Implementation of the Double-Precision Complex FFT for the TMS320C54x DSP (Rev. B)
Texas InstrumentsA double-precision complex Fast Fourier Transform (FFT) C-callable code library has been developed for the Texas Instruments (TI)(tm) TMS320C54x fixed-point digital signal processor (DSP). The library includes routines and the necessary 32-bit coefficients to process both the FFT and the inverse FFT (IFFT) for 32-bit complex-valued input data. The routines can accommodate input data lengths of 8
Implementation of Programmer for Serial Bootloaders on TM4C12x Microcontroller
Texas InstrumentsThis application report demonstrates how a programmer can be implemented by using the EKTM4C123GXL LaunchPad to communicate with the serial bootloader (SBL) over UART, I2C or SSI serial peripherals of
Implementing Field-Oriented Control of AC Motors with the TMS320C25 DSP
Texas InstrumentsThe field-oriented theory is the base of a special control method for induction motor drives. With this control method induction motors can successfully replace expensive DC motors. Induction motors require complex control algorithms because there is no linear relationship between the stator current and either the torque or the flux. This means that it is difficult to control the speed or the to
AN098 - Layout Review Techniques for Low Power RF Designs (Rev. A)
Texas InstrumentsAN098 - Layout Review Techniques for Low Power RF Designs JAJA443
A Third Generation Timing Controller And Column Driver Architecture Using Point-to-Point Differential Signaling
Texas InstrumentsMany assume LCDs will quickly dominate the TV market by simply scaling existing LCD monitor panels to wider formats (e.g. 16:9 HDTV) and larger sizes. However, a number of TV requirements push beyond the state-of-the-art monitors of today; response time, brightness, contrast, color envelope, color temperature, and progressive scan-and-hold issues require a reengineering of the monitor solution.
Building upon the strengths of National’s LVDS and RSDS technology solutions in digital video-data communications, we have created a completely new architecture that fully addresses the needs of TV while supporting existing platforms. The Point-to-Point Differential Signaling (PPDS TM) architecture is more than a data link between the timing controller and the column driver. It is an architecture that supports very large displays with features like multiple windows each with its own gamma, various gamma optimizations, color balance at every gray level, minimal bezel size, a 30-bit and beyond color path to the display surface, four-color mosaics and numerous other benefits.
AN-438 Low Power RS-232C Driver and Receiver in CMOS (Rev. B)
Texas InstrumentsThis application report sets out to describe the new innovative low power CMOS RS-232C driver andreceiver IC's introduced by Texas Instruments with particular reference to the EIA RS-232C standard.Comparison will also be made with existing bipolar driver and receiver circuits.
Using Dyn Voltge Positio to Reduce Num of Output Caps in Micropr Pwr Sup (Rev. C)
Texas InstrumentsThe relatively large steady-state window and the relatively small transient window for the core voltage of amodern advanced microprocessor make attractive implementation of the dynamic voltage positioningtechnique. By employing that technique significant cost savings can be realized due to the reducednumber of output bulk capacitors. Careful consideration of all sources of error is necessar
A Universal Telecommunications Hot Swap Device Family
Texas InstrumentsThis application note describes how to design a controlled current hot swap circuit with the Texas Instruments TPS2390 family of hot swap power managers.
3.6V ? 5.5V Input, LDO Reference Design for Stellaris? ARM? Cortex?-M3 MCU's
Texas InstrumentsTPS78233 3.6V ? 5.5V Input, LDO Reference Design for Stellaris? ARM? Cortex?-M3 MCU's Reference Design For Stellaris
Going to Production With the bq274xx Family of Gas Gauges
Texas InstrumentsThis application report presents a strategy for high-speed economical calibration and production programming of the bq274xx single-cell gas gauge. Flowchart examples are provided along with step-by-step instructions for preparing a calibration data set that is required when creating the Golden Data Flash Image (DFI) that is programmed into all bq274xx devices on the production line.
Powering OMAP?3 With TPS65023: Design-In Guide (Rev. B)
Texas InstrumentsPowering OMAP?3 With TPS65023: Design-In Guide
TLK110 Partial Radiated Emissions and Radiated Immunity Test Report
Texas InstrumentsTI chip model TLK110 48p QFP placed on Evaluation board Model Pc405
SPI Bootloader for Hercules RM46 MCU
Texas InstrumentsThis application report describes how to communicate with the Hercules™ serial peripheral interface (SPI) bootloader. The SPI bootloader is a small piece of code that can be programmed at the beginning of Flash to act as an application loader as well as an update mechanism for applications running on a Hercules Cortex™-R4 based RM46 microcontroller.
A Numerical Solution to an Analog Problem
Texas InstrumentsIn order to derive a solution for an analog circuit problem it is often useful to develop a model. This approach is generally accepted as developing an analytical model. However finding the analytical solution is not always practical or possible as a result of higher-degree polynomials that require further resolution or because of the time needed to develop the solution completely. In these sit
DLP Spectrometer Design Considerations
Texas InstrumentsDLPNIRSCANEVM DLP4500NIR DLPC350 DLP Spectrometer Design Considerations
Electric Power System Coherent Sampling
Texas InstrumentsADS131E08 Electric Power System Coherent Sampling
Sharing Memory With TMS320C54x
Texas InstrumentsThis document describes how to share memory (SRAM FIFO Dual-Port RAM) between a Texas Instruments (TI)(tm) TMS320C54x digital signal processor (DSP) and Host or other DSP.
