IEEE 1588 Synchronization Over Standard Networks Using the DP83640 (Rev. A)
Texas InstrumentsThis application report describes a method of synchronization that provides much more accuratesynchronization in systems with larger PDV. The method described attempts to detect minimum delays or'lucky packets'. The method also takes advantage of the DP83640 clock control mechanism to separatelycontrol clock rate and time corrections minimizing overshoot or wild swings in the accuracy of t
Understanding the Davinci Resizer (Rev. B)
Texas InstrumentsThe image-scaling operation is one of the most commonly used video and imaging processing functions. The resizer hardware module in the DaVinci™ video processing subsystem (VPSS) provides the scaling capability in hardware therefore off-loading the system for other processing tasks. To achieve good video quality while maintaining good overall system performance a better understanding of th
AN-42 IC Provides On-Card Regulation for Logic Circuits (Rev. B)
Texas InstrumentsThis application report provides on-card regulation for logic circuits.
Using the TMS320C5402 DSK Sine Program and evmdsk54x.dll
Texas InstrumentsThe TMS320C5402 DSP starter kit (DSK) for Code Composer Studio? contains evmdsk54x.dll a Windows library and a header file evmdsk54xdll.h which allow you to use and write windows programs that can communicate with the TMS320C5402 DSK. An example program sine is included with Code Composer Studio to demonstrate howevmdsk54x.dll can be used. The example contains a both WIN32 graphical us
TMS320C6000 Expansion Bus Interface to PCI Bus Through PLX PCI9080 (Rev. A)
Texas InstrumentsThis application report describes how to interface the Texas Instruments (TI) TMS320C6000™ digital signal processor (DSP) expansion bus to the peripheral component interconnect (PCI) bus using the PCI9080 bridge chip from PLX Technologies.A block diagram of the interface Information required to configure the PCI9080 Timing diagrams illustratin
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High Speed Clock Distribution Design Techniques for CDC 509/516/2509/2510/2516 (Rev. A)
Texas InstrumentsThe memory bandwidth of high performance microprocessors is increasing at a rapid rate and the future memory bandwidth requirements are expected to keep increasing. The bandwidth requirements of RAM will be satisfied in the near term by using Synchronous DRAM. The need to drive multiple DRAM chips at high speeds with low skew necessitates the use of clock distribution devices with Phase Locked Loo
Extended-Precision Complex Radix-2 FFT/IFFT Implemented on TMS320C62x (Rev. A)
Texas InstrumentsThe limited dynamic range of a fixed-point DSP causes accuracy problems in Fast Fourier Transform (FFT) calculation. This is due to quantization and the scaling that has to be applied to prevent output overflow. Hence there is a need to perform the calculations in extended precision especially for large FFT sizes. Highly optimized extended-precision assembly routines for the FFT and its inverse
Video Restoration on a Multiple TMS320C40 System
Texas InstrumentsThis document describes a parallel video restoration system for restoring old motion picture archives. A Gaussian-weighted bi-directional 3-D auto-regressive (B3D-AR) algorithm is used to alleviate the presence of noise. The equations implemented by the system are presented. Parallel implementation and load balancing on an array of fifteen TMS320C40 parallel floating-point digital signal processo
Development of an Active Noise Controller in the DSP Starter Kit
Texas InstrumentsThis paper shows the implementation of a low cost active noise control (ANC) on the DSP Starter Kit TMS320C26 [1]. The ANC system uses a filtered-x LMS adaptive algorithm [2] with on/off-line path cancellation estimates [345]. The system consists of an error microphone plus a signal amplifier two powered speakers (primary and secondary source) and the controller (the DSP Starter Kit). The t
Guide for Manufacture Testing of RF4CE Products
Texas InstrumentsThis application report describes a sample implementation of a manufacturing line test program for RF4CE products. It is based on RemoTI-Linux which is the Linux host driver for CC253x RemoTI Network Processor (RNP). It includes the ability to setup a fake pairing between the remote control and target side how to enter test mode how to change RF parameters and so forth. It helps customers to u
DN020 -- Programming Output Power on CC2430
Texas InstrumentsThis document gives a complete overview of the register settings required to adjust the output power of the CC2430 device. The figures and tables within this document include typical output power harmonics and current consumption at the different register settings. There are also schematics showing the power amplifier for CC2430.
AN104 -- TDK Corporation balun optimized for CC253x
Texas InstrumentsCC2530 CC2540 CC8520 AN104 -- TDK Corporation balun optimized for CC253x
Current Limit Foldback Improves Short Circuit Protection in LM274X Family (Rev. B)
Texas InstrumentsThis application report discusses the function of the low side current limit used in the LM274X andpresents a simple method to enhance the short-circuit protection. the current limit is required to protect thepower components from thermal stress which can reduce life span. Typically high side current limitdesigns require an internal rising edge blanking time or external filter to avoid no
TMS320C6474 Module Throughput Application Report
Texas InstrumentsThis document provides information on the C6474 module throughput.
