Jump to content


  • Content Count

  • Joined

  • Last visited

  1. Yup, I specifically checked out 14. Keeping up to date was the first check As far as libusb is concerned: jackal:tcl pkiela$ brew info libusb libusb: stable 1.0.9, HEAD http://www.libusb.org/ /usr/local/Cellar/libusb/1.0.9 (11 files, 416K) * https://github.com/mxcl/homebrew/commits/master/Library/Formula/libusb.rb ==> Options --universal Build a universal binary This isn't a huge problem since running it twice in a row literally seems to work every time, I just didn't know if this was a known issue or not. I can certainly report it as a bug if that would be preferable.
  2. Hi guys, I just compiled OpenOCD on my Mac (10.7 using Homebrew libs because I compiled in support for ft2232 devices as well). Whenever I launch openocd it seems to die the first time around, however if I launch it immediately following it seems to kick in. I ran a --debug 3 on it and here is what it reports when it dies: http://pastebin.com/ahr208hm The funny thing is that this appears to be repeatable. If I kill openocd I can then launch it again and it will fail, at which point I can launch it AGAIN and it will kick in. Board is just the standard Stellaris launchpad.
  3. Too true. Here I was badmouthing TI and I just got the shipping notification at 12:35am on 12/18. Well, better a day late than never Looking forward to tooling around on the Launchpad with you guys!
  4. Welp, Dec 17 come, Dec 17 go, still no ship notification. Unless they're planning on shipping it out literally at COB on the west coast. This is getting just a little ridiculous.
  5. Very nice. Something I'm going to have to try. What's the USB board you have made up?
  6. Haha, well I could have used a Stellaris M3 class chip which are in good availability, but to be 100% honest the lack of a Stellaris prototype board (still on order, exp. ship December) led me to pick up the NXP chips since I could buy an LPCXpresso 1768 board which will be delivered on Monday. As much as I crow about vendor independence, while I'm starting out I'd prefer to keep both my prototype board AND my project board on the same chip. So in this case, yeah I think TI sort of lost my "business" by delaying the Stellaris LP so long. But it's not a big deal. I'll go back to investigating Stellaris chips once I have a prototype board in my hands.
  7. Decided to go with an NXP 1768 chip, simply due to availability. I'll post updates in the NXP section once I have some, though I think it'll be pretty much applicable to any Cortex processor.
  8. Just ordered an LPCXpresso 1768 and two bare 1768 chips from Newark. Should be here on Tuesday. Excited about getting them up and running! NXP provides a lot of great examples with the LPCXpresso IDE (or maybe downloadable separately, I'm not sure). I2C, UART, etc. are all covered.
  9. This would be awesome to pick up, but the only place I can find it wants $20 to ship to Canada. No way am I paying $20 for a $2 chip
  10. Great point. I'm perfectly okay going with an M3 however, so I'll probably go down that route
  11. Hi everyone! I'm waiting for my Stellaris boards to ship, and they won't be here until December at the earliest, so I thought maybe while I'm reading about ARM development I'd also try my hand at something a little more low level. I'm fairly comfortable with AVR development and one of the things I love about it is that you can pop a chip on a bare breadboard, add a power brick, voltage regulator, a few caps, and you've got a running "board" that you put together with your bare hands. Not that there's anything wrong with prefabbed boards like the Ardiuno or Stellaris, but there's a certain satisfaction that you get putting bits and pieces together. So I'm starting to think of possibly putting together an ARM breadboard solution. Stellaris M4 chips seem to be hard to come by so I'm probably going to either use a Stellaris M3 or one of the NXP M3 chips. One of the things the NXP has is a USB bootloader so (it looks like) I can just wire up a USB port and drop my firmware onto the chip right from my desktop with a minimum of work. I'm not sure if the Stellaris family offers something like this, I haven't dug through the datasheets extensively just yet but that's on my list of to-do's. So my question: Has anyone here tried this bare-bones approach before? I know getting a LQFP chip on a breadboard isn't going to be easy, but there are several prototyping options which would let me keep the chip itself off the breadboard and wire up everything I need with cables. I'm still going through datasheets trying to figure out exactly what other components the chip will depend on being present, but it seems to have internal oscillators and such, so I'm thinking this won't be a royal pain to put together. Anyway, apologies in advance if this doesn't belong in the Stellaris section. I'm not 100% sold on using the Stellaris chip yet, but it's in the running. This is really more of a "generic ARM" project since it's more about the hardware than the specific vendor implementation. Cheers!
  12. The problem with ARM development is that if you're looking for a huge support community similar to that of the Arduino, for example, then you'll be hardpressed to find it. It's nowhere near as prevalent in the hobby community as AVR/Arduino or PIC programming, but I'm happy to see that's slowly changing I don't have a good example of servo control, but Texas Instruments has a very good library of tutorials and labs that you can access here: http://processors.wiki.ti.com/index.php/Getting_Started_with_the_Stellaris_EK-LM4F120XL_LaunchPad_Workshop?DCMP=Stellaris&HQS=StellarisLaunchPadWorkshop Best of luck!
  13. Since I'm relatively new at ARM development I'm trying to be as hardware agnostic as possible to give myself plenty of options without locking myself into a specific vendor just yet. I really love StellarisWare, but at the same time I'm starting to think that I might head down the CMSIS direction myself. Heck, my TI isn't stated to arrive until late December and I can start to learn on my STM32F3 board right now. It's a shame because, again, StellarisWare is brilliant for a beginner, but I'm a little worried about my options.
  14. Yeah, for pete's sake, Newark just updated expecting further delivery on TI LP boards Dec 17. I wish I hadn't missed out on the first wave of orders because now I'll be waiting another month to get my units.
  15. I don't have my Stellaris in hand yet, but I've got high hopes for the instructions listed here for a nice Toolchain-IDE-OpenOCD combo: http://www.stf12.org/developers/ODeV.html I'm going to be trying to get this running with my stm32 board so it'll be ready when my TI gets here
  • Create New...