• Announcements

    • bluehash

      Forum Upgrade   03/11/2017

      Hello Everyone, Thanks for being patient while the forums were being fixed and upgraded. Please see details and report issues in this thread. Thanks!

spirilis

Members
  • Content count

    3,374
  • Joined

  • Last visited

  • Days Won

    144

spirilis last won the day on January 22

spirilis had the most liked content!

About spirilis

  • Rank
    Level 5
  • Birthday December 8

Profile Information

  • Gender
    Male
  • Location
    New Market, MD
  • Github
    https://github.com/spirilis/
  1. Aand. .. Arrow's still doing free shipping, no code needed. $50 minimum for international orders. I'm guessing they're pushing hard to gain a presence in the small-order online commerce arena, but that's good for us! (for now, while shipping is free ) For the most part their online ordering process has improved since last August when I found much to gripe about, and they gave me a contact who manages the web development and I've written him once or twice to report issues I've seen.
  2. Not sure what the JTAG tools run for those, although I think they have a serial bootloader of sorts (the big brother RX series do anyway), and the arch is a modern evolution of the Z80 (taken from NEC when NEC sold their semiconductor division to Renesas) from what I gather. Not important for a smaller chip but, for larger RL78/G14's and such with >64KB flash and/or SRAM, the architecture still uses a 16-bit address bus but with special paging that requires the compiler use "trampoline" code to switch pages as needed (should be transparent to the developer though but adds latency to function calls)..... but, for a super simple program on a small chip, you'll never encounter this. edit: For JTAG, the Renesas E1/E20/etc series of emulators are specified, the cheapest variety is the E2 emulator Lite which is ~$65ish.
  3. Well, I am not sure about the interrupt latency (not that familiar with the arch), and the price is more like $1.50ish... but Renesas RL78/G13 is close: https://www.renesas.com/en-us/products/microcontrollers-microprocessors/rl78/rl78g1x/rl78g13.html https://products.avnet.com/shop/en/ProductDisplay?storeId=715839035&catalogId=10001&langId=-1&productId=3074457345625366633 OK, going down a bit, RL78/G12 has a 24MHz part that's <$1: https://www.renesas.com/en-us/products/microcontrollers-microprocessors/rl78/rl78g1x/rl78g12.html?status=No%3B&pin_count=20%3A20%3B# https://products.avnet.com/shop/ProductDisplay?catalogId=10001&langId=-1&storeId=715839035&productId=3074457345625120989&categoryId=&fromPage=autoSuggest IIRC the compiler is free, or at least there is a GCC port, and Renesas e2studio is a free Eclipse-based IDE.
  4. Happy new year!
  5. Hasn't been tested to rigorous standards demanded by production use cases. Plus TI has to state that to avoid being sued if bad things happened that could be traced back to bugs in Energia. (Not an official explanation)
  6. I thought Energia MT implicitly supported creating multiple tasks by having additional source files with different variations of the setup() and loop() functions e.g. setupRadio() and loopRadio() or similar?
  7. I'm a little embarrassed to admit, but, I had no idea the Linux 'sleep' command could take a decimal point..... always thought it had to use integers. Turns out it takes suffixes for 's' (seconds, the default), 'm' (minutes), 'h' for hours and 'd' for days too! DESCRIPTION Pause for NUMBER seconds. SUFFIX may be 's' for seconds (the default), 'm' for minutes, 'h' for hours or 'd' for days. Unlike most implementa? tions that require NUMBER be an integer, here NUMBER may be an arbitrary floating point number. Given two or more arguments, pause for the amount of time specified by the sum of their values.
  8. Nope magnification visor w/ extra loupe I can swing down. I think viewing in stereo helps.
  9. Regarding making your own PCB with RF, one nice thing about the TI parts is the TI reference designs, I've used their 2-layer (0.8mm thick) ref design to build a few CC1310 boards of my own, and they work great but the RF passives are all 0402 and require a stencil for solder (OSHStencils stainless works great for this). 0402 is a bear and the absolute lower limit I will go. That said, one of TI's partners made a module for the CC2650 with LGA pads underneath IIRC. That makes the chip far more accessible. Trey German formerly from TI started a small company (Polymorphic Labs) building tiny gadgets based on that module. The CC2650 "BoosterPack" package includes a sample or 2 of that module. But of course all of that is probably over your budget
  10. Well whatever you use, 2.4GHz is best due to PCB antenna size. It is a shame the CC26xx series is too expensive since its high sensitivity would help make the distance even with sketchy small PCB antennas. Also for nRF stuff, I wouldn't bet on those actually making 10m at 2Mbps, but it should at 250Kbps. The issue is the human body and how it may reflect/refract RF as the wearer moves around.
  11. Arrow's still doing free shipping now, all orders USA and $50+ International. Bought a few more components (10x HDC1080, 10x TPS61221 for some CC1310 sensor nodes) to stock the bins.
  12. Without having any way of seeing your breadboard adapter socket soldering job and where the passives are, my first assumption is you probably did something wrong with the chip's layout; FYI this isn't a chip you can casually "solder to an adapter" and expect it to work. It has several passives including an inductor, multiple values of decoupling capacitors, a 24MHz XTAL without load caps (load caps are internal) along with a 32.768KHz XTAL with load caps that are expected (earlier revisions of the CC1310 chip couldn't run without the 32.768KHz XTAL). I've been successful in rolling my own boards by designing them from scratch but closely following the layout decisions demonstrated by TI's own reference designs.
  13. I personally won't touch anything other than the F128 model. I think it was a mistake for TI to produce them (especially the CC1310F32, like, wtf?)... with the RTOS being an integral part of the solution.
  14. That confirms some suspicions many have had... the CCS license bundling w/ launchpads was a clever way to sell some hardware. Why would the TI ARM compiler go away? I haven't done an exhaustive analysis on it but I have to imagine TI built it for a reason. The real news here is the MSP430 optimizing compiler having no code limit (I assume...) Of course maybe a bit too late now that msp430-elf-gcc has been around a while.
  15. That's awesome, I didn't know about that.