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spirilis last won the day on November 14 2021

spirilis had the most liked content!

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About spirilis

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  • Birthday December 8

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  1. That's great! I bought a 2nd one expressedly for that purpose although I haven't used it yet (don't have my soldering equipment out of storage yet so the debug header isn't mounted yet). Do you have any links or guides on how to use this with Arduino? (does it come with GDB and is there a GUI or is it all CLI driven GDB usage?)
  2. I'll admit I'm a little embarrassed that I didn't look into other offerings, like the Feather. Probably would've skipped the Pico. Alas, I have 2 of them now so might as well proceed with what I have. edit: Although, I see the Feather doesn't have castellated pins like the Pico and knockoffs do, so that's a factor. Maybe not though. Soldering castellated pins means you can't use the board space under the Pico for SMD parts, while through-hole gives you a small amount of clearance for some low-profile SMD parts.
  3. I'm also aware of this: https://www.tindie.com/products/invector/challenger-rp2040-lte/ RP2040 board with 4G LTE, that would be so nice. I am going to try to make WiFi work for me for now though. Key here is to have public wifi access points programmed in so it can "opportunistically" check in while on the go, if possible. Otherwise just having it attach to my home wifi, which is on the opposite side of the basement wall from the driveway, is great for me.
  4. For those following along, here's a few good links to bookmark: RP2040 Datasheet: https://datasheets.raspberrypi.com/rp2040/rp2040-datasheet.pdf Pico datasheet (the board): https://datasheets.raspberrypi.com/pico/pico-datasheet.pdf RP2040 Hardware Design recs: https://datasheets.raspberrypi.com/rp2040/hardware-design-with-rp2040.pdf Pico Pinout diagram: https://datasheets.raspberrypi.com/pico/Pico-R3-A4-Pinout.pdf Earle Philower's Pico core for Arduino: https://github.com/earlephilhower/arduino-pico Documentation for Earle's Pico core: https://arduino-pico.
  5. Previously I indicated I was going to hunker down with a nice warm cup of MSP430FR2433, and I still love that chip & will keep it in reserve for future "small" projects, but it turns out I have a big project I need to tackle soon, particularly jarring since I'm not "in the zone" with MCU development & electronics, if you know what I mean. I've heard somewhere around February 2022, AT&T is shutting down its 3G cell network in the USA - https://www.att.com/support/article/wireless/KM1324171/ Unfortunately many "connected" vehicles built in the past 10 years depend on 3G for
  6. I have some rights now. I'll check for spam daily when I'm able to.
  7. Of course in hindsight I am probably stepping on some copyright rules by having this printed, but I don't think anyone's going to complain about that... it's a developer's manual and I am using it for developing with TI parts after all.
  8. I decided "for the hell of it" to print out the MSP430 chip family User's Guide, all 676 pages of it (slau445). Total cost was ~$70 altogether including the $10 binder from Staples. I used bestvaluecopy.com for the printing - printed in B&W, with a thicker color cover sheet, 3-hole drilled, shrink-wrapped, and put it in my own binder. Reading the more esoteric parts of the book - like the PMM, SVS and CS systems - is actually much nicer in print I found. Just more comfortable to sit down at the table and *look* at the diagrams and text and hold my left hand under the page with the
  9. Can some of us get moderator rights? Take a load off your back I'm getting back into the hobby as of recent so I can watch it for now..
  10. I may have posted about this a long time ago, but I had written a library to utilize the Nokia 1202 cellphone parts LCDs - there are a couple BoosterPacks we made years ago using this and I have at least 1 working board in my bin of parts. https://github.com/spirilis/msp1202 The library includes "msp430_spi.c", which provides an implementation of SPI for several chips including some of the FRAM chips (FR5969 and FR2433 iirc). As the Nokia 1202 LCD does not break out the D/C line, it requires 9-bit SPI, and the "spi_transfer9()" function is defined for those chips (for all the eUSCI_
  11. Kicking off my MSP430FR2433 hobby effort I looked into the RTC peripheral, which amounts to a really simple stupid counter, the likes of which I often used WDT for back in the day. It just counts up to RTCMOD and then fires the ISR. So without the fancy date tracking that RTC_B did on the Wolverine chips, I had to up the ante a bit and write myself a library to convert "epoch" seconds format (# of seconds since Jan 1 1970 midnight UTC) into a "struct tm" year/month/day/hour/minute/second/etc. structure and vice versa. I looked around for other implementations and found some inspirat
  12. Finally getting back into it. No workbench yet, but I start a 4-week sabbatical after next week, so one task on my plate is to revamp the basement with new shelving + bigger work from home office & workbench. In the meantime, I noticed the older TI SimpleLink hardware seems to be deprecated - the latest SimpleLink SDKs no longer support them & it halts with PG1.x hardware (requires PG2.0+). So I threw all those launchpads away. I guess I'm getting old or maybe wise enough to realize when something isn't worth the effort... So my focus now is the MSP430FR2433 - the Value-Li
  13. Cool article! Random thought just happened upon me, I wonder if there's a registry of all semiconductor fabs in the world?
  14. Ha that is cool! I guess one side project I need to pick up "at some point" (code phrase for "sometime next century if I'm still alive") is DIY electrification of our bicycles. My son especially needs some motorized motivation... we moved to an area that's quite hilly!
  15. AI and edge? That sounds fancy... what kind of edge hardware?
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