MSP430G2x52, MSP430G2x12 Microcontrolador de señal mixta
PDF, 143 Kb, Revisión: A, Archivo publicado: marzo 27, 2015
The timer modules on MSP430™ ultra-low power microcontrollers often base several different outputs off of a single time base – a single timer period. This is especially true for the typical implementation of pulse width modulation (PWM) signals on the MSP430 devices, where one capture compare register (TxCCR0) sets the period, and the rest (TxCCRx) simply set different duty cycles. However, in som
PDF, 1.1 Mb, Archivo publicado: mayo 21, 2013
MSP430в„ў microcontroller based capacitive touch buttons can offer increased performance when properly optimized and tuned for their specific application. Performance benefits that result from button optimization can include, but are not limited to, decreased power consumption, improved response time, and the ability to grow a design to include more buttons. This application report provides th
PDF, 1.0 Mb, Archivo publicado: mayo 21, 2013
This application report provides guidelines on how to tune capacitive touch sliders and wheels running on the MSP430в„ў microcontrollers. It identifies the hardware and software parameters as well as explains the steps used in tuning sliders and wheels.The slider and wheel tuning is based on the APIs defined within the Capacitive Touch Sense Library (CAPSENSELIBRARY).
PDF, 784 Kb, Revisión: A, Archivo publicado: nov 17, 2015
Capacitive touch detection is sometimes considered more art than science. This often results in multiple design iterations before the optimum performance is achieved. There are, however, good design practices for circuit layout and principles of materials that need to be understood to keep the number of iterations to a minimum. This design guide describes a process for creating and designing capac
PDF, 373 Kb, Revisión: B, Archivo publicado: agosto 14, 2013
This application report discusses how to design a simple and ultra low-power grip detector BoosterPack for the MSP430 LaunchPadв„ў. The PINOSC feature in every msp430G2xx2 and msp430G2xx3 device makes it possible to eliminate all the external components when implementing a capacitive touch design. All the components used in the grip detector, such as capacitive sensors, LEDs are all integrate
PDF, 237 Kb, Revisión: E, Archivo publicado: mayo 4, 2018
This application report helps to ease the migration from MSP430F2xx flash-based MCUs to the MSP430FR4xx and MSP430FR2xx family of FRAM-based MCUs. It discusses programming system hardware core architecture and peripheral considerations. The intent is to highlight key differences between the two families. For more information on the use of the MSP430FR4xx and MSP430FR2xx devices see the MSP430
PDF, 179 Kb, Revisión: E, Archivo publicado: nov 3, 2016
This application report enables easy migration from MSP430F2xx flash-based MCUs to the MSP430FR58xx/FR59xx/68xx/69xx family of FRAM-based MCUs. For the migration guide to MSP430FR57xx, see Migrating From the MSP430F2xx Family to the MSP430FR57xx Family. It covers programming, system, and peripheral considerations when migrating firmware. The intent is to highlight key differences between the two f
PDF, 821 Kb, Revisión: B, Archivo publicado: agosto 24, 2018
PDF, 228 Kb, Archivo publicado: mayo 31, 2006
While spread-spectrum clocking has long since been used in processor and memory clock trees, there are many other clocked systems, such as power supplies or switch-mode amplifiers, that continue to use a single-frequency clock. This can, in turn, generate significant EMI and can make meeting governmental regulations for EMI challenging. These regulations typically set a limit on peak energy within
PDF, 124 Kb, Archivo publicado: feb 19, 2004
PDF, 1.2 Mb, Archivo publicado: oct 10, 2003
This application report describes how to build an isolated FET interface for the MSP430 Flash Emulation Tool (FET). When developing and debugging line-powered MSP430applications such as motor control, electricity energy meters, power monitoring systems etc. it is important to have electrical isolation for the development tool such that the personnel involved and the connected electronic equipmen
PDF, 63 Kb, Archivo publicado: enero 30, 2001
This application report demonstrates a digital technique to compensate and calibrate the phase shift of a current (or voltage) transformer used in electric power of energy measurement. Traditional analog compensation is replaced by a digital finite impulse response (FIR) filter. A technique emulating a non-unity power factor (non-UPF) load makes the calibration fully automatic. The calibration tim
PDF, 233 Kb, Archivo publicado: oct 1, 1997
The first part of the Application Report describes the generation of DTMF signals using the Microcontroller MSP430. Following an explanation of the most important specifications which are involved, the theoretical and mathematical processes will be discussed with which sinusoidal waveforms can be derived from square-wave signals, by making use of appropriate analog filters. Tested examples of soft
PDF, 91 Kb, Archivo publicado: oct 12, 1999
This application report describes voltage and current measurement methods using the MSP430 universal timer/port module. The report explains the two measurement methods (charge and discharge) and shows how to measure voltage and current. The equations for the calculations are also given. Further sections show additional applications such as the measurement of two voltage inputs, bridge arrangem
PDF, 306 Kb, Archivo publicado: jun 30, 2004
This application report describes how to compare ultralow-power MCUs. It discusses the key differences between popular low-power MCUs and how to interpret features and specifications and apply them to application requirements.
PDF, 184 Kb, Archivo publicado: nov 15, 2004
This report details the factors that influence achievable accuracy of the low frequency oscillator, specifically for real-time clock (RTC) applications. The intent of this application report is to provide an understanding of MSP430-specific factors influencing real-world achievable RTC accuracy using the LFXT1 oscillator with a standard 32.768 kHz watch crystal and present measurement data support
PDF, 5.5 Mb, Archivo publicado: enero 21, 2000
MSP430 Metering Application Report
PDF, 49 Kb, Archivo publicado: oct 18, 2000
A simple, efficient, low-cost, boost converter to take 1.5 V from a single type-AA alkaline battery to the operating voltage required by the MSP430 family of ultralow-power microcontrollers is described. Expected battery life is up to 1000 hours.
PDF, 220 Kb, Archivo publicado: sept 13, 2006
Digital 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, i
PDF, 110 Kb, Archivo publicado: dic 14, 1998
This application report describes a software program for performing V.23 FSK modem transceiver functions using an MSP430 microcontroller. It makes use of novel filter architecture to perform DSP functions on a processor with only shift and add capabilities.
PDF, 125 Kb, Archivo publicado: nov 4, 2004
Cyclic Redundancy Code (CRC) is commonly used to determine the correctness of a data transmission or storage. This application note presents a solution to compute 16-bit and 32-bit CRCs on the ultra low-power TI MSP430 microcontroller for the bitwise algorithm (low memory, low cost) and the table-based algorithm (low MIPS, low power). Both algorithms are presented in C and MSP430 assembly. Test co
PDF, 168 Kb, Archivo publicado: feb 28, 2002
This application note describes how C and assembler code can be used together within an MSP430 application. The combination of C and assembler benefits the designer by providing the power of a high-level language as well as the speed, efficiency, and low-level control of assembler.
PDF, 39 Kb, Archivo publicado: oct 13, 2006
Many applications require the generation of random numbers. These random numbers are useful for applications such as communication protocols, cryptography, and device individualization.Generating random numbers often requires the use of expensive dedicated hardware. Using the two independent clocks available on the MSP430F2xx family of devices, it is possible to generate random numbers without s
PDF, 104 Kb, Archivo publicado: agosto 3, 2006
PDF, 44 Kb, Archivo publicado: nov 16, 2000
This application report describes how to interface an MSP430 mixed-signal microcontroller with the TLC549 and TLV1549 3-volt A/D converters. This report is written for the MSP430x11x(1) family, but can be adapted to any MSP430 derivative.
PDF, 82 Kb, Revisión: A, Archivo publicado: oct 13, 2000
The TMS320C5000в„ў family of digital signal processors (DSPs) features Host Port Interface Controllers (HPI) and Direct Memory Access Controllers (DMAC) for efficient data movement without any CPU involvement. The HPI enables the DSP to interface to host processors (typically microcontrollers) bidirectionally with minimal or no external interface logic. This application report presents a hardw
PDF, 770 Kb, Archivo publicado: enero 16, 2008
This application report discusses the design of RC-type capacitive single-touch sensors using the MSP430 microcontroller. The MSP430 has some unique features that make it suitable for interfacing with capacitive-touch sensors. The RC-type method does not need special peripherals and can be implemented with all devices in the MSP430 product family. This method is also inherently low power and can
PDF,
19 Kb, Revisión:
H, Archivo publicado:
jul 14, 2010This application report has been superseded by the document shown below. Information previously contained in this application report can be found by clicking on the following links.- MSP430 Programming Via the JTAG Interface User's Guide Download MSP430 Programming Via the JTAG Interface (PDF) Download
PDF, 128 Kb, Archivo publicado: sept 29, 1999
This application report describes a software implementation of the system management bus (SMBus) for the MSP430 microcontroller. It includes all master protocols, an interrupt-driven slave, and master usage examples. SMBus is derived from the I2C and is commonly used in smart batteries and other system devices.
PDF, 62 Kb, Revisión: A, Archivo publicado: jul 17, 2006
This application report covers software techniques and topics of interest to all MSP430 programmers. The first part of the document discusses the MSP430 standard interrupt-based code flow model, recommended for the vast majority of applications. The next part discusses a handful of techniques that should be considered by any developer that sets out to develop an MSP430 application. Using these met
PDF, 171 Kb, Revisión: A, Archivo publicado: abr 14, 2008
Flash memory is a widely used, reliable, and flexible nonvolatile memory to store software code and data in a microcontroller. Failing to handle the flash according to data-sheet specifications may result in unreliable operation of the application. This application report explains the physics behind these specifications and also gives recommendations for correct MSP430 flash handling. All examples
PDF, 458 Kb, Revisión: A, Archivo publicado: jun 14, 2010
This reference design is presented to help application designers and others who are trying to use the MSP430 in a system with an input voltage in the range of 3.6 V to 6 V with the primary design objective to minimize solution size as well as to maintain high efficiency and long battery life.
PDF, 475 Kb, Archivo publicado: marzo 27, 2008
The MSP430 family of microcontrollers, as part of its broad portfolio, offers both read-only memory (ROM)-based and flash-based devices. Understanding the MSP430 flash is extremely important for efficient, robust, and reliable system design. Data retention is one of the key aspects to flash reliability. In this application report, data retention for the MSP430 flash is discussed in detail and the
PDF, 64 Kb, Archivo publicado: dic 31, 2005
PDF, 134 Kb, Archivo publicado: feb 20, 2002
Often in applications with keypads, the condition can occur where a key can be held or stuck down, causing excess current consmption and reducing the battery life of a battery-operated product. This application report shows a solution. The keypad interface in this report, based on the MSP430, draws .1uA while waiting for a key press, is completely interrupt driven requring no polling, and consum
PDF, 421 Kb, Archivo publicado: oct 1, 2002
The interfacing of the 3-V MSP430x1xx and MSP430x4xx microcontroller families to circuits with a supply of 5 V or higher is shown. Input, output and I/O interfaces are given and explained. Worse-case design equations are provided, where necessary. Some simple power supplies generating both voltages are shown, too.
PDF, 95 Kb, Archivo publicado: marzo 29, 2007
Digital 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 a
PDF, 82 Kb, Archivo publicado: nov 10, 2005
Digital Fan Control with Tachometer using MSP430 Application Report
PDF, 961 Kb, Revisión: B, Archivo publicado: jun 14, 2010
This reference design is presented to help application designers and others who are trying to use the MSP430 in a system with an input voltage in the range of 1.8 V to 5.5 V, and who must increase the application run time by making use of the complete battery voltage range while still maintaining high efficiency over the entire battery life.
PDF, 121 Kb, Revisión: A, Archivo publicado: jun 14, 2010
This reference design is presented to help application designers and others who are trying to use the MSP430 in a system that requires a very low input voltage range while also maintaining high efficiency. Battery life is extended as well as a result of the low quiescent current (5 mA) and ultra-low shutdown current (5 nA) of the TPS61097-33. This particular design allows for an input voltage betw
PDF, 37 Kb, Revisión: A, Archivo publicado: mayo 19, 2003
The MSP430 series of microcontrollers are ideal in applications where battery life is critical. These microcontollers require only 0.1?A of current in low-power RAM retention mode; In this mode the microcontroller must have power to retain volatile memory. In some systems with charge pumps, the TPS3619 can be used to shut down the charge pump, saving system power consumption.
PDF, 837 Kb, Revisión: F, Archivo publicado: sept 6, 2016
PDF, 330 Kb, Revisión: C, Archivo publicado: enero 12, 2012
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- Semiconductors> Microcontrollers (MCU)> MSP430 ultra-low-power MCUs> MSP430G2x/i2x
