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abecedarian

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  1. Like
    abecedarian reacted to spirilis in Need help with MSP430 Project...   
    Considering you're talking about logging data to onboard memory, and are dedicating a serial port for the data retrieval, I think the MSP430FR5969 or other MSP430FR[56]xx9 series chips would serve you well without any further details on how much data you intend to log (before dumping old data), etc.
     
    MSP430FR5969 has two USCI_A ports and one USCI_B, and USCI_A is where serial ports are implemented so that gives you flexibility.  It uses FRAM, which allows seamless writing "to flash" (FRAM, really) that will survive a power-cycle of the chip and doesn't require weird page-erase operations and the complexity they would introduce to your data collection.
     
    Now another question is what are you using for the MSP430->MySQL Server link... with its USCI_B port there are plenty of options, except the MSP430G2553 does not allow much room for the codebase to perform communication with e.g. a TI CC3100 WiFi boosterpack, whereas the FRAM series chips (FR5xxx/6xxx series with a '9' at the end preferably) tend to have a lot more space for that.  The communication driver codebase, in other words, takes up a respectable amount of Flash or FRAM too.
  2. Like
    abecedarian reacted to bluehash in New Energia release 0101E0016 - 07/08/2015   
    A new version of Energia is now available for download. The new version includes bug fixes as well as new RTOS libraries.
    Support for MSP430 FR4133 and FR6989 based FRAM Launchpads. Energia MT for CC3200 LaunchPad, including RedBearLab CC3200 based boards. RTOS-based libraries for clock, timer, event, SWI, task, semaphore, mailbox.  
    Downloads
    Mac OS X: energia-0101E0016-macosx.dmg Windows: energia-0101E0016-windows.zip Linux 32-bit: energia-0101E0016-linux.tgz Linux 64-bit: energia-0101E0016-linux64.tgz Previous Energia Releases.
  3. Like
    abecedarian got a reaction from spirilis in Need help with MSP430 Project...   
    Another thought is you might consider a FRAM based MSP430 so you're not wearing out FLASH.
  4. Like
    abecedarian reacted to Rei Vilo in [Energia Library] RTOS Libraries for MSP432 on Energia MT   
    The just released Energia 16 comes with the libraries I've developed for RTOS:
    ClockLibrary and example multiBlink_with_Clock EventLibrary and example MultiEvents MailboxLibrary SemaphoreLibrary SWILibrary SWItriggerLibrary TaskLibrary TimerLibrary All the libraries are available under the menu Files > Example > 10.Multitasking and come with examples.
     
    Enjoy!
  5. Like
    abecedarian reacted to bluehash in Now that forums have merged....   
    Energia has its own area now.
    I left the main Energia subforum link under MSP Technical forums as a redirect as it will break alot of incoming links.
    Any recommendations or suggestions, please let me know.
    Thanks!
  6. Like
    abecedarian reacted to oPossum in MSP432 and high speed interrupts   
    Yes, only 1 interrupt. The PPS will trigger the interrupt and the timer capture register will hold the *exact* time count when the PPS input changed. Using timer capture eliminates the jitter cause by interrupt latency.
  7. Like
    abecedarian got a reaction from chicken in [MNP] Think of your Neighbors   
    Interesting project. You might consider looking around at various sound pressure level schematics.
    Here's one on Instructables- http://www.instructables.com/id/Sound-Pressure-sensor-and-Mike-pre-amp-for-Arduino/
     
    Other uses could be as or coupled with a baby monitor, as an alarm that signals when the noise in the baby's room goes above some decibel level, or even as a safety device to signal to people entering an area that hearing protection should be used.
  8. Like
    abecedarian reacted to bluehash in New Delfino F28377S Launchpad - $29.99   
    43oh Blog Announcement.
    F28377S Launchpad.
    F28377S Launchpad Userguide.
    TMS320f28377S Tool Page.
    Buy the Launchpad from the TI EStore.
    TI C2000 Launchpad Landing Page.
  9. Like
    abecedarian got a reaction from Fmilburn in Energia with TM4C123 battery monitoring ADC problem   
    @@Fmilburn
    If you limit the current the ADC can draw from, or don't give the ADC enough time to fully charge up, that can affect your readings.
  10. Like
    abecedarian reacted to Rei Vilo in [Energia Library] RTOS Libraries for MSP432 on Energia MT   
    Second instalment: Semaphore or how to manage and share a single resource with multiple clients.
  11. Like
    abecedarian reacted to bluehash in Stellarisiti had its own user blogs   
    IpBoard released 4.0 recently. We are currently on IPB3. I'm waiting for it to get stable. Also need Tapatalk to update to 4.0. Once that's done, I'll have blogs enabled. If I enable it now, things might break during the upgrade.
  12. Like
    abecedarian reacted to Rei Vilo in [Energia Library] RTOS Libraries for MSP432 on Energia MT   
    I've created a new section on my website called Exploring RTOS.
     
    And the first instalment is ready: Clock Library.
  13. Like
    abecedarian got a reaction from bluehash in Energia not starting on Windows 8.1?   
    I haven't seen this problem occur myself, but you might try using the compatibility wizard and try running the executable in Win7, Vista or XP mode.
     
    The latest Energia is running fine here, on Win10 build 10130, by the way.

  14. Like
    abecedarian reacted to zeke in How to solder HTSSOP heatsink without reflowing the board?   
    I have resurrected over 75 boards at work by carefully using a 1200 Watt hot air paint stripper to remove and re-install 288 ball BGA packages. 
     
    The key is to heat and cool the board evenly over a controlled amount of time.
     
    Burnt FR4 is a nasty smell.
  15. Like
    abecedarian got a reaction from bluehash in New Hercules LP's in bound   
    Take your pick for $29.99 USD + shipping / handling: TMS570LC4357: http://www.ti.com/ww/en/launchpad/launchpads-hercules-launchxl2-570LC43.html<- automotive certified
    RM57L843: http://www.ti.com/ww/en/launchpad/launchpads-hercules-launchxl2-570LC43.html<- medical / industrial certified
    * "certified" relates to the processor itself and your programming standards and practices and not the board so do your due diligence.
  16. Like
    abecedarian reacted to spirilis in New MSP-EXP430FR6989 128KB FRAM Launchpad Discounted to $13.99   
    Didn't notice until now the "E S I Scan Interface" logo and the special header for the ESI pins down at the bottom!
     
    Also looks like I need to find my muse again and keep cracking on my new msp430 arduino core which supports this chip...
     
    Sent from my Galaxy Note II using Tapatalk
  17. Like
    abecedarian reacted to spirilis in New MSP-EXP430FR6989 128KB FRAM Launchpad Discounted to $13.99   
    I'll admit, sometimes I buy these 'cause they're shiny... hehe

     
    Sent from my Galaxy Note II using Tapatalk
  18. Like
    abecedarian reacted to Namyts in Getting Energia to run another program with command line   
    Hi abecegarian, thanks for the idea, but I've decided to go with using energia to tell the chip to output to the serial and then writing another program in processing to read that serial. Not being that experienced means that this is probably the best option for me. Thanks for taking the time to reply.
  19. Like
    abecedarian reacted to spirilis in TI Hercules. Suitable for casual and hobby use?   
    Possibly. Power consumption would be my first concern though. The ECC feature must be used in flash.
     
    TI's FRAM MSP430's supposedly have an innate radiation immunity (well, the PZT storage medium itself, all transistors are still susceptible) which has been recognized and studied for space applications.
     
    Sent from my Galaxy Note II using Tapatalk
  20. Like
    abecedarian reacted to rockets4kids in TI Hercules. Suitable for casual and hobby use?   
    Perhaps a better way to discuss this would be, "For what hobbyist applications would the Hercules part be well suited?"
     
    The first thing that comes to my mind would be high-altitude balloon projects or cubesats that would be subject to cosmic rays.
     
    Does anyone know if the Hercules architecture will really provide a benefit here?
  21. Like
    abecedarian got a reaction from RROMANO001 in New toys on June 10th!   
    @@RROMANO001
    Go to the page for the processor itself then click on the SAMPLE / BUY tab, for example http://www.ti.com/product/TMS570LS1227/samplebuy.
    TMS570LS1227 is about $15-16 USD each in 1000 quantity, depending on package.
     
    TMS570LC4357 is about $39 USD in 1000 quantity. http://www.ti.com/product/TMS570LC4357/samplebuy
  22. Like
    abecedarian got a reaction from simalrow in Why does this code's iF statement not work   
    Since you are testing a variable against being equal to 0 [zero], you could do
     

    if (buttonState)   //check buttonState   {     // do something because buttonState is not 0   }   else {     // do something else because buttonState is 0   }
  23. Like
    abecedarian got a reaction from RROMANO001 in TI Hercules. Suitable for casual and hobby use?   
    I concede that BGA is not "hobby" friendly, but this discussion should be about the LaunchPads themselves, not the chips they contain.
  24. Like
    abecedarian got a reaction from RROMANO001 in TI Hercules. Suitable for casual and hobby use?   
    In another thread, questions were raised about if the Hercules processors were suitable for hobbyist and casual users.
     
    I'd like to discuss this.
     
    The relevant content of the post was presented by @@RROMANO001 and is:

    Before we get too deep, I'll start with "two BP socket not fully wired".
    The BP standard currently shown on TI's Build Your Own BoosterPack site depicts two pins on the headers declared as "reserved", though those were used on previous LPs.

     
     
     
    "High-speed" design is subjective. FWIW, many of the traces on the new LC4537 LP are 0.5 mil... and they 90 degree many of them {gasp}.
     
    I could tell you the most rapid signal I have to deal with on my engine might be 60 tooth wheel for position sensing on a shaft, and at 15000 revolutions per minute, that works out to 250 revolutions per second and further means 15000 signals per second with that 60 tooth wheel, so 15KHz or maybe 30KHz if you want to capture both rising and falling signals, right? Is that high speed? Does I2C/IIC work at 100KHz over 0.1" headers? Do ESC / motor controllers work over 0.1" headers?
     
     
     
    I'll stop here because I want discussion.
  25. Like
    abecedarian got a reaction from RROMANO001 in New toys on June 10th!   
    New LP next to previous LP:

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