D Low Supply Voltage Range, 1. D Ultra-Low Power Consumption:. With Internal Reference, Sample-and-Hold,. Converters With Synchronization. D On-Chip Comparator. D Four Universal Serial Communication.
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Arduino Robotics Lonnie Honeycutt. Holiday mode? KF Leong. What's a holiday? Was it Matthias? Well, he pointed out SLAA which summarizes the new features.
Not the user's guide but it sure got me interested in the MSP series. Finally the comparator has a mux, there are pull-ups, the BOR seems to work etc. Which, at least for me, means it can play. A time when it's time to leave the soldering iron cold ;- Merry Christmas, Joerg.
As much as I respect Steve, and as much as my own background is hardware, and I still love designing hardware, my favourite solder is Assembler. A hardware design the has no software requires a complete hardware re-design. Actually I have 3 projects running, to be completed by mid January. I would say: my favourite solder is Spice. No longer getting tangled with wires, less smoke of the blown components ;- , unlimited number of oscilloscopes Once I found a optimal circuit, then I start soldering It sure is nice to just work in VHDL and the floorplanners and get something complex up and going in a few hours and see it happen.
Gosh, that I would have been able to do so 30 years ago! Assembly and VHDL er alles! Soon after I thought "well, what's the point, an ASM wouldn't supppot my modified instruction set, let alone a C compiler Your flavour being much more ASM, maybe it would be worthwhile one day doing Since there's the F now, that wouldn't be a justified reason anymore either Maybe one day for the heck of it I lost jons mail somewhere, so I'll add my reply.
Sure you can create an MSP core, sure you could even make many instructions single cycle, but they cost more, suck more current, and are physically larger.
Their very nature ensures that they are an inefficient use of silicon, especially when implementing a micro core. Like any 'One size fits all solution' They haven't seen how big I am.
There will either be insufficient cells to implement everything you want, or too many for your needs. I know this usually happens with any micro design, but the micro is cheaper, lower current, and less effort. Perhaps one day I'll get the urge to implement my own ultimate micro in an FPGA, but, until then I simply don't want to spend the time becoming competent enough to be able to design to this level.
Until then I'll bumble along quite happily. I do it for play, Al. Not to make a CPU that I'll actually use in a product.
It's just lots of fun and a whole lot easier than having boxes and boxes of SSI chips and having to wire-wrap them to get something real happening.
Not just CPUs, of course. But anything. It's all just writing more software and I don't have to work to test out ideas and learn. However, the functions don't have to be static. You can reconfigure on the fly, if that's any use. Not that I really care about that. And if you need a way to test out a complex 50MHz MSP design and all of the surrounding hardware at full speed and have it ready to go by the time some 'real' 50MHz MSP design comes out Power didn't matter at all. We needed to test the chipsets at full speed and that meant we had to produce PCI and AGP bus traffic that would swamp the buses and keep them fully loaded through the testing.
FPGA was the only inexpensive way to do that, writing up different FPGA programming for the exact same physical boards to try out different mixtures of high speed traffic. This could be plugged into the motherboard and used to actually boot the BIOS, test out the motherboard design, run various applications, etc.
A great way to detect CPU bugs and fix them before they got into silicon -- where the iteration loop to the next test is shorter and much less expensive. I'm mainly just enjoying not having to wire wrap, yet being able to play with fun stuff.
Not for anyone else but me. Since the subject of "solder" came up, this was an obvious contribution since the solder here is just writing some VHDL code, compiling it, and loading it down. Same here.
Not only are they often extreme power hogs but then there is the issue of short product life. Many colleagues of mine loved programmable logic of whatever kind. Their boards ended up to be the most power hungry and the purchasing folks continuously hit them with obsolescence issues.
I remember having to redesign a CPLD portion for a client because the core part became unobtainium and the respective engineer was no longer there. So I scrapped it all and replaced it with regular 74HC stuff. Same board space, nearly eternal availability from a dozen sources and power dropped from about a Watt to 50mW.
Oh, and the cost also dropped by an order of magnitude so the director of purchasing took me out to a nice brewpub. Or this common scenario: Enough cells but half way through the design you realize that you have used up all the routing resources.
Every time I had to deal with arrays the routing paths looked like a Los Angeles freeway at pm. I guess you can, except for the 5mA. It'll be more like the Griswold's Christmas story. Regards, Joerg.
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MSP430F2618-EP Datasheet PDF
Cycle Time. One Calibrated Frequency. LF Oscillator. No External Programming Voltage Needed,. Programmable Code Protection by Security. The architecture, combined with five low-power.
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