IOM-2 Interfacing on the TMS320C54x
Texas InstrumentsThis application report describes an interface design for connecting the synchronous serial port of the TMS320C54x DSP to an IOM-2 serial bus. The optional buffering feature of this peripheral gives an easy connection to all the different data command and communication channels of the IOM-2 bus.
Efficient MSP430 Code Synthesis for an FIR Filter
Texas InstrumentsDigital filtering can be easily accomplished on the MSP430 using efficient multiplication. The tool accompanying this document automatically converts FIR filter coefficients to MSP430 assembly code that can be used in any application. Horner’s method and CSD format is used to accomplish the efficient multiply operations. The performance of the filter on the MSP430 is shown by evaluating the gain across all frequencies. Performance in terms of CPU cycles, code size, and frequency response of low-pass, high-pass, band-pass, band-stop, and notch filters on the MSP430 is shown in Appendix A.
AC Adapter Input Detection for High-Current and High-Voltage Load Switches
Texas InstrumentsTPS3700, TPS25910 AC Adapter Input Detection for High-Current and High-Voltage Load Switches
Dual-Channel VCAs: Methods for Powering Down One Channel
Texas InstrumentsTexas Instruments offers several product groups of highly-integrated voltage-controlled amplifiers (VCAs) including the VCA2611/12/13/16 and the VCA2614/18/19. Both the VCA2611 and the VCA2614 families feature two channels either of which can be powered while powering down the other. This application note outlines two possible approaches to this question and describes the steps needed to assure t
Color-Space Format Conversion Using the TMS320C80 Transfer Controller
Texas InstrumentsThis application report describes the conversion of color-picture data from themacroblock (MB) format used by ITU-T Recommendation H.261 to the format usedby the Texas Instruments (TIE) TMS320C80 family of digital signal processors(DSPs). Conversion is necessary in some instances because of the differencebetween the MB format and the TI format and the necessity of the ?C80 to maintain co
Using the TMS320VC5501/5502 Bootloader (Rev. C)
Texas InstrumentsThis document describes the features of the on-chip bootloader provided with the TMS320VC5501 and TMS320VC5502 digital signal processors (DSPs). Included are descriptions of each of the available boot modes and any interfacing requirements associated with them instructions on generating the boot table and information on the different versions of the bootloader.
This document contains prelimina
Auto-scaling Radix-4 FFT for TMS320C6000 DSP
Texas InstrumentsFixed-point digital signal processors (DSPs) have limited dynamic range to deal with digital data. This application report proposes a scheme to test and scale the result output from each Fast Fourier Transform (FFT) stage in order to fix the accumulation overflow. The radix-4 FFT algorithm is selected since it provides fewer stages than radix-2 algorithm. Thus the scaling operations are minimized
AN-182 Improving Power Supply Reliability with IC Power Regulators (Rev. B)
Texas InstrumentsThis application report discusses improving power supply reliability with IC power regulators.
Ultrasound Scan Conversion on TI's C64x+ DSPs
Texas InstrumentsOne of the recent significant developments in ultrasound is the emergence of portable and handheld ultrasound machines and their rapid acceptance in the market place. Because of their power efficienc
Diode-Based Temperature Measurement
Texas InstrumentsDiodes are frequently used as temperature sensors in a wide variety of moderate-precision temperature measurement applications. The relatively high temperature coefficient of about -2mV/°C is fair
Reference Frameworks for eXpressDSP Software: RF1, A Compact Static System (Rev. D)
Texas InstrumentsReference Frameworks for eXpressDSP Software are provided as starterware for developing applications that use DSP/BIOS and the TMS320 DSP Algorithm Standard (also known as XDAIS). Developers first sel
OA-19 Wideband Op Amp Capable of μPower Operation (Rev. C)
Texas InstrumentsOA-19 Wideband Op Amp Capable of μPower Operation
Interfacing 20-MSPS TLC5510 Flash A/D Converter to 'C2xx & 'C5x Fixed-Point DSPs
Texas InstrumentsINTERFACING 20-MSPS TLC5510 FLASH A/D CONVERTER TO TMS320C2XX AND TMS320C5X FIXED-POINT DSPs
Sensored Field Oriented Control of 3-Phase Induction Motors
Texas InstrumentsThis application report presents a solution to control an AC induction motor using the TMS320F2803xmicrocontrollers. TMS320F2803x devices are part of the family of C2000 microcontrollers which enablecost-effective design of intelligent controllers for three phase motors by reducing the system componentsand increase efficiency. With these devices it is possible to realize far more precise d
Configuring the bq27500 Data Flash (Rev. A)
Texas InstrumentsThe bq27500 has many data flash constants that can configure the device with various different options for most features. The data flash of the bq27500 is split into sections which are described in detail in this document.
Power Solution Using Discrete DC/DC Converters and LDOs (Rev. B)
Texas InstrumentsPower Solution Using Discrete DC/DC Converters and LDOs
Parallel Digital Signal Processing With the TMS320C40
Texas InstrumentsThis paper examines parallel processing using the Texas Instruments TMS320C40 floating-point processor. It demonstrates popular parallel architecture topologies such as hypercube mesh ring and pyramid with the ?C40 and discusses the tradeoffs and performance of these ?C40-based architectures. Thispaper is divided into the following sections: OverviewTells why the ?C40 architecture is ide
Using the TMS320C5402 DMA Channels to Read from the TLV1570 ADC
Texas InstrumentsThis application report presents hardware and software solutions for using the DMA channels of the 16-bit fixed-point TMS320C5402 DSP to collect digital samples from the TLV1570 10-bit 1.25-MSPS 8-channel serial analog-to-digital converter.
Maximum Power Point Tracking With the bq24650 Charger. (Rev. A)
Texas InstrumentsThis application report describes a solution to track the maximum power point of a solar panel using a negative temperature coefficient (NTC) thermistor with the bq24650. The basic functionality of a solar panel is described. The use of a spreadsheet tool to aid in the setup process is described as well.
