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veryalive

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veryalive last won the day on September 7 2016

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  1. Promotion of MSP430FR2433 MCU LaunchPad™ kit

    Yes, the new FR2433 LP is a nice one; and good value-for-money. The I/O is generous and handy. I'm curious why TI configured it's internals the way they did. What is the end-user application(s)? Why the HW 32 bit MPY (yes 32), only a 10 bit ADC, CRC, small FRAM, large SRAM; etcetera. Thoughts?
  2. Suggestions on MCU/Chip Selection

    Like the old saying goes" "Better never than late".... or was that the other way around ?!?
  3. NRF25L01 MSP430 to Arduino

    I have used the nRF24L01 Spirilis library both on Energia and CCS; both worked well. I used it point-to-point. My target was '2553. My only wish is that I would have more time to dig into this library and this excellent, low cost nRF further; alas, not to happen soon. cheers,
  4. Hi all, Something called 'Pythagoras Week' means free shipping and a few discounts at the TI Store ... http://www.ti.com/lsds/ti/store/pythagorean-week-august.page?HQS=rtp-tistore-promo-pythagweek17-bitpp-lp-null-wwe
  5. Ah, OK. I see you are not using the SPI however. I don't have a CC3200 - I'll try this on a 2553 / 5529, E17 for interest, this weekend, just to see what happens. I use the SPI / I2C / etc on Energia to quickly try things, so your observation is of interest to me. Maybe someone else on this forum has more experience with your exact configuration....
  6. Which processor are you using? I'm wondering about SRAM memory limitations / buffers breaking. FWIW, I generally use Energia 17 for my non-CCS 6.3 projects; mainly using CCS however. mvg,
  7. My Stupid Question Space

    Yes, that's the logic analyser. Good price, too. I have 4 of these units attached to various projects / breadboards. And using two laptops the odd time. Cheers.
  8. Solar power display

    Yep, a great application. May I inquire : are you muxing the LED array one digit -or- one SEGMENT per digit at a time ? Any the 'ON' time ? Just curious how much current the IO pins can supply, it sounds like there's no series limiting resistance, which is perfectly OK. Cheers.
  9. My Stupid Question Space

    May I recommend that you consider buying a cheap (sub $10), 8-bit, low speed (eg 24 MHz), logic analyser sooner than later ? That, plus experience with the MSP430 'register page' of the CCS IDE 'Debugger' will be good friends to help you sort out the programming of MSP430 family peripherals. Welcome to the forum!
  10. Its definitely possible to program the 2553 / 28 pin device with the Launchpad - especially with CCS. So, likely there's a PCB / wiring issue on your proto. Looking at your schematic.... the capacitor C2 / 0.1 uF -- not needed. Reset needs a +- 30K pullup / 1nF to ground but this may already be provided - depending on where exactly you wired your jumper onto the Launchpad. Can we assume that you've got +3volt / GND connected? Anything else on the schematic we should know about? And I would start with the CCS 'blink' example (toggles P1.0 - often connected to an LED), just to check the communication via Spy By Wire. Keep going - it'll work !!
  11. I hate it when I forget...

    would those have been rev 1.4 -or- rev 1.5 ? just curious as I have both. Thanks
  12. More C versus C++

    The Dan Saks video is brilliant! Thank you for posting.
  13. Very nice to see some new, practical projects on the forum ! Its great to learn from these.
  14. Hi folks, I just spotted the TI Store announcement ----> Free Shipping on orders this week. http://www.ti.com/lsds/ti/store/engineers-week-february.page?HQS=rtp-tistore-promo-engweek17-bitpp-lp-null-wwe I haven't tried it yet. Cheers
  15. Set PinMode on 2 pins simultaneously

    Hi, I've been following your bit-bang I2C efforts. If you are making a custom version, perhaps using direct port I/O would be useful? As follows: P1DIR |= BIT7 + BIT6; // make these outputs P1OUT |= BIT7 + BIT6; // make them simultaneously go hi P1OUT &= ~(BIT7+BIT6); // ditto, but go low The only thing is that it departs from energia statements. I suspect you must have a scope / logic analyser or you wouldn't have known / measured the delay between the two PinMode statements you tried? Is this OK for your app? Cheers,
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