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  1. Hi to all, are you interested in assembler language programming? if so, this could be of interest to you. the basic idea is a 5kB kernel embedded on a MSP430FRxxxx, capable of downloading source files, interpreting and compiling them. Associated with a minimalist IDE: a text editor, a generic preprocessor and a terminal to communicate with the embedded kernel. What is the craziest wish of a microcontroller programmer? In my opinion, it would be that once his source is modified, he clicks on the "build" shortcut of the editor and in a second, the program is compiled on the targ
  2. Has anyone else experienced something like this? I have been using Energia on Windows for years on various LaunchPads, including 430, 432, and Stellaris (now Tiva). The Windows 10 PCs are a Surface Pro 3, a Toshiba Satellite, and an HP Pavilion. Over the last few months, builds and uploads fail in multiple ways unpredictably. The Serial Monitor often doesn't work, even when the TX pin has the correct signal (verified with an oscilloscope decoder). Often the fix is simply to click the Upload button over and over until it works. I've changed to shorter USB cables and switched from USB
  3. Hello, I'm trying to set up the backchannel UART on the MSP430FR2355 launchpad so that it echoes back the characters I send it. I believe I've configured the UART on the msp430 correctly for 4800 baud. Please see the attached main.c.main.c.4800 When I try to send characters after opening a UART connection, I just see question marks. I'm stumped. I'm using mspgcc, mspdebug, and linux for what it's worth.
  4. (Context: I'm an experienced embedded systems engineer, just dipping my toe into MSP430-land. My target system is an MSP-EXP430FR5994 LaunchPad dev board.) General goal: How do I wake the processor N ticks in the future, where one tick is 1/32768 second and N can be as large as 2^15? My first thought was to use the RTC, but that appears to have a resolution of 1 second. My second thought was to use a timer module (e.g. TA1) and use its compare interrupt to wake the processor from LPM4. So my questions: Is there a better / alternative way to wake the processor N ti
  5. I got an MSP-EXP430G2ET yesterday, and after installing drivers and Energia (Debian unstable) I plugged it in and opened up the blink example. Energia spat out some messages about the firmware needing updating, and started the process. I don't have the log (it's fallen off my console's buffer) but it did not appear to complete successfully. Now, when I try to use Energia to flash the blink example, I get this: Sketch uses 386 bytes (2%) of program storage space. Maximum is 16384 bytes. Global variables use 20 bytes (3%) of dynamic memory, leaving 492 bytes for local variables. Maximum is 5
  6. mph

    Multiple timers

    Implementing multiple timers simultaneously can be tricky and I was unable to find any good examples in TI's Resource Explorer. Using the MSP430FR5969 Launchpad, this code generates a sequence of multi-tone square waves to drive an external piezo-buzzer. The audio frequency is set by TA1 and waveform duration controlled by TA0. Written in C to illustrate the bit-wise register operations: https://github.com/microphonon/Piezo_Buzzer
  7. OmegaMan

    Calculator

    Hello, I'm developing an open source calculator. So far it has RPN/algebraic entry, scientific functions, complex numbers and is programmable. The next step is to develop a keypad that plugs into the BoosterPack connectors and a power supply to turn it into a hand held. See the following videos:
  8. Hi, rank TI n00b here: I am a professional developer working a often in the Arduino IDE with Atmel, ESP, ARM, ATtiny and Kendryte processors among others. I am replicating a client design centered around an MSP430G2302 (14 pin TSSOP versus the apparently several different pin counts for this model) and thought the Launchpad MSP430GET would be a good programmer as it claims to support the MSP430G2302... and Energia is very familiar to me as it is essentially the Arduino IDE. I am finding no way to access the MSP430G2302 from Energia, nor any way to specify a 14 pin vs 16 pin package.
  9. So I'm working on a fingerprint scanner project with this repo written for arduino for the scanner I'm using. I am trying to make it work with an MSP430G2553 instead of the Arduino Uno. When I try using this library in Energia, it can't find the scanner despite being wired on the launchpad the same way that it is wired on the Arduino (External 5V source, Arduino pin 2 --> MSP430 pin 1.1, Arduino pin 3 --> MSP430 pin 1.2). The code compiles and the serial monitor outputs the test looking for the scanner, but it has yet to be able to find it. If anyone could give me any help with this, it
  10. Hi all! We are using Tiva C series MCUs (TM4C1294XL and TM4C123GXL) for a project in IICDC 2019 but we are facing problems while implementing Controller Area Network protocol (CAN Protocol) using them. I've attached the basic code for sending messages via CAN protocol form one MCU to other but the problem is, it is not doing so as a message sent from one MCU is received by itself and not by other MCU in the network. We've tried using the filters as well but no progress. Any help would be really appreciated. P.S. - Do we require an extra CAN transceiver boosterpack for these modules
  11. Hello. I have been trying to create a serial link between the Launchpad (based on tm4c123gh6pm) and my cellphone. The code is very simple for testing purpose. Here is it: /* This is a demo code for testing Bluetooth functionality ->The peripheral used here was a smartphone; and to obtain the values of 'i' on the terminal of the device, the "display mode" setting must be changed to ' HEX' ->The code doesn't work properly on when the pin 10 and 11 are used as RX and TX ->It has been successfully tested to sen
  12. Simple demo code that uses FR5969 Launchpad to set an AD5160 10k digital potentiometer in 1k increments. Device communication via SPI and control with a serial terminal program. Implemented with registers and interrupts. Link to github repo: https://github.com/microphonon/AD5160
  13. The Bosch BME280 pressure-temperature-humidity sensor is very popular for projects because there are breakout boards available from Adafruit and Sparkfun as well as a large library of code to interface it to Arduino MCUs. Not so much for the MSP430, especially transparent code to understand what is happening at the register level. I have written and tested some demo C-code that hopefully fills that gap. It sacrifices generality and efficiency for compactness and transparency. I use the F5529 Launchpad and communication with the sensor is via SPI using the UCB0 module. I2C is also availab
  14. I am preparing to purchase equipment for a student lab and am heading towards the SimpleLink MSP432 Launchpad (to have wiFi integrated and avoid a wifi boosterpack). To make the lab interesting the EDU Booster pack looks good (switches, joystick, light/temperature, LCD, servo motor controller) but this course traditionally also makes use of stepper motors and keypad, so that leads me to to think that I want to buy the Launchpad plus 3 boosterpacks: EDU + stepper + keypad. Can I use 3 boosterpacks on a single launchpad (all at one time)? Thanks.
  15. Some topics come aver and over again. Here are the most frequent questions. Wouldn't be nice to have all of them in one single place? Listed questions: Netiquette for Newbies What Information to Provide When Asking for Help I²C Check-List Porting an Arduino library to Energia Use Pins Number instead of Pins Names with Energia Add a New Board to Energia LaunchPad and BoosterPack Pins Maps Boards Supporting the Galaxia Library Netiquette for Newbies What Information to Provide When Asking for Help
  16. Hi All, I am trying to create a transmitting and receiving node. My setup is as follows My transmitting node #1 is mbed-K64F with cc1101.(working fine sending data) My transmitting node #2 is msp430g2553 with cc1101.(giving me challenges) My receiving node is mbed-lpc1768 with cc1101 (working fine and received data from node #1) my connection for msp430 are as follows: csn is at pin 8 sck is at pin 7 mosi is at pin14 miso is at pin 15 I just declare csn as output, the rest of the pins i assume gets configured when we call spi.begin()?
  17. Hi All, I am new to msp430 world, so far i have done many projects with mbed (LPC1768,KL25Z and K64F). I liked mbed as it is so easy to use, however to make cost efficent and low power products i am now trying to learn msp430. I want to interface msp430g2553 with cc1101 transceivers. I have done the basic communication using mbed(like sending and receiving data). However I need some help with msp430. I want to use msp430 as transmitter first and receive data on mbed-lpc1768. I have converted the mbed library to msp430(changed syntax where required) and managed to compile it wit
  18. Check the usual suspects: Is the I²C bus initialised? Wire.begin(); Does the I²C device run at 3.3V? Otherwise, use a logic-level converter. Are pull-ups installed? Try 10, 4.7 or 2.2 kΩ for the SDA and SCL lines. In case the LaunchPad provides multiple I²C ports, is the correct port selected? Try Wire.setModule(0); // or other port number Wire.begin(); Still nothing? Use a logic analyser to trace the signals on the I²C port. (To be continued...)
  19. Hi guys, The new Launchpad MSP-EXP432P111 was released some days ago. I bought one and it arrived today . The board use the XMS432P1111 (pre-production version of MSP432) microcontroller, a Cortex M4 with 48MHz, 2MB of flash, 256KB of SRAM (very impressive), 14bit ADC and many other peripherals, like the LCD driver. Apparently, the LCD is the same of other launchpads (eg.: EXP430FR6989), very interesting to understand how to use the LCD driver and develop some projects. The Out-of-Box demo has two modes: - Blink LED, where you can controll the frequency of bli
  20. hi, I am new here, I purchased launchpad tm4c123gxl for learning purpose,can anyone help me from where i can start? I have good internet access and laptop. Thanks for help
  21. Hi , I am using MSP430FR4133LP , in energia the GPIO pins are predefined in the pins_energia.h for MSP430FR4133 LP based on the silkscreen on the board. I using this MSP430FR4133 chip for another project and in that i am not using a LCD so i thought that i can also use LCD pins as GPIO. For this purpose i need to add the pins in the pins_energia.h but i am not able to crack it. Can anyone help me with this ....? if i try to use any other pins other than the defined ones (say P2_2) ... it throws an error as " P2_2 not defined in the scope" // Pin names based on the silkscreen
  22. Hi, I am trying to implement Modbus RTU slave over TCP/IP using TIVA Tm4c1294 connected launchpad. The code has been successfully tested using Arduino. However, when I use the same code in energia, the launchpad gets pinged, but Modbus RTU does not work . Is there any library, hardware configuration which I need to change while migrating fro Arduino to TIVA? MgsModbus_test_Slave.rar
  23. Hi, I am trying to connect my MSP430FR2433 Launchpad to Energia. I do not see how to select this board in the "Tools -> Board" setting, and I do not see how to download the drivers for it in the board manager. Yet on the homepage of energia.nu, it states that support for this board is available. Does anyone have any suggestions on how to get this board to work in Energia? Thank you. -Grant
  24. hi, I am using a MSP430FR4133 launchpad, i am trying to get a float value and send it via sim800. for that i hve to convert the float value to char* or char array. I have tried many conversions but i am not able to get the conversion properly. Even if i get it properly while printing it on the serial. The data is not transmitted in the right format through sim800. for example if i use dtostrf( buff , "%f" , flaotVal); function in serial monitor only "%f" is getting printed. and if i try other type of convertions , while transmitting through sim800 the right side part of the floa
  25. Hi guys, To train the use of some macros I decided to update/improve a 16x2 lcd library (HD44780) that I adapt many years ago. Possible there are other libraries shared here, but I liked how I managed the configuration of ports and pins using some macros. The use of macros made the library more versatile and easy to adap to new projets without the need to change tons of code lines. The same simples example of use is runnig on MSP430G2553 (old value line launchpad) and MSP430FR2433 (the new value line launchpad). I hope it's useful. https://github.com/agaelema/LCD16x2_M
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