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  1. Hi All, I got fed up with male headers on the LaunchPad, so I made up a small PCB to gender change the LaunchPad. It has the nice side effect that it is easy to switch my LaunchPad among different projects. Check it out https://analog10.com/posts/000_switchpad.html Thanks, Dave
  2. I have the LM4F120 Stellaris Launchpad and was wondering if it was possible to have a single USB connection (either the debug or device port on my launchpad) function simultaneously as a UART serial connect but also connect to my computer as a mass storage device? Is this at all possible? How would I go about it? Maybe I'm going about this wrong but basically what I am wishing to do is to be able to access files on an SD card that is attached to my launchpad on my computer. I simultaneously would like to be able to send messages to/from the board from the computer. Is there a good way of
  3. I have a launchpad V1.4 and V1.5. I am sending serial data from the launchpad at 9600 baud and using a FT232 and Putty to decode the serial data. However, the serial communication does not work at a baud rate of 9600. I have to set the baud rate in Putty to 4800 in order to get it to work. Somehow the launchpad reverts the baud rate back to 4800. If I set the bad rate on the Launchpad and Putty to 2400 or 4800, all works fine. Only 9600 and higher that does not work. Having the same problem when using TimerSerial.h. The jumper settings on both Launchpads are correct. Being fairly new
  4. I am trying to detect the width of a pulse signal (that should be anywhere from 1ms to 20ms wide) using two ISRs on the MSP430G2553. One ISR is triggered by the rising edge, and the other by the falling edge. The first ISR reads micros() and stores the value in a variable called Time1. The second ISR reads micros() and stores the value in a variable called Time2. The pulse width of the signal is equal to Time2-Time1. The problem is, Time1 and Time2 always end up being equal, even though they are read in two different ISRs on two separate signal edges-- this should be impossible. Any
  5. Hi everybody, im new at this forum ant i love energia, a simple and fast ide for develope with the msp430 lauchpad. i have a question, its possible to make a bidirectional communication from lauchpad to pc using energia and matlab? anybody can explain to me how ca i do this?? thanks =)
  6. I have been studying the schematics for the Stellaris Launchpad. Having troubles tracking down a few of the headers. There are a number of header pins listed by number on the schematic (e.g. H14, H15) with no corresponding label on the board. Most of the pins I have figured out where the header is by what signal it carries, but header H15 is illusive. Schematic shows that it is connected to pin PD3 on the ICDI controller (U2A - the other LM4F120). No indication given in the schematic what function it has. Have not found it labeled on the board. May have to do process of e
  7. LM Flash Programmer from TI started giving me error messages says ** ERROR **: unable to connect to target Target is Stellaris Launchpad I had used the program successfully some time ago. Code Composer Studio version 5 can reprogram the launchpad. Thought I remembered seeing something about this problem, but can't seem to find it now. Any suggestions? Build 923 of LM Flash Config is Stellaris Development Board (also tried a few others). OS is Win XP Has drivers for the board Board shows up in devices (ICDI JTAG, DFU) Thanks
  8. Hi all! Yesterday I finished with my little project, which was to play ring-tones in rtttl-format (Ring-Tone Text Transfer Language) with MSP430G2231. I thought that some of you might be interested about the project and about the code. Code is "built" from arduino sketch which involves Tone Library and the sketch acts as a interpreter for the rtttl "code", but also the code is partly made of 'msp430 LaunchPad Music' made by Bob Somers. So this is a kind of a ported code. Here's how it works. Main part of the rtttl-player (as the CCS project is named) is the play_rtttl(*song) functi
  9. I was wondering, does anybody know of a good msp430 compiler like IAR for mobile devices? If not, I have some ideas if anybody is up for making one. Physically connecting to the phone is out of the question, so it would have to be bluetooth. An msp (preprogrammed) with a bluetooth transceiver may just be all that's needed to program another msp via spi-bi-wire, and possibly throw in an rx/tx port to transfer data back through the Bluetooth, just like the launchpad does with USB. Just tossing ideas out.
  10. Hello, I guess there is no TI Launchpad component in Fritzing software.. I know that svg file of launchpad has been made. http://www.43oh.com/2011/07/launchpad-svg-for-fritzing/ However does anyone know how to use this svg in Fritzing? Thanks, Sirri edit: No one is using this good free program ?? : /
  11. I'm trying to build a distance sensor using an IR Led, and a TSOP receiver that is run by my stellaris launchpad. However, I am not sure how to produce the 38KHz that is needed to drive the transmitter, and I'm unsure about how to run the transmitter, and read the receiver at the same time. Any help is appreciated!
  12. I bought some addressable RGB Leds from Dealextreme and instead of the expected WS2801 chip, they came with TLS3008 drivers (8bit control for each colour, single wire, different protocol from WS2811 too). It took some time with the osciloscope to get the timing right but this now works perfect. This is in C rahter than assembly but I can get a decent update rate. I do not work with the full 50 Leds as there is not enough RAM in the chip I use (2231) but I tried looping the code to work with the full length, that worked ok except on one set of Leds which was sometimes lagging, I think that thi
  13. The same question is posted on reddit here: http://redd.it/18bkdl We are meeting with our project sponsors tonight and would love to have some kind of answer as to what's going on with our power draw. We are using an MSP430 Launchpad to develop a small project to be powered by a solar cell. Eventually we will have a single hardware interrupt, and a 30 Hz counter interrupt to update an LCD. We have estimated our power budget to be around 20 micro Watts. Oddly, with the software I have written and provided below, we are getting around 30 micro amps at 2.2V when we separate the MSP fro
  14. My name is Ivan and I am a 12 year old kid from Canada. I just ordered a Launchpad and a Terminal booster pack. I downloaded the code and imported it into CCS. When ever I try to debug on the Launchpad, it says "Error Connecting to target". I tried connecting to 2 different computers both running different versions of Windows. Could any one help out please? Thanks, Ivan
  15. Hi, Thanks to the tips on 43oh.com I just managed to use my launchpad to program a 2553 on a breadboard. My code deployed fine and ran without issues, but I noticed something slightly different when I was finished testing. The chip stopped running the code as soon as I terminated the debug session. Normally, when the debugger is connected to a chip on the launchpad's emulation section, terminating just detaches the debugger. Assuming the debugger wasn't paused or on a breakpoint the chip continues to run the code uploaded to it. Could I have done something on my breadboard that
  16. look at the photo. do you think it is launchpad powered? : )
  17. Hello everyone, I am an absolute newbie to programming with the msp430. I am looking through tutorials as to understand more about the launchpad and what it will take to accomplish what I want to do. I have done all of the basic tutorials like "blinking the led" and whatnot. I will run down exactly what is going on. At the moment I have a launchpad(2553) at home with me now and a brand new cc4000-tc6000 gps module kit. Right now, I am trying to get my Launchpad talking with the cc4000 module. I have looked into the user experience code, which is made for the MSP430F5529 Experimenter
  18. I'm new to 43oh, but I've read threads here a number of times and it has been a great reference. I wanted my own application board with a built-in programmer, so I designed the application board, and used the launchpad schematics (v1.4, I believe) as the programmer. I have printed the board and populated it. I've been looking around, and I am not actually sure how to program the firmware onto the board. I know that TI has its "firmware updater," but I think this requires that the board already has firmware loaded onto it. The programming portion of the launchpads have a programmer MSP
  19. Hi everyone, I wanted to connect a MSP430 to an Android device. In fact, my idea was to use the MSP430 launchpad as a low-cost GPIO board for an Android tablet. I did a little research, and first thought on the audio port for the communication ( http://robots-everywhere.com/re_wiki/index.php?title=Serial_on_Android_using_the_audio_port ) but then I remembered that the tablet supported USB OTG. So, I compiled the CDC_ACM module for the (Allwinner A10 based) tablet in order to emulate serial port over USB. Then, in the MSP430 Launchpad side, I needed a lib for using the serial port. I fo
  20. hi, can you give a little example about the usage of shift registers by using energia? if you can check the picture i have upload, i want to enable one pin > and send e 4igits for each clock cycle- specifically thanks, sirri
  21. All, I have designed and am in the process f ordering an adapter card that will let me use my old 3.3v arduino shields with my TI Sellaris LM4F Launchpad. There are no hard connections beween the two sides so you can wire pins as you need. This will enable the user to use multiple shields with the Launchpad event it the shield signals conflict.This is really usefull with the SeeedStudion 2.8" TFT/Touch V 1.0 from Radio Shack which uses all but 4 pins. The shield will be available at: Batch PCB Marketplace: https://www.batchpcb.com/pcbs/102355 from Sparkfun. I have attached a p
  22. Hello, I have few questions about launchpad in general; 1-The internal thermometer is a seperate chip on launchpad or a feature in 2553 chip? 2-Does internal clock works stand alone (apart from launchpad) ? 3-Can we supply msp430xx chip standalone with a 3V battery cell? (I can't find LM1086 3.3V voltage regulator in my city) 4- What is the priority order while coding (energia) among libraries, functions, main code ? Thanks in advance, Sirri
  23. Hello, After some reading from master's tutorials i have made my 4 digit, 7segment Led display, working with MSP430, I have used array definitions for digits and segments. Also i wrapped that within a function so that we can control the number and the digit we want to display. Probably code can be improved a lot, but this is i could do for now. Recommendations are welcomed. And i will be glad if it helps for very beginner Launchpaders )) PS: It is working allll parallel. i have used 7 output pins for segments and 4 output pins for the digits.. int segA = P1_3; int segB = P1_4; int s
  24. Hi everybody, I'm tinkering with my launchpad and was looking at the RTC functionality. As I posted in a different post, I am trying a symbiosis with the Raspberry Pi. It would be great to use the launchpad to switch on the Raspberry Pi and functioning as a very advanced intelligent peripheral. However, the RTC confuses me. I am used to have several registers to store the date, time and alarms. The RTC of the launchpad just seems to be a timer counting seconds, nothing more. Is this correct? So if I want to make an alarm I should calculate the amount of seconds in the timer register?
  25. Hello everyone!! I'm a 21 years old engineer student from Spain, and I need your help, because I'm going to do a really big proyect (for me)! I need to control a microcontroller from my android smartphone. I think that the 430 Launchpad with a wifi module would be adecuate. I worked with a PIC couple years ago, and i don't know a lot about TI microcontrollers, but they are really cheap, and I need a cheapest project. What wifi module would you recomend for me? I'm searching for, but I can't find much. I read on the wiki that CC3000 is a plug-in wifi
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