A Design of UART Serial Communication between the TMS320C6748 DSP and PC

2013 ◽  
Vol 380-384 ◽  
pp. 3657-3660 ◽  
Author(s):  
Xun Wu ◽  
Yue Song Mei ◽  
Jian Qiao Yu ◽  
Tian Peng Yu ◽  
Jing Xu Li
Keyword(s):  
Digital Signal Processor ◽  
Hot Spots ◽  
Data Transfer ◽  
Serial Communication ◽  
Digital Signal ◽  
The Other ◽  
Design Work ◽  
Research Communication ◽  
Communication Method ◽  
Research And Design

The digital signal processor (DSP: Digital Signal Proceeding) are widely used in industrial, military, communications and the other fields, so the research and design work about DSP is one of the hot spots of scholars and research. Communication and data transfer between the DSP and peripherals is one of the DSP function in the process of using which is the basic but important. This paper introduces a TMS320C6748 DSP with PC serial communication method based on the UART module. The hardware connection and software programming were highlights description. Finally, this paper gives some key code about TMS320C6748 DSP and PC serial communication programming.

Application of Serial Communication Control in the Motion Control System

2011 ◽  
Vol 328-330 ◽  
pp. 1953-1956
Author(s):  
Jian Qun Liu ◽  
Ji Rong Wu ◽  
Dong Xu ◽  
Xiao Li ◽  
Jian Huang
Keyword(s):  
Motion Control ◽  
Digital Signal Processor ◽  
Data Transfer ◽  
Communication Protocol ◽  
Serial Communication ◽  
Digital Signal ◽  
Motion Controller ◽  
Management Platform ◽  
Whole Process ◽  
Data Transfer Protocol

A serial communication protocol according to motion control (MC) system data format has been developed. Based on taking management platform which can be embedded controller or personal computer (PC) as the MC data sending station and motion controller whose core is Digital Signal Processor (DSP) as the MC data receiving station, the detailed situation of how to use the data transfer protocol and the data processing method in MC system is described. Firstly, the organization format of the serial communication data frame is introduced. Then, the relevant saving format of the MC data received by motion controller is described, and the way of how to receive the MC data from serial port is designed. Finally, the whole process of data saving in RAM and data taking out from RAM by motion controller are stated. With the serial communication protocol, a control solution has been provided in the MC system.

Design of a Parallel Processor for Visual Feedback Control Based on the Reconfiguration of Word Length

1996 ◽  
Vol 8 (6) ◽  
pp. 524-530
Author(s):  
Yoshichika Fujioka ◽  
◽  
Nobuhiro Tomabechi
Keyword(s):  
Feedback Control ◽  
Visual Feedback ◽  
Digital Signal Processor ◽  
Delay Time ◽  
Word Length ◽  
Data Transfer ◽  
Digital Signal ◽  
Parallel Processor ◽  
Intelligent Robots ◽  
Visual Feedback Control

In the sensor feedback control of intelligent robots, the delay time must be reduced for a large number of multioperand multiply-additions. To reduce the delay time for the multiply-additions, switch circuit is used to change the direct connection between the multipliers and adders, so that the overhead in data transfer is reduced. To change the word-length of the multi-operand multiply-adders, in addition, the switches are also provided in multipliers and adders. By changing to the short wordlength, the numbers of multiplier and adders can be increased. The performance evaluation shows that the delay time for visual feedback control becomes about 6 times faster than that of a parallel processor approach using conventional digital signal processor (DSPs).

scholarly journals An Advanced Robot Control System Using a DSP-Based Vector Computation Engine

1990 ◽  
Vol 2 (6) ◽  
pp. 445-451
Author(s):  
Nobuaki Takanashi ◽  
Keyword(s):  
Digital Signal Processor ◽  
Position Control ◽  
Transfer Functions ◽  
Data Transfer ◽  
Digital Signal ◽  
Single Chip ◽  
Level Control ◽  
Robot Controller ◽  
Time Motion ◽  
High Level

In this paper, explanations for the configuration and usage of a vector computation engine designed to meet the growing demand for higher-speed operation, more precise robotics and real-time motion simulation are given. Presented is an example of its application to a robot controller making full use of high operational performance. This engine is a floating-point vector processor based on a single-chip digital signal processor (μPD77230) with vector matrix and various functions such as a trigonometrical function, data transfer functions-- being built into an internal instruction memory. In this engine, a multiplication of 4 × 4 element transformation matrices can be done in less than 30pseconds. Active stiffness control operation (involving force control in addition to position control) in less than 0.7 milliseconds. In other words, this single-chip engine makes it possible to achieve high-level control comparable to a minicomputer, thus providing a compact, light and inexpensive robot controller.

Modeling and Measurement of Transients for a 5-Phase Permanent Magnet Tubular Linear Actuator Including Control and Supply System

2014 ◽  
Vol 214 ◽  
pp. 121-129 ◽  
Author(s):  
Andrzej Waindok
Keyword(s):  
Permanent Magnet ◽  
Digital Signal Processor ◽  
Data Transfer ◽  
Digital Signal ◽  
Supply System ◽  
Circuit Model ◽  
Physical Models ◽  
Linear Actuator ◽  
Matlab Simulink ◽  
The Real

The mathematical and physical models of the permanent magnet tubular linear actuator (PMTLA) including control and supply system are presented in the paper. In the numerical analysis a field-circuit model is used. The field model is calculated using the finite element method (FEM), while the circuit model is implemented in Matlab/Simulink software. Both models are coupled using the look-up tables in Matlab software. To verify the calculations, the real drive system has been build. It consists of supply and control system, PC and sensors. The supply system is connected to the controller, which uses the Texas Instruments digital signal processor (DSP) TMS320F2812. The processor is linked with the PC, where the control algorithm as well as the graphical user interface (GUI) have been developed in the Matlab/Simulink package using the extended toolboxes. Data transfer is realized using the LPT port supported by the Real Time Workshop. With using this system, the calculation results obtained from the numerical model have been compared with the measured ones. A good conformity was obtained.

scholarly journals Secure Communication Based on Hyperchaotic Chen System with Time-Delay

2017 ◽  
Vol 27 (05) ◽  
pp. 1750076 ◽  
Author(s):  
Hai-Peng Ren ◽  
Chao Bai ◽  
Zhan-Zhan Huang ◽  
Celso Grebogi
Keyword(s):  
Time Delay ◽  
Digital Signal Processor ◽  
Secure Communication ◽  
Digital Signal ◽  
Dimensional System ◽  
Chen System ◽  
Infinite Dimensional ◽  
Communication Method ◽  
System With Time Delay ◽  
Infinite Dimensional System

An experimental secure communication method based on the Chen system with time-delay is being proposed in this paper. The Chen system with time-delay is an infinite-dimensional system having more than one positive Lyapunov exponent. The message to be transmitted is encrypted using an hyperchaotic signal generated by the Chen system with time-delay and multishift cipher function. This encryption makes difficult for an eavesdropper to reconstruct the attractor by using time-delay embedding techniques, return map reconstruction, or spectral analysis, consequently, improving the security. Simulations and experiments on TI TMS320C6713 Digital Signal Processor (DSP) show improved resilience against attack and the feasibility of the proposed scheme.

Yield Enhancement Study: Process Variation and Design Margins Leading to Timing Issues in the RAM

2000 ◽  
Author(s):  
Srikanth Perungulam ◽  
Scott Wills ◽  
Greg Mekras
Keyword(s):  
Cross Sections ◽  
Digital Signal Processor ◽  
Focused Ion Beam ◽  
Ion Beam ◽  
Random Access ◽  
Digital Signal ◽  
Yield Enhancement ◽  
Final Conclusion ◽  
Stage Separation ◽  
Study Process

Abstract This paper illustrates a yield enhancement effort on a Digital Signal Processor (DSP) where random columns in the Static Random Access Memory (SRAM) were found to be failing. In this SRAM circuit, sense amps are designed with a two-stage separation and latch sequence. In the failing devices the bit line and bit_bar line were not separated far enough in voltage before latching got triggered. The design team determined that the sense amp was being turned on too quickly. The final conclusion was that a marginal sense amp design, combined with process deviations, would result in this type of failure. The possible process issues were narrowed to variations of via resistances on the bit and bit_bar lines. Scanning Electron Microscope (SEM) inspection of the the Focused Ion Beam (FIB) cross sections followed by Transmission Electron Microscopy (TEM) showed the presence of contaminants at the bottom of the vias causing resistance variations.

An Enhanced Cloud Security using Quantum Teleportation

2015 ◽  
Vol 3 (1) ◽  
Author(s):  
D. Sowmya ◽  
S. Sivasankaran
Keyword(s):  
Quantum Key Distribution ◽  
Quantum Teleportation ◽  
Quantum Physics ◽  
Communication Channel ◽  
Data Transfer ◽  
Cloud Security ◽  
The Other ◽  
Cloud Environment ◽  
Quantum Bits ◽  
Quantum Parallelism

In the cloud environment, it is difficult to provide security to the monolithic collection of data as it is easily accessed by breaking the algorithms which are based on mathematical computations and on the other hand, it takes much time for uploading and downloading the data. This paper proposes the concept of implementing quantum teleportation i.e., telecommunication + transportation in the cloud environment for the enhancement of cloud security and also to improve speed of data transfer through the quantum repeaters. This technological idea is extracted from the law of quantum physics where the particles say photons can be entangled and encoded to be teleported over large distances. As the transfer of photons called qubits allowed to travel through the optical fiber, it must be polarized and encoded with QKD (Quantum Key Distribution) for the security purpose. Then, for the enhancement of the data transfer speed, qubits are used in which the state of quantum bits can be encoded as 0 and 1 concurrently using the Shors algorithm. Then, the Quantum parallelism will help qubits to travel as fast as possible to reach the destination at a single communication channel which cannot be eavesdropped at any point because, it prevents from creating copies of transmitted quantum key due to the implementation of no-cloning theorem so that the communication parties can only receive the intended data other than the intruders.

scholarly journals Robust Optimal Tracking Control of a Full-Bridge DC-AC Converter

2021 ◽  
Vol 11 (3) ◽  
pp. 1211
Author(s):  
En-Chih Chang ◽  
Chun-An Cheng ◽  
Rong-Ching Wu
Keyword(s):  
Steady State ◽  
Digital Signal Processor ◽  
Tracking Control ◽  
Harmonic Distortion ◽  
Digital Signal ◽  
Fast Convergence ◽  
Solution Quality ◽  
Hybrid Strategy ◽  
Optimal Tracking ◽  
Optimal Tracking Control

This paper develops a full-bridge DC-AC converter, which uses a robust optimal tracking control strategy to procure a high-quality sine output waveshape even in the presence of unpredictable intermissions. The proposed strategy brings out the advantages of non-singular fast convergent terminal attractor (NFCTA) and chaos particle swarm optimization (CPSO). Compared with a typical TA, the NFCTA affords fast convergence within a limited time to the steady-state situation, and keeps away from the possibility of singularity through its sliding surface design. It is worth noting that once the NFCTA-controlled DC-AC converter encounters drastic changes in internal parameters or the influence of external non-linear loads, the trembling with low-control precision will occur and the aggravation of transient and steady-state performance yields. Although the traditional PSO algorithm has the characteristics of simple implementation and fast convergence, the search process lacks diversity and converges prematurely. So, it is impossible to deviate from the local extreme value, resulting in poor solution quality or search stagnation. Thereby, an improved version of traditional PSO called CPSO is used to discover global optimal NFCTA parameters, which can preclude precocious convergence to local solutions, mitigating the tremor as well as enhancing DC-AC converter performance. By using the proposed stable closed-loop full-bridge DC-AC converter with a hybrid strategy integrating NFCTA and CPSO, low total harmonic distortion (THD) output-voltage and fast dynamic load response are generated under nonlinear rectifier-type load situations and during sudden load changes, respectively. Simulation results are done by the Matlab/Simulink environment, and experimental results of a digital signal processor (DSP) controlled full-bridge DC-AC converter prototype confirm the usefulness of the proposed strategy.

High Voltage Driver for RSFQ Digital Signal Processor

2007 ◽  
Vol 17 (2) ◽  
pp. 470-473 ◽  
Author(s):  
Igor I. Soloviev ◽  
M. Raihan Rafique ◽  
Henrik Engseth ◽  
Anna Kidiyarova-Shevchenko
Keyword(s):  
High Voltage ◽  
Digital Signal Processor ◽  
Digital Signal ◽  
Signal Processor
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