit has an...

Ngày tải lên: 03/01/2014, 19:44

... that the debate lacks a discussion on what tools, conceptual and material, would facilitate the teachers’ encounters and creation of a new pedagogy and activity Based on an activity theoretical ... tool-mediated, and object-oriented activities.7 This implies an approach to change as an integral part of practice, and that a changed view is a result of a transformed activity rather than a precondition ... cultural-historical activity theory and was carried out as participant observation and action research The study addresses the question of the potentials and alternative goals for change and development of the...

Ngày tải lên: 16/01/2014, 16:33

... of an aggregated portfolio of Sandra Gaisser Christoph Memmel trading books – a multivariate nonparametric approach 08 2009 Rafael Schmidt Carsten Wehn Financial markets’ appetite for risk – and ... fundamental values of the oil price 33 2009 Mathias Hoffmann Analyse der Übertragung US-amerikanischer Schocks auf Deutschland auf Basis eines FAVAR Sandra Eickmeier Ulf von Kalckreuth Tobias ... interest rate scenario is the worst one for a bank? Evidence from a tracking bank approach for German savings and cooperative banks International Journal of Banking, Accounting and Finance 1(1),...

Ngày tải lên: 16/02/2014, 06:20

... international average on both academic and applied assessments of reading, math, and science, and rank among the lowest of more than 20 economically DEMOGRAPHIC CHALLENGES Favorable demographic and educational ... failure based on a number of parental and family circumstance factors were enrolled in the Carolina Abecedarian program The infants, who were primarily African American, either received early care and ... educational attainment to better health and healthy behaviors, such as less smoking.92 Head Start Evaluations of public programs also have shown that early education can boost children’s early academic...

Ngày tải lên: 20/02/2014, 20:20