The MSP430 is a Texas Instruments low-power microcontroller family.

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Is it possible to measure acceleration in sports activities with an accelerometer

I've been trying to make a simple prototype capable of measuring a punch or a shot put throw with an accelerometer, but suddenly stopped working, and "locked" into a value, has I was testing it. When ...
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50 views

MSP430 Stack pointer and frame pointer behavior

While trying to analyze a simple Assembly file generated through the msp430-gcc, I stumbled upon a set of instructions that I don't understand dealing with the frame pointer and the MSP430's stack ...
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35 views

Program aborts after ISR

First I am new to this and I signed in to get some help on this problem I have been having. I have done so much googling to figure this problem out and with no luck. I am trying to capture humidity ...
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88 views

Best microcontroller for industrial applications [closed]

I have an industrial project requirement to build a device having this functionality: Store Data Send Data to Web Server Device to be placed under scorching sun Sensors - around 5 A Graphical ...
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50 views

MSP430 Timer A interrupt flags are wacko

Trying to setup a timer on my MSP430F5529 that should interrupt after approx. 2 seconds. My initial setup looks like this: ...
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44 views

Controlling LCD with MSP430 via I2C backpack PCF8574

I'm at my wits end with this at the moment. I need to interface my MSP430G2553 with the PCF8574 I2C expander in order to drive an LCD display. So far I've had not much luck at all. There is very ...
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339 views

MSP430 RAM protection

I'm looking at the user guide for the MSP430x5xx family. It says there in section 9.1 that: ...
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38 views

Setting MSP-430 toolchain in linux

Can anybody please guide procedure to setup tool-chain for MSP430 in Linux (particularly Ubuntu)? I am using MSP430 launchpad (MSP-EXP430G2), and I need to setup compiler/build tools and debugger ...
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MSP430 Low Voltage ADC Input Protection

I'm using the MSP430 SD16_A 16 bit Sigma-Delta ADC (page 843) for bipolar differential ADC measurements in a +/- 0.6V range. While the inputs can handle +3.3V, on the negative side the absolute ...
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67 views

#10269 output file exceeds code size limit

Using Code Composer Studio and MSP430F5438A I get that error when compiling, but if I randomly delete some lines of the code, it will work fine. The problem is that I have not finished yet and there ...
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History of the MSP430

This question crossed my mind today. What is the history of the MSP430? When did it start, what did it evolve from, why was it made (i.e. what goals was it trying to achieve/what technical ...
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MSP430 PWM Dead-Time

According to the internet, the MSP430 has no hardware implemented to maintain proper PWM dead-time as the PWM duty cycle is modified. Apparently (and also according to the internet) this feature can ...
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Configuring input on MSP430?

I've been trying to get 2 input push-buttons working on my MSP430 FF529. I've been successful with 1, but not the other, which leads me to think the one not working is broken, since I'm doing the ...
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80 views

MSP430F5529 & Bluetooth module data transfer over UART issue

I'm taking analog input from a sensor and feeding it to the in-built 12-bit ADC on the MSP430. The ADC code tested by itself is performing the A-D conversion correctly and outputting the values as ...
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2answers
107 views

RS485 network failing on replacing SP485 chip with MAX485

I have created an RS485 communication network as shown below. {PC}->[FT232->RS485](120 ohm)<----twisted pair(2 wires)------>(120 ohm)[RS485 -> MSP430] Here PC acts as Master and sends the data ...
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1answer
49 views

MSP430 USCI - Are the interrupt flags still active when interrupts are explicitly disabled

I am using an MSP430 USCI in SPI mode. I would like to confirm my understanding of this: If UCTXIE and UCRXIE are explicitly disabled when the interface is initialized after UCSWRST is cleared the ...
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1answer
81 views

How to blow the MSP430 security fuse

We are making a production product using the MSP430G2231 and want to keep the code a secret. I have searched online and found out that blowing the security fuse disables access to the MCU. Could ...
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974 views

3 Hz from a watch crystal

I have a stepper motor which step angle is 2 degrees. I want to display seconds using a needle attached to this stepper. The watch crystal divides nicely to produce 1Hz pulses, so every second I can ...
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67 views

MSP430 mspdebug eclipse plugin showing wrong values

I'm using eclipse CDT Kepler with MSP430 plugin from xpd (http://forum.43oh.com/topic/1419-eclipse-plugin-for-mspdebug-and-msp430-gcc/) on Xubuntu Linux 14.04 x64 I took msp430gcc compiller and ...
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40 views

Sample externally powered analog sensor with TelosB

This is a newbie question so forgive me for its simplicity I have a FIGARO TGS 2602 Air Contaminant Sensor and would like to sample its analog output using TelosB which is powered by 3V-3.6V max ...
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148 views

Where is the C API reference for the MSP430? CCS version

I see a lot of sample code and tutorials, but where is it documented that symbols (defines) such as P1OUT and P1DIR are ...
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465 views

Why do programs stop watchdog timer on MSP430?

Many sample programs for the MSP430 have their first line as: WDTCTL = WDTPW | WDTHOLD; // Stop watchdog timer Why do they do this?
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MSP430 Pin Variables

I am trying to program an MSP430FR5969 for the first time. I successfully executed and modified a program to blink one of the LEDs connected to P1.0. The relevant predefined variable is P1OUT. The ...
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283 views

Interfacing MSP430 Launchpad with OmniVision Camera Module?

I have seen that it is possible to interface an OmniVision OV2640 camera module with Ardiuno Uno. Would it be possible to interface this Camera Module with an MSP430 Launchpad board to get a video ...
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157 views

MSP430 printf function executes too slow [closed]

I try to use Sky mote (MSP430 F1611 + CC2420) to read the data from I2C sensor with 100Hz sampling frequency and write the data to serial port (USB). I tried a couple of tests and realized that the ...
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382 views

Creating operational MSP430G2553 in Proteus

I'm a bit outside of my experience level with this one. I am attempting to simulate a circuit utilizing the MSP430G2553 in Proteus 8. However, that model is not included in any of the libraries that ...
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473 views

msp430g2553, how can I get a UART baud rate higher than 9600?

I have an msp430g2553 in its launch pad. I have tried using a baud rate of 19200 with the UART and I get gibberish. From what I have found, something with the launchpad or drivers limits the UART baud ...
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Is there a way to prevent code being read from an MSP430 without blowing the fuse?

I was recently involved at a project in a small company where we had fears of someone taking the code from the master chip, an MSP430F2419, and using it for a competing product. We ended up blowing ...
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3answers
943 views

UART Polling vs Interrupt

I have two UART ports on an MSP430 that need to stream data between a Host Controller (Freescale IMX6) and potential devices ...
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144 views

What happens when we write delay instruction twice continuously in an MSP430?

What happens when we write a delay instruction twice continuously in MSP430 code as follows: ...
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861 views

Internal temperature sensor for the MSP430 - energia

I'm trying to use the internal temperature sensor for the MSP430G2553 with energia (a branch of arduino for the TI MSP430 microcontrollers) but to I'm having trouble calibrating it. The solution I've ...
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1answer
310 views

Moving SP and PC using inline assembly in MPS430-GCC

I am writing a simple task scheduler for my MSP430F5529 USB launchpad. I need to update stack pointer(SP), then enable interrupts and then update program counter (PC). But I am getting an error with ...
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320 views

Good flag practices - energia msp430

I'm making a program for the msp430 using energia launchpad, the first code that I had is the following: ...
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Power consumption - Energia Launchpad

I'm working with energia for the launchpad 430 and have a rather specific question to make: is example A the equivalent in power consumption has example B, or is it that B drains more power? Thank ...
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MSP430 blinking led

I started using MSP430 Launchpad and as I was examining the code for blinking a led I found something odd. The code is this and is a ready example: ...
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123 views

Reading Manchester coded data from MSP430 to Android (samsung S3)

I am trying to send digital data from MSP430 to Android phone (Samsung S3) via Mic (headphone jack). I have checked the encoding from MSP430 on oscilloscope and it looks fine [Square wave] with a ...
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202 views

Why is MSP430's Stack Poniter(SP) always alligned to even address?

While I was reading through the MSP430's User's guide, I came to know that its stack pointer is alligned to even address. (Read Pg.189 of http://www.ti.com/lit/ug/slau208m/slau208m.pdf) Why is it so ...
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281 views

Launchpad MSP430 incremental blink with button

I'm new with this. I'm trying to make an incremental blinking LED with every time that I push the button, I'm using Energia and Launchpad MSP430, I don't know if somebody can give a example code to do ...
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226 views

How do professionals deal with prototyping?

Prototyping with real components is very time consuming. In order to save time, I have been looking for a digital circuit simulator, compatible with the MSP430, with no success. How do professionals ...
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167 views

Lots of solder around microcontroller pins--causing issues?

My microcontroller (MSP430G2553) is in a 20 pin socket setting so I did not solder while the microcontroller was in the socket (there was no heat damage). But I did add a lot of solder to at least 6 ...
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131 views

MSP430 GPIO behaviour on power off

I have a simple circuit which contains an MSP430 connected to a DAC8551. I'm using PORT1 so have implemented a bit-banging approach instead of using the USCI module (bad, I know). I've noticed a ...
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252 views

push button issues for MSP430g2553

My circuit is the schematic above, I just recently added the push button in the bottom left (P2.3) and my code goes to crap and I'm receiving/sending junk over UART when P2.3 is no where near the ...
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1answer
388 views

driving 4 RGB LEDs with PWM using MSP430

I have a project in which I must drive 4 RGB LEDs using PWM directly from the MSP430. They are separated in two groups of 2 LEDs (1 PWM connection controls one color element of two LEDs) which means I ...
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172 views

What is Analog and Digital supply voltage

Currently I have start working on MSP430 Controller and found that there are 4 pins for the supply voltage viz. AVcc, DVcc, AVss, DVss. These are used as analog supply voltage and Digital supply ...
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2answers
113 views

How to make AC signal's level proper for MCU input?

I'm working on a frequency counter coursework, where I use MSP430 MCU. I have to measure signals with specifications: frequency from 0.1 Hz to 1 MHz and signal's amplitude from 0.1V to 10V. The ...
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1answer
572 views

How to make a digital clock using MSP430G2553?

I want to make a digital wall-clock as a small electronics project. Since I am very new to this stuff I want to just try to imitate some already completed projects so that I can learn from them. I ...
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127 views

Connections on RN42 v2

So a few months back, I asked about how to connect a RN42. I finally built the circuit, which is basically a copy of the schematics on the right side of this pdf: ...
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338 views

SD card access slows down with many files

I'm working on a data logger application using a MSP430F5529 running at 2 MHz and a SD card using FatFs. The SPI interface is already running at maximum frequency. However I am seeing very erratic ...
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Can I program a MSP430553 IC using the TIVA C development board?

I have a few MSP430G2553 ICs. Can TIVA C board (EK-TM4C123GXL) used to program the ICs as I need to buy it for a online class I am about to take ???? If yes, please specify the method to be followed.
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Interfacing two devices using transistors

I have a microcontroller and a small video/still "spy" camera (like these) that came in a case disguising it as a car remote. The microcontroller is a TI MSP430 value line model, though I could use an ...