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veryalive

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Everything posted by veryalive

  1. good to hear from you! i'll be there very soon, alta vi area.
  2. thank you, @@tripwire. I overlooked that the 432 LP xds emulator is for arm devices. 432 LP manual excerpt below. I only spotted the serial debug from the emulator onboard the 432 LP (table 1 in the document mentioned immediately below) and hoped it supported sbw. It appears to be jtag. But, nevertheless, thanks for sparing me an incorrect purchase. cheers ================ excerpt from 432 LP user guide --- SLAU597A
  3. @@chicken @@Fmilburn or anyone familiar with the energytrace hardware on Launchpads ........ Hi, A big 'Thank You' to Fmilburn for your clear and useful tutorial on energytrace with CCS and Energia. I'm very interested in energytrace and want to purchase a Launchpad with that capability. I use CCS mainly, and find energia invaluable for fast prototyping. My chips of choice are 5529 2553 2452 2252 2271. But I want to try the 432 ARM Launchpad, (with its ez-fet and energytrace) instead of buying another xx5xxx type launchpad. So, here's my question:
  4. often, i like a very very simple terminal program just to monitor async streams from multiple projects. and tiny enough so that i can run multiple instances on my desktop / or 2nd monitor extended desktop. here's a couple, both are free: - PComm terminal emulator. moxa (from ethernet / serial bridges). features - auto serial port finding. - nice hex display. - Mosaic Terminal. (from Mosaic Industries, a single-board-computer supplier) features - selectable background colour so it is easy to identify which output I'm receiving. I find th
  5. Ahhhhh OK. thanks. so MT is RTOS, i gather (where MT = multitasking in energia, done with customized TI RTOS I presume) cheers....
  6. BRAVO, FOLKS !! May I ask : Which processors are supported with the RTOS multitasking? Or another way to say it: when are the RTOS libraries invoked / restricted while building a sketch? Many thanks for a great package...
  7. Hi guys. I used Zeke's sw a long time ago, so maybe my recollection is correct / useful: .... Check your bit times with a scope ....? I recall changing baud rate down to 9600 and also got bit errors. The logic analyser showed faster bit times than 104 uSec (9600), it was around 95 or 97 ? When I adjusted dividers in the async uart setup routine, it worked. Maybe this helps? Cheers....
  8. 2553 is great! I often downsize to other favorites for which I have small stock on hand: 2252, 2452.
  9. I still have this problem. Hovering over 'tools', or accessing files such as 'examples', or previous sketches causes a delay before energia reacts. It is disturbing and I really wish I could get it fixed ! @@energia ? I'm using vista, tried with/without antivirus, etc, the usual stuff. Being suspicious, I'm wondering if it started when I began with 5529 launchpad? It didn't happen with G2 chips. Are there any ideas out there on how to fix this??? Super thanks !!
  10. I just started having this problem too, @@energia. Started with version 14, which I recently upgraded to. When I hover over 'Tools', Energia hangs for a long time (minutes/minutes) before that menu drops down. I haven't had the time to dig into this yet, however. But, I'd jump at an easy solution if one came up in the meantime!
  11. There's a free programmer / loader I found. See below. It seems very nice, I used it a few times to save raw binary files, inspect / erase flash, etcetera. As I'm working primarily with LPs and single quantity projects, I don't use that tool. Maybe this is something for you : FET-PRO430 lite (free) http://www.elprotronic.com/download.html O
  12. Thank you ! I did not realize this about the FR5969 launchpad, thanks. <<< EDIT --- now checking that FR5969 !!!!! >> Interesting for me. Variable Vcc. Blow the fuse. (Others TBD?). Possible upgradeable with TI firmware (don't know). So, the MSP FET it is at that price. << but still checking the FR5969 >>>> FWIW - to confirm other folks' observations: - shipping cost is now included. To bad, but it was bound to happen - the discount code works - and deducts - right on the first page of ordering on MyTI - I like the new look
  13. The MSP-FET looks very interesting to me.... 60% off $115 is $46 price for this?!? >>>> Here is A REQUEST FROM A KNOWLEDGEABLE USER please? >>>>> Is this FET unit the latest / greatest MSP debug tool on available from Texas Instruments today ? I've read the forum posts and FETs, in general, seem to get great ratings across the board / CCS compatible / etcetera. ( to self: Is it time to buy an MSP-FET ?) Cheers ! O
  14. I've seen it and was impressed. (was it over a year ago?); but did not see much written at the time. Personally - I got a Saleae 8 bit instead at that time. Currently, I'm stalled on a Rigol as I'm OK with my Tektronix analog. I don't need much analog bandwidth for what I do with microcontrollers. NOW, I'm interested (again) in that Analog Discovery tool, because folks on this forum are very to-the-point. I'm curious about your real-life experience (eg: @RobG) EG: How is the logic analyser part - can it compare to Saleae Software? Is it really 16bit capture? On
  15. CONGRATULATIONS to both of you. This is wonderful news !! So she did indeed include "........., something blue."
  16. just curious - did you intend to post 'I2?C' ? i see 'software serial' posted .... cheers !
  17. first off, please note the 7447 maximum Vcc is about 6 volts, from it's 5 volt TTL heritage. i suspect that 9 volts could burn your 7447. i quickly add that i've pushed TTL and HC logic well over their Vcc/Vdd max on many occasions to get more speed (out of HC). secondly, a 7447 with 5v ---> this means that turning on 2 series blue LEDs, whose combined total voltage drop is somewhere around 6 to 7ish volts (batch dependent) might not happen if you stick to 7447 Vcc specs. so - your decision #1 is how to turn on those 2 LEDs reliably, for which you could try boosting the 7
  18. veryalive

    Mailbag

    oh well, fwiw: in my mail box today, not directly related to 430 stuff, but will be supported by 430 (read on).... ======= Crystals : ======= 1----- 4.194304 MHz. quantity 29. in order to build some IF filters for a 30 meter band ham radio transceiver. The LO is a super-vcxo based on standard 14.318 4x colour burst xtals. (LO - IF = 10.124 MHz. 30m band 10.1-10.15) MSP430 task - control various aspects of the radio: tuning/display/etc/ auto antenna tuner. 2----- 9.8304 MHz. qty 20ish. still indulging myself with hc811E and hc11F1 (3MHz vers
  19. veryalive

    A buffer?

    A very handy buffer IC, and often under utilized, is the CMOS 4050 (MC14050, CD4050, etc... also in HC ). This is a cheap way to protect AND translate high voltages (up to 15v) down to the low voltages (+-3.6) tolerable by the MSP430. With this buffer, you can safely input digital signals into the MSP430 which have a HIGHER voltage than the MSP430 supply ! Connect the 4050 supply voltage (Vdd) and ground (Vss) to the MSP430 supply & ground, and the 4050 buffer output(s) to the 430 input pin(s) ---- then 'external world' digital signals go to the respective 4050 inputs.
  20. yeah, i thougfht it was a shift register too, 74hc299 or 323 type, but there are too many wiring differences (or errors) for it to be that type - including no vcc/gnd.
  21. actually, the sound card scope is a great idea. i should really use it more often for low frequency stuff. here's the one i use, v1.4.1 (i have no affiliations, but take my hat off to herr zeitnitz):
  22. good to know about pulseIn ! i didn't use it at that narrow a pulse width (200 uS) glad to hear that you checked the source code as a bonus ---->> as an alternative, perhaps the Energia 'microcseconds' function micros(), with a call at the rising edge, a second call at the falling edge, then a subtraction. cheers,
  23. .... i'll throw my hat into the ring here .... if the question still is : 'how fast does this execute' ------> and additionally: - you'd like it to be easy to set up - you have an additional Launchpad and serial port (or spare LCD) available - you are satisfied with +- 10 / 20 uSec resolutions - you don't want / need a scope or logic analyzer then, in the spirit of 'rapid prototyping', here's an idea. please note I haven't done this, but i've used these energia routines myself. I use Energia and a bunch of handy, jumperized, IO devices for qui
  24. think of 'averaging' as a low pass filter in this case. if you use the 16-sample-then-average (window size 16), then one noise spike in that batch of samples gets strongly reduced. in the other case, where you take the last sample added to the running average (window size 2, sort of), if the last sample is a noise spike, it will come through distinctly. (EDIT 1 - in fact, it's a convolution - a time-domain rendition of a low pass filter - which can lead to some very interesting filtering in a 430 with the hardware multiplier. A FIR, if you're a DSP guy. Block averaging be
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