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Found 20 results

  1. Kicking off my MSP430FR2433 hobby effort I looked into the RTC peripheral, which amounts to a really simple stupid counter, the likes of which I often used WDT for back in the day. It just counts up to RTCMOD and then fires the ISR. So without the fancy date tracking that RTC_B did on the Wolverine chips, I had to up the ante a bit and write myself a library to convert "epoch" seconds format (# of seconds since Jan 1 1970 midnight UTC) into a "struct tm" year/month/day/hour/minute/second/etc. structure and vice versa. I looked around for other implementations and found some inspirat
  2. Hello, I'm writting this topic because I want some help in using the RTC of the MSP430FR4133. I'm working on a project and I need to create alarm related to the time. Firstly i want to print the hour on my LCD it'll be a good begin. Sincerely.
  3. How to program rtc tm4c123gxl in energia? Please provide energia code for rtc in tm4c123. As i am using energia compiler for my project i want some help to program rtc with controller
  4. can anyone some help me? I have some problems with user rtc configuration in msp432 I made a firmware where the user choose by hardware configuration adjust date and time (alarm clock). The problem is ... after the user adjust date and time I would like use the rtc to control the watch and show the current date and time in a lcd. The problem is ... after the user adjust date and time I would like use the rtc to control the watch and show the current date and time in a lcd. Soo i need some help in two things pass the user value (decimal) to hexadecimal or BCD and the inverse get the hexadec
  5. can anyone some help me? I have some problems with user rtc configuration in msp432 I made a firmware where the user choose by hardware configuration adjust date and time (alarm clock). The problem is ... after the user adjust date and time I would like use the rtc to control the watch and show the current date and time in a lcd. The problem is ... after the user adjust date and time I would like use the rtc to control the watch and show the current date and time in a lcd. Soo i need some help in two things pass the user value (decimal) to hexadecimal or BCD and the inverse get the hexadec
  6. Hi, I'm trying to make a clock with a Tiny RTC module and a iTead 5110 Nokia LCD. I'm using Adafruit RTClib and the energia LCD_5110_SPI. Each library an device are working fine separately but when put together it stops working, is it possible to have SPI and I2C device working simultaneously? Thanks.
  7. Windows 7 / Code Composer Studio 7 / Energia 18 / MSP 432 LaunchPad + CC3100 WifI I'd like to use a RTC_C calendar alarm to turn on/off my some streaming data collection, however, it doesn't seem to work. That is, once I register the RTC_C interrupt via RTC_C_registerInterrupt, I'm unable to init the WifI. Specifically it hangs here in WiFi.cpp: int iRet = sl_Start(NULL, NULL, NULL); I've whittled my code down to what appears below. Does anyone have any ideas? jrd ----- // Header files #include <WiFi.h>
  8. I've recently started using the real time clock on the TM4C1294. I have the clock working, keeping time, and set with NTP. I want to try and make it a battery backed RTC though. I'm currently wasting time in an airport, so I can't test. From the schematic, it looks like if I remove R39, and connect a battery to TP11 and gnd - I should be able to keep the clock going while the board is powered down. Has anyone tried this, or done it with a custom board? Edit - Oct 10th. Finally got a chance to try it, and it does work! I put 3.3v from the bench power supply on TP11, with
  9. I posted a blog entry about how I used the STM32L1 RTC (a few years ago) as a tickless, ultra-low-power timer for my RTOS. http://www.indigresso.com/_blog/?p=181 The MSP432 has a similar problem. Only the RTC and Watchdogs run in LPM3 and 3.5, no other timers do, but you want to use those LPMs for timed sleep! There is a workaround, and it is actually very fast thanks to the really great ALU in the CM3 and CM4 devices. My code is also implemented in bulletproof production firmware that I've shipped to various industries . Yes, the code is for STM32L1, but I think you should be able
  10. Hi, Can someone help me to implement an internal RTC module code in TIVA TM4C1294NCPDT using Energia? Thanks.
  11. Hi fellow developers! I need some help!! (of course or I wouldnt be here...) I'm testing my MSP430FR4133 launchpad... And I need a RealTime Clock interruption of a second, exactly. I tried to use OneMsTaskTimer, which works, but after 32min it gets a delay of 3.5sec. So I concluded that it does not use RTC. I could not find a library that would work on FR4133. And still didnt workout a way of implementing RTC my self. Have you guys done anything yet? Thanks!! Regards!
  12. Hi, I've made a very simple RTC library using the RTC method in the PRCM library. It is intended for the CC3200 Launchpad and has only been tested on the CC3200 Launchpad so far. Overview: Uses the PRCM library It follows UNIX Time It was made with the "Time" library of the Sparkcore in mind. It has the following methods:ccRTC.zone() ccRTC.now() ccRTC.year() ccRTC.month() ccRTC.day() ccRTC.weekday() ccRTC.hour() ccRTC.minute() ** ccRTC.begin() Limitations: (Unfortunately there are a few actual limitations) It is accurate to only about 4 seconds an hour. (That is pretty bad, but
  13. Another trivial port... this is the RTCLib I've been using for a couple of AVR projects, it runs with really minor modifications (just stripped out PROGMEM related stuff). I've already pulled a request to the main repo (I've been contributing DS1388 to this lib in the past). While the pull gets in, here is the library on my fork: https://github.com/elpaso/rtclib I've tested the library on my LP 1.5 with a DS1388 (3.3V version) and it's working fine. Example #include <Wire.h> #include <RTClib.h> RTC_DS1388 RTC; DateTime now; // Ugly globals... uint8_t timeH; u
  14. Hello! This is my project Real Time Clock. The project used RTC module ds1394, temperature sensor ds18b20 and driver 7-segment display tm1638. msp430g2553 MCU integrates devices with two hardware ports SPI (USART1, USART2). Clock Functions:- Showing the time, date, day of the week; - Set the alarm; - Shows the temperature of the sensor ds18b20; - Control the brightness of the indicator. Video: Russian description Source code Video: My project site Project includes: - DS1394 msp430 launchpad interface - ds18b20 maxim + msp430 launchpad - Library for TM1638 to
  15. Hello, I'm a new member and also a noob user of a Stellaris LM4F120 LaunchPad Evaluation kit... =) I'm watching the workshop videos available here, and trying to develop a little project of my own, an automatic fish feeder. Just to see if I can... The idea is based on this other project i've found here, but I want to do the timer on the MCU, and use its iterrupt to activate the motor. So I'm kind lost on how to start the whole thing... But what I'll certainly need its to configure correctly a RTC... To proper set when the feeds will happen. How do i configure the SysCtlClockSet? And how ca
  16. Hi All, I am very new to MSP430G2231,Can you please guide me how to manually connect the ds1307 to launchpad as i have nly 14 pins. And how i can generate a interrupt at 10'O clock and 2'O clock everyday reading a time from real time clock through code(embedded C). In between what all i should take in my coding part. Hoping to get guidance Thanks in anticipation Nikita.
  17. Hi folks. I'm fairly new to MSP430 development, though I've tinkered with AVRs for many years previously. Currently I'm working on a board that needs to use the onboard RTC_C module on the MSP430F6726 (using the Rowley CrossWorks/CrossStudio IDE). I've read through the user guide's RTC_C section thoroughly and written many variations of the setup code, including copying and pasting the official example (MSP430F673X_RTC_01.c)... I can't get it to count or fire RTCRDY interrupts no matter what I do. Below is my simple test code, which should toggle an LED on P5.2 every second (but doesn't wo
  18. Hi guys Here I am again to ask for help :oops: So the deal is this: I'm waiting for a nokia 5110 LCD screen to arrive and I'm thinking on what I can do with it. My idea was to make something like a clock with a thermometer and, with an accelerometer, when I bounce it it works like a magic 8 ball (I think about a decision I have to make and it "helps" me with a "Yes" "No" and "Maybe" answer). The maginc 8 ball isn't a real issue. I gess that the code is pretty simple (I can use a sample code from the book "Getting started with the MSP430") and that shouldn't be a problem. My pr
  19. Found this through hackaday. Sunrise Alarm Clock. Uses a G2553 (Programmed via Launchpad) Uses a DFC-77 Atomic Radiowave Time Receiver for, well, atomic time. Standard Character LCD (via a shift register) (and pwmed backlight) Settings through Pushbuttons Simple Alarm via PWM melody. 10mm LEDS to provide Sunlight (These could/should be replaced with high current 1a/3a type leds imho) And battery backup (with backup status recognition on p1.4 interrupt) via three diodes! A full featured project, though it could use better leds, and unless you are in Europe, a different cloc
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