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RobB

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  1. Just an update on my G2553-only logic analyzer that kicked this thread off: it managed to help me debug my I2C communications problem. I was really in the dark as I had one uC as the master and another uC as the slave and no communication was happening. So without the logic analyzer I didn't know where to start. But with it I could see that the address was successfully being communicated by the master but there was no ACK from the slave. So I focused in on the slave..... ARGH! Forgot to enable interrupts!!! How embarrassing... But the logic analyzer did great! Thanks for all of your
  2. Thanks for all of the very specific suggestions. I guess I'm setting off on the same, sad road of disappointment with cheap alternatives. I'll let you know how my ebay bridge works. Has anyone tried a particular CH340 solution with good or bad results they want to share? I think having these experiences all gathered in one place could be really helpful for those of us who are trying to navigate the options! --Rob
  3. =:-o I guess I can't just chalk that up to you accidentally hitting them with a sledgehammer or something? :-(
  4. Thanks for the suggestion! I was looking at things of this sort and landed on this one: http://www.ebay.com/itm/151369386564 so that I can use my existing USB cables and because it has the FTDI chip (or at least it says it does!). But it's good to know that the CP2102 is a good option, so I'll keep this one in mind if I have any trouble. --Rob
  5. Thanks, oPossum. I did see your very nice design (one of very many of yours!) and would love to do that as the next step. I was just seeing what I could do with no additional parts since I'd have to order the RAM to build yours...my stash is not yet well-stocked! As for the FDTI board, am I missing an important difference between the $15 SparkFun board and the cheap slow-boat-from-China version (http://www.ebay.com/itm/FT232RL-USB-Serial-adapter-module-USB-RS232-Max232-Arduino-download-/310510484589) ? (I'm still trying to fly under the radar of our hobby budget here, so if I'm going to
  6. Hi y'all, (First post newbie alert) I'm loving playing with my Launchpads and am currently working on some robotics projects, including designing an intelligent motor controller that uses I2C interfacing. Well, as these things go, the I2C communications didn't work right off and I was frustrated by my lack of a logic analyzer, so I decided to throw together an MSP430G2553-only logic analyzer capture system that communicates to existing SUMP clients. It works well considering a one-weekend investment of time and I'm learning lots. It can collect 390 samples, with 8 probes, at a ma
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