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

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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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47 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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38 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
57 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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7answers
952 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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37 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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1answer
31 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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2answers
130 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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300 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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2answers
48 views

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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136 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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1answer
123 views

MSP430 printf function executes too slow

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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219 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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2answers
275 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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2answers
66 views

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
710 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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1answer
136 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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1answer
675 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
222 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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3answers
250 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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1answer
84 views

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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2answers
119 views

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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110 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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3answers
154 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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175 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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223 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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164 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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121 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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1answer
201 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
306 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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1answer
154 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
103 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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536 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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96 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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1answer
293 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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193 views

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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124 views

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 ...
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1answer
109 views

Implementing Multichannel ADC conversion and transfer data to PC [closed]

I have developed a system using the TI MSP430 G2553 that accomplishes analog to digital conversion of multiple sensors simultaneously. So here is the question: Can someone suggest me how to ...
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1answer
133 views

Changing voltage levels from 5V to 3.3 V [duplicate]

I am asking some basic questions here. I have a sensor whose voltage specs are 0-5V and I have to interface this with my TI MSP430's ADC, whose voltage Vcc is 3.3V . For this I have to convert the ...
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2answers
378 views

MSP430: how to let the timer ISR interrupt the Serial RX ISR?

I am working on a MSP430 connected to the PC via serial. The MSP430 also communicates with some other boards using a bit-banged serial interface. I'm using the timer peripheral to bit bang the serial, ...
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1answer
110 views

Programming CC430F5137 using another microcontroller

I have a CC430F5137 and the board schematic all ready for my application to that requires capturing data over bluetooth. I wish to program the CC430F5137 using another platform except the conventional ...
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1answer
281 views

Transfering my arduino/TI-MSP430 Launchpad/Energia skills to real world projects and C

I'm learning electronics/microcontroller programming through TI-MSP430 Launchpad(Energia) and Arduino. Both are based on wiring framework, and very good place to start for a beginner like me. Now as ...
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1answer
256 views

MPS430 Launchpad Keypad

I tried to use my MSP430G2553 launchpad with a keypad using http://www.pjrc.com/teensy/td_libs_Keypad.html http://bildr.org/2011/05/arduino-keypad/ ...
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205 views

MSP430 launchpad LCD problem

I am trying to interface my MSP430G2553 launchpad with an LCD but my characters look weird. I am using http://www.fibidi.com/arduino-lcd-16x2-characters/ with one potentiometer , with changing ports ...
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2answers
248 views

Launchpad blink with button

I am trying to make LED in MSP430G2 Launchpad keep blinking / off with button like Switch example (http://www.arduino.cc/en/Tutorial/Switch) in Arduino/Energia but I seem to miss something stupid and ...
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145 views

How can see the difference between 8bit and 16 bit controller using a program [closed]

How can see the difference between 8bit and 16 bit controller using a program??say the difference between an atmega8 and msp430..Can i explain this using a program and show this using a program.
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754 views

Is it possible to use msp430 with keyboard + LCD?

I'm trying to do an assignment for my class which requires me to use a keyboard as input through a microcontroller to a LCD screen, nothing fancy , I just need to show that when I press characters on ...
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1answer
171 views

MSP430 Coding, Can I Place an Interrupt Vector Inside a Function?

As the title said, I am trying to see if an Interrupt Vector can be embedded inside a function? I am using IAR, but gcc or ccs would work too. I don't see it done in any code online. Example: ...
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121 views

Connections on RN42

I have been using a SparkFun BlueSMiRF module with a MSP430G2553 chip on a breadboard. I want to create a custom circuit to have everything on one board. Here are a few questions before I go about ...
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1answer
155 views

Parameters to compare microcontrollers for low power consumption?

How do I select a microcontroller with low power consumption? -for MSP430 series we can compare using \$\mu\$A/MHz at active state. Similarly how to compare this with other MCU's like PIC and STM ...