Generating a PWM Signal Modulated by an Analog Input
Texas InstrumentsThis EVM application converts an input value with the analog-to-digital converter (ADC) module of the Texas Instruments (TI)(tm) TMS320F240 Evaluation Module (EVM) and outputs a pulse width modulated (PWM) signal corresponding to the digital conversion of the analog input.
AN-184 References for A/D Converters (Rev. B)
Texas InstrumentsThis application note provides an indepth discussion of design references for A/D converters.
Stellaris® Graphics Library Display Drivers (AN01287) (Rev. A)
Texas InstrumentsLM3S families, LM4F families Stellaris® Graphics Library Display Drivers an01287.pdf
Online Stack Overflow Detection on the TMS320C28x DSP
Texas InstrumentsA stack overflow in an embedded DSP application generally produces a catastrophic software crash due to data corruption lost return addresses or both. Traditional off-line approaches to sizing a stack during development such as filling with a know value or estimating based on code content are not 100% reliable. Therefore programmers often feel compelled to reserve larger stack sizes than are
EDMA v3.0 (EDMA3) Migration Guide for TMS320C645x DSP
Texas InstrumentsThe TMS320C645x devices introduce a newly designed Enhanced Direct Memory Access (EDMA3). The EDMA3 has many new features that improve system performance and enhance debugging capabilities. This docum
Digital Stethoscope Implementation on TMS320C5515 DSP Medical Development Kit (Rev. A)
Texas InstrumentsThe medical development kit (MDK) provides a development platform to TI medical customers third parties and other developers. This application report focuses on the C5515 MDK; however the analog front ends that are included can also be used with other platforms.
Please be aware that an important notice concerning availability standard warranty and use in critical applications of Texas Ins
TRF7960A Firmware Design Hints
Texas InstrumentsThis application report is a reference for the firmware developer using the TRF7960A in conjunction with microcontroller (for example an MSP430 or ARM device). This document supersedes TRF796x Software Design Hints (SLOA153).
Using the TPS5430 As An Inverting Buck Boost Converter (Rev. A)
Texas InstrumentsThe wide input voltage range SWIFT™ dc/dc converters are used typically as step-down converters where the derived output is a positive voltage less than the input voltage source. In some cases it may be required to generate a negative voltage from the input voltage source. In such instances it is possible to configure the TPS5430/20/10 devices in an inverting buck-boost topology where the outpu
Wave Digital Filtering Using the MSP430
Texas InstrumentsDigital filtering is an integral part of many digital signal processing algorithms. Digital filters are characterized as either recursive [infinite impulse response (IIR)] or non-recursive [finite impulse response (FIR)] filters. IIR filters require a smaller order for the same set of specifications compared to FIR filters, while FIR filters provide a linear phase property. However, IIR filters, if not designed properly, tend to be unstable and use coefficients that are difficult to implement. This application report discusses the design of a certain type of IIR digital filter with excellent stability properties, known as a Lattice Wave Digital Filter (LWDF), given a set of analog filter specifications. An elementary knowledge of filters is sufficient to understand the design of LWDF as discussed in this report. The complete design of the basic filters (low-pass, high-pass, and band-pass) is given with examples. Code that implements these LWDFs on the MSP430 CPU is provided with this report.
TSB12LV01B/TSB41AB3 Reference Schematic (Rev. A)
Texas InstrumentsThis application report describes the electrical connections between the Texas Instruments TSB12LV01B and TSB41AB3 for common modes of operation. Use this document in conjunction with the TI application report Recommendations for PHY Layout (SLLA020) to successfully design a 1394 system.The TSB12LV01B is a high-performance general-purpose IEEE 1394-1995 link-layer controller (LLC) with the
Understanding the ADS1252 Input Circuitry
Texas InstrumentsThis application report describes the ADS1252?s input circuit to better illustrate the loading seen by the signal source.
U-514 Using the bq2010 - A Tutorial for Gas Gauging
Texas InstrumentsThe bq2010 Gas-Gauge IC is a complete battery-monitoring product for NiMH and NiCd batteries. This tutorial introduces the bq2010. The tutorial should be used with the bq2010 data sheet when designing with or evaluating the bq2010. It describes capacity monitoring compares Unitrode's gas-gauge solutions to microprocessor-based implementations describes device operation in general terms and addr
TMS320C6747/45/43 Power Consumption Summary
Texas InstrumentsThis application report discusses the power consumption of the Texas Instruments C6747/45/43. Power consumption on the C6747/45/43 devices are highly application-dependent so a spreadsheet is provided to model power consumption for a user's application. To obtain good results from the spreadsheet realistic usage parameters must be entered. The low-core voltage and other power design optimization
Connecting PGA900 Instrumentation Amplifier to Resistive Bridge Sensor
Texas InstrumentsUnderstanding the input and output limitations of an instrumentation amplifier (IA) is important in interfacing a resistive bridge sensor to the PGA900. Adjusting the common mode voltage of the input
TPS5625 Working with TMS320C6201 Applications
Texas InstrumentsThis application report describes a design example that uses fast TPS5625 hysteretic controller and low-cost TL5001A PWM controller installed in SLVP105 and SLVP101 EVMs for a TMS320C6201 DSP application. This design converts 5 V to 2.5 V at 8 A and 3.3 V at 3 A for high-current DSP applications.
TPS2350 With High-Side Switch
Texas InstrumentsThis application note addresses a method to OR the high side of the power source as well as the low side using N-channel MOSFETs, thus replacing diodes D1 and D2 with more efficient MOSFETs in the hig
