PORT17 Guidance for MSP430F663x
Texas InstrumentsMSP430 erratum PORT17 describes the behavior of certain MSP430 devices that can latch-up under specific conditions on the general-purpose I/O pins. This document describes the conditions that can cause the latch up the affected devices and pins and workarounds to prevent the latch up from occurring.Due to the multiple factors that can cause the latch-up to occur it is challenging to provide a
Setting Up TMS320C2xx Interrupts in Assembler or C
Texas InstrumentsTypically interrupts are generated by devices that need to give or take data from the Texas Instruments (TI) (tm) TMS320C2xx for example analog-to-digital (A/D) and digital-to-analog (D/A) converters or other processors. When the C2xx recognizes an interrupt signal it suspends execution of the code specific to the particular interrupt event (Interrupt Subroutine).The C2xx family supports t
Understanding Power Requirements in RS-232 Applications (Rev. B)
Texas InstrumentsThis application note covers the RS-232 circuit functions an explanation of hardware handshaking a stepby step analysis of the hardware handshaking between a local and remote terminal and powerrequirements/dissipation of the DS14C335.
LED Driver Based on UCC28060 Interleaved ACDC Single Stage Flyback
Texas InstrumentsUCC28060 can be implemented in an ACDC single stage solution with transition mode interleaved Flyback topology. This note will discuss the design considerations and give a practical design example.
Configuring the bq2754x Data Flash
Texas InstrumentsThe bq2754x has many data flash constants that can configure the device with various different options for most features. The data flash of the bq2754x is divided into sections which are described in detail in this document.
2-Series-Cell Considerations for Advanced Fuel Gauges
Texas Instruments2-Series-Cell Considerations for Advanced Fuel Gauges
Triple Rate SDI IP FPGA Resource Utilization on SDXILEVK/AES-EXP-SDI-G Ref Dsgn (Rev. A)
Texas InstrumentsTexas Instruments triple rate (SD/HD/3G) SDI demonstration board showcases the LMH0340 serializerLMH0341 deserializer LMH0344 equalizer LMH1981 sync separator LMH1982 clock generator withgenlock and the DS25CP104 cross-point switch. There are many advantages to using the TexasInstruments chipset that include superior performance reduced cost using inexpensive FPGAs such asthe Xilinx S
PCB Design Guidelines for 0.4mm Package-On-Package (PoP) Packages, Part I (Rev. B)
Texas InstrumentsBall grid array (BGA) packages having 0.4mm ball pitch require careful attention to printed circuit board (PCB) design parameters to successfully yield reliable and robust assemblies; the standard rul
Code Composer Studio™ IDE v2.2 Profiler
Texas InstrumentsCode Composer Studio™ IDE v2.2 Profiler Application Report
Using the Capture Units for Low Speed Velocity Estimation on a TMS320C240
Texas InstrumentsEstimating velocity from a digital position sensor is a cost-effective strategy in motor control. Equations are given for two different first order approximations for velocity. This document describes how the capture units are used for low speed velocity estimation on the TMS320C240. Equations are given to demonstrate the techniques used. There is a lengthy code example and timing diagrams to show
Build a 3-Phase Sine Wave Generator with the UAF42
Texas InstrumentsA three phase sine wave oscillator can be built using one UAF42 state variable filter along with some resistors and diodes. Three output nodes are available; highpass out bandpass out and lowpass out. The signal at the bandpass and lowpass out nodes are 90° and 180° out of phase respectively with the highpass out node. An on-chip auxiliary op amp is available for use as a buffer or gain
AN-1414 LM1770 Design Reference (Rev. A)
Texas InstrumentsThis application report presents several reference designs that can be used to implement the TexasInstruments LM1770 Synchronous Buck Controller in a wide variety of configurations.
Analog Applications Journal, Q3, 1999
Texas InstrumentsAnalog Applications is a collection of analog application notes designed to give readers a basic understanding of TI products and to provide simple but practical examples for typical applications. Wri
Safety Manual for TPS65381-Q1 Multi-Rail Power Supply (Rev. A)
Texas InstrumentsTPS65381 Safety Manual for TPS6538x Multi-Rail Power Supply Family
AN-447 Protection Schemes for BI-FET Amplifiers and Switches
Texas InstrumentsApplication Note 447 Protection Schemes for BI-FET Amplifiers and Switches
AN-521 Dual Tone Multiple Frequency (DTMF)
Texas InstrumentsThe DTMF (Dual Tone Multiple Frequency) application is associated with digital telephony, and provides two selected output frequencies (one high band, one low band) for a duration of 100 ms. A benchmark subroutine has been written for the COP820C/840C microcontrollers, and is outlined in detail in this application note. This DTMF subroutine takes 110 bytes of COP820C/840C code, consisting of 78 bytes of program code and 32 bytes of ROM table. The timings in this DTMF subroutine are based on a 20 MHz COP820C/840C clock, giving an instruction cycle time of 1 ms.
Upgrading to DSP/BIOS II
Texas InstrumentsDSP/BIOS II adds numerous functions to the DSP/BIOS kernel while maintaining 100% Application Programming Interface (API) compatibility with DSP/BIOS I. In addition new functionality has been added to Code Composer Studio?. This application note describes the transition from DSP/BIOS I to DSP/BIOS II and focuses on the enhancements and changes to existing DSP/BIOS I functions.
How to Design an LED Driver Using the TPS92510 (Rev. A)
Texas InstrumentsThis design example consists of a single string of ten LEDs driven with 1-A forward current. This design example is a supplement to the TPS92510 data sheet and provides step-by-step instructions for optimizing an LED driver design. In particular, detailed attention is given to compensating and measuring the feedback loop, implementing the thermal foldback protection, and designing the printed-circuit board layout. Graphs are provided showing the design example test data.
