Kevin Sargent (@CustomSarge)

BS Sys Sci MichSt '76, filed DBA '78. Worked for others for street cred until '93. Did Zilog development on the side from '77 to '96 then got recruited to join another shop. They were already established in Freescale, so I had to change. Lucky choice as Freescale had evolved to flash internal ROM while Zilog stayed too long in OTP ROM. Been coding 9(s)08 ever since. I probably should have upgraded to the s12 family, but the projects have always been within 8 bit power, our very well known platform.

Voting for the lowest hanging fruit: an O'scope! Can't have too many or too few channels - bandwidth is project dependent.

Re: Question re Servos

Reply posted 5 months ago (06/20/2022)
Howdy, 1> major distinction required. You're playing with RC servos. Yes they have their place, but rarely seen in industrial applications (no toys allowed).2>...

Re: How to reduce PCI latency to read host memory (Linux)

Reply posted 7 months ago (05/02/2022)
Does the latency vary? Is there a task priority manager in Linux? Are there other tasks running that you could pause or not need? What's the overall nature of the...
2.2k / 3.3k takes 5 down to 3.333.. But also see if the encoder will run at 3.3. A lot of sensors have quite a PS range.    G.H. <<<)))

Re: How to build a network of tiny micros?

Reply posted 10 months ago (02/07/2022)
Self configuration at powerup is an option. I wrote for a 2-16 node system that you couldn't control the way the end user was going to connect the nodes. So the...
Didn't know it's a bought module and known functional.You hit on something - block send. Note there are commands that want ~40uS to be accepted, the block send...
In this "neo-natal surgery" scenario, I'd write some atomic line set/reset code. I write asm, so I'm clueless on your code. But be deliberate in having data, r/w*...

Re: Audio Signal Filter

Reply posted 1 year ago (08/11/2021)
Howdy, 1st up: I'm bad w/audio (never get the SNR good enough), analog sensors not so bad.I'd be looking at various DSP mfgrs and their libraries of canned functions.Upside:...

Re: Another Noddy Question

Reply posted 1 year ago (06/08/2021)
I agree with Hodgec. You could also structure it without the zero fill since you have entry counts. It would make it easy to find all N number entries if required....
It can be handy depending on what processing you do with the value.Right justified is for dealing with it as a simple 12 bit value.Left is for treating it as a...

Re: 3V LED selection for commercial product

Reply posted 2 years ago (04/29/2021)
Howdy, in no particular order:Requesting advice when we have to look up the device referred to ain't a good start.A fully integrated RGB LED controller that includes...

Re: Contribution counters

Reply posted 2 years ago (04/29/2021)
AHhhh, I thought it simply counted posts. I'm just not getting many thumbs up "votes". That's fine by me, if I don't contribute in a meaningful way, I didn't earn...

Contribution counters

New thread started 2 years ago
Ok, it's kinda petty, but I DO post missives, yet seem to get no attribution.If you're stopping counting, then delete the column showing them. Otherwise keep them accurate:...

Re: External code coverage

Reply posted 2 years ago (04/28/2021)
Howdy, back ~3 decades, hardware state analyzers were common. They "camped" on data and address lines, unbeknownst to the UUT and allowed full state tracing. They...

Re: Questions re Coding Efficiency

Reply posted 2 years ago (03/30/2021)
Howdy, not certain "compiler" is right here. The compiler better evaluate / translate every possible path, since it isn't around at runtime. An interpreter probably...

Re: Communication protocol suggestions

Reply posted 2 years ago (03/23/2021)
Been doing I2C since before uCs had the module, but my colleague favored SPI. A recent project finally pushed me to SPI for low latency.If the chips used have onboard...

Re: Communication protocol suggestions

Reply posted 2 years ago (03/22/2021)
All good suggestions so far. Since speed isn't an issue I2C would be a candidate, but SPI is Much faster. Since you have a micro per node, you can just assign addresses...
Thanks for the vote of confidence, Now to the issue posed: do you want me to "sculpt" a lecture on debouncing ? Hardware issues are easy, software ones are more...

Re: SDKs and project management

Reply posted 2 years ago (02/08/2021)
I'm not referring to cross manufacturer mobility. You'd think a mfgr would make it easy to copy / clone projects as incentive to stay in their product family.

SDKs and project management

New thread started 2 years ago
Reading the Nordic SDK issue, let's expand the topic as in the title.I can't be the only one frustrated past anger at how SDKs make code and project portability...
Howdy, while it may be a bit mundane, I've developed a fair expertise in debouncing switching contacts. Hardware is Ok but software is controllable. If that's a...

Re: Recommendation of uC for smart home project.

Reply posted 2 years ago (01/21/2021)
Howdy, while I encourage your ambitions, I'll advise being careful. Don't implement high consequence devices before you're Real Certain it's fully failure proofed.I've...

Re: Skillsets from 8-bit, 16-bit, 32-bit

Reply posted 2 years ago (12/21/2020)
I'll add that it infers "right size" flexibility, competence in using the resources at that scale. Wide chips are overkill on small tasks while narrow might be able...

Re: Software driver SPI I/O expander

Reply posted 2 years ago (11/29/2020)
Howdy, I'm not a good C coder, so no help there. But SPI can run 12MBps while I2C is much slower. My point is, from a high level language, a well written transaction...

Re: UART with GUI interface

Reply posted 2 years ago (10/20/2020)
Howdy, you're not saying which OS or compiler. A DOS C++ has a short COM list. If C++ under Visual Studio, not a problem. I've got several BASIC under Visual Studio...

Re: Forums Update, Tips and Tricks - Please Read!

Reply posted 2 years ago (10/07/2020)
Howdy, did something go wonky with the "Top Contributors" counter?Not that I keep track... DOHI Do try to keep up with others (matthewbarr is my metric) in my relative...

Re: So, You Want to be an Engineering Manager?

Reply posted 2 years ago (10/05/2020)
Indeed, Thanks for view from the other side! I think it points out the "a good engineer rarely makes a good manager" principle. Good engineers usually don't possess...

Re: So, You Want to be an Engineering Manager?

Reply posted 2 years ago (10/03/2020)
BOOP, somebody dropped the "r" from "Engineering"...

Re: So, You Want to be an Engineering Manager?

Reply posted 2 years ago (10/03/2020)
All excellent points, to that I'll add delegate, observe, review, Don't micromanage or interfere. Be open to different approaches, neither accept nor reject, but...
Ah, seeing more, I'll suggest a uC for each display and a central one as master. More hdwe, but the slaves are easy, master is also easier since it isn't doing it...
Thanks Kocsonya for the detail, M3 sounds like a great winter endeavor. But, to the OP now (Captain wants the plane back).
I've written for Many different LCD chr units, 1602s are like Corn Flakes. The only difference I've seen is starting address of each line, or half line.It's a...
Hmmm, so it's the classic "once you get the first little code running" the rest cascades into line ?Whee, an orthogonal addressing aspect I MUST explore. I wrote...
If you're new to uController development, I'd suggest trying to fit it into an 8 bit device. I looked at the STM32 and saw a learning curve roughly as a wall. Others...

Re: Question regarding esistor tolerances

Reply posted 2 years ago (09/19/2020)
Ok, at the risk of inferring naivete: all mfgrs grade their products by yield.Logic chips used to be graded on speed, but they're fast enough now to be irrelevant.Complex...
Sad to say there is NO good answer in hardware, time constants for debounce will work on some, but not for others. It Totally depends on the mechanical build and...

Re: When is a State Machine not a State Machine?

Reply posted 2 years ago (07/20/2020)
Well, I suppose at a minimalist view, yes. I think of state machines as a set of outputs controlled by a structured set of inputs.I designed a light controller...

Re: Interface to program STM8 ?

Reply posted 2 years ago (06/15/2020)
Howdy, I'm doing projects with the STM8 series using ST Visual Development. I poked around ST, but don't see any IDE for other than Windows. You haven't said how...
Howdy, Something I need to 'mem/admit is I'm a 1 peep shop. Version control is "ok moron" where's the last functional version... As soon as you get to more than...
Sage neigh prescient stuff here:"Make your comments with the assumption the next person is a maniacal serial killer with a hair trigger - and your name is in the...

Re: Software Bugs

Reply posted 3 years ago (05/27/2020)
Howdy, Dilberto. My suspicions are that the overall complexity of the code precludes sufficient modularization to build assembler versions. However, IF it could...
Having been there when my colleague died, trying to port his code was silly - no and I mean NO documentation or commentary in the code.Writers of assembler document...
Howdy, Yes and Yes - It's why I write assembler... 40+ yrs and counting.HMI is a Lot easier in a higher level language and I can do that. But functional embedded...
Howdy, You've got 2 things clouding a quality answer: chip family (cpu core) and which compiler. In writing assembler, you'll Know what's best or necessary - no...

Re: A physical test emulator for embedded systems.

Reply posted 3 years ago (04/23/2020)
I've been down this rabbit hole a few times and found it to be a zero sum game. The complexity of the test side roughly equals the objective side with similar uncertainties....

Re: Does anyone have experience in RFSoCs?

Reply posted 3 years ago (04/21/2020)
I found this on Xilinx website:Zync UltraScale+ RFSoC ZCU1275 Characterization Kit  P# CK-U1-ZCU1275-GBut it's $20k !! Yikes. Being a school you might get a better...

Re: Covid-19 Stories

Reply posted 3 years ago (03/28/2020)
Howdy, power supply conversions are easy - for those familiar. PLEASE copy / send me any valid conversion queries.Been doing this type stuff 50+ years (no kidding).Mem:...

Re: Covid-19 Stories

Reply posted 3 years ago (03/26/2020)
I'm Kalamazoo, Michigan area, rural enough to not have many cases, as versed with Detroit area. Been work out of home 25+ years, some luck, much effort. Using this...
Howdy, it seems you're trying to be specific without any details. It's overall more general - specific is totally case by case. In agreement with other posts, here's...
Howdy, like any measurement what are the parameters?How accurate and fast are the quick two. If you need extreme accuracy, put a voltage data logger across a precision...

Re: Funny or Not Funny?

Reply posted 3 years ago (02/13/2020)
Howdy - Several takes:> Joke'em if they can't take a "F"> Constructively it's a vote for online "gatherings" of any sort. When I went independent in '91, my...

Re: A Project post experiment

Reply posted 3 years ago (01/26/2020)
Hi, Thanks, I've been in GitHub a couple times, not heard of Hackaday. At 66 YO, I sometimes have issues doing the tricks I know, let alone new ones. I wouldn't...

A Project post experiment

New thread started 3 years ago
I built a "toy" that I thought I'd share. Standard rules: no build to sell or taking credit for others' work, etc.It's a simple settable circuit breaker using an...

Re: Expect Downtime

Reply posted 3 years ago (01/19/2020)
Yup - Good Luck! We have an expression: 20 years ago casting metal was fun, now I just want the stinking crescent wrench!  <<<)))

Re: How to get a signal from 74595

Reply posted 3 years ago (01/11/2020)
Hi, Regardless your code, look at the datasheet, this is a 3 stage register - S/R, Latch, 3S Buffer:1> present serial data at pin 14, clocked into/through...

Re: 74F07N Hex Buffer And a Pixel Question!

Reply posted 3 years ago (12/27/2019)
Howdy, Yup, I stand corrected. Other than the "power pump" versions, both supplies are req'd on the Tx. I made the assumption integrated power pumpers were available...

Re: 74F07N Hex Buffer And a Pixel Question!

Reply posted 3 years ago (12/27/2019)
Like the Hat in 1st Harry Potter: Hmmm where to start...You're using an open collector high voltage, high speed (F series) as line driver with a pullup at the far...

Re: Digital PID controller implementation in C++

Reply posted 3 years ago (11/27/2019)
I'll suggest, on block mode exit, the difference in output is being resolved in 1 "servo" loop. There should be some constant that is the maximum change per loop....

Re: Software expands to fill the memory available

Reply posted 3 years ago (11/14/2019)
Not just cellphones - it's Everywhere. "Bloatware" and "feature-creep" have expanded app sizes and speed demands progressively since (I think) the beginning. IIRC...

Re: Outdoor LED Decorative Project Question

Reply posted 3 years ago (11/08/2019)
I'll suggest separating the power supply from the circuitry.Put it in an aluminum box as heat sink and seal it in.If the control circuitry builds any heat, do similar.Big...

Re: GPS(GNSS)

Reply posted 3 years ago (11/01/2019)
It's whatever is the convergence point of the sensor cables. If I have 5 temperature sensors going to a multiplexer / ADC, the mux / ADC is the only ground for...

Re: GPS(GNSS)

Reply posted 3 years ago (11/01/2019)
I'll suggest and have my betters verify/correct that shielding should be attached to ground Only at the system end. The shielding is not connected anywhere else....

Re: GPS(GNSS)

Reply posted 3 years ago (10/31/2019)
I'll second Dilberto, power is the first place I'd look.Second, you're not giving the entire signal layout. Is photoRX I2C alone? How long are ALL the cables?...

Re: Industrial RS485 converters

Reply posted 3 years ago (10/05/2019)
At 700m (~3000') you're quite limited in speed, regardless the cable used. Also cost of cable will be high or a deal breaker. I like the ethernet conversion way,...

Re: Can I control AC Power with Relays ?

Reply posted 3 years ago (10/05/2019)
No, seen but never used a USB / laptop 'scope. But the 6022BE at <$60 on Amazon, if it works as reviewed it's a good starter unit.A colleague recently needed...

Re: How to get the IR Remote Control Protocol ?

Reply posted 3 years ago (09/26/2019)
It's a Lot Easier to determine the carrier freq, buy the matching IR receiver and then learn each command pattern. A 555 drives an IR LED just fine, use reset to...

Re: Can I control AC Power with Relays ?

Reply posted 3 years ago (09/26/2019)
 The timer is easy, depending on the range, a 555 feeding a high number of stage divider. The CD4020 & CD4040 are a couple I use. The high power switching is...

Re: Why logic High input is logic low on I2C data bus?

Reply posted 3 years ago (09/24/2019)
I'll answer the title question. Since it's a bus (multiple devices sharing signal lines) it's Much easier to function as a "wired OR" configuration. Wired OR has...

Re: Can I control AC Power with Relays ?

Reply posted 3 years ago (09/23/2019)
I've built several IR "substitutes" by finding carrier freq (o'scope), and buying an IR receiver (Sharp / Vishay etc). Program a micro to record the pattern, maybe...

Re: Can I control AC Power with Relays ?

Reply posted 3 years ago (09/23/2019)
I'll concur but add that a homebuilt controller gives insurance carriers an obvious scapegoat if something goes wrong. That it's a commercial / industrial property,...
1> Better collaboration / integration of hardware & your code. The sooner that happens, the better Everyone is. Since I do both, it's easy, but I've had to...
Hmmm, I seem to mem you can't include the CRC field in a CRC calculation - it's a circular issue. Just take the data to be protected, calc the CRC and append at...
NAK is an appropriate term: Negative Acknowledgement. It's sent when you heard what was sent, just didn't like what it said. Since the protocol is a bus, getting...

Re: Rabbit 6000 I/O Bank Extended Register Issue

Reply posted 3 years ago (09/06/2019)
Sounds like a library file not being included, therefore register names aren't defined.

Re: Flash Memory

Reply posted 3 years ago (08/19/2019)
Let's start with what processor you're using. Then does it have a native SPI function and are you using it. I think the best way to learn a protocol is to write...

Re: Hall sensor Pattern

Reply posted 3 years ago (07/19/2019)
Hi, Silly me, how about finding another mfgr motor of same or similar size and start from their data. Then tinker with small changes to fine tune it. I've never...
Barring some compelling reason to "roll your own", I'd:Take power requirements: max voltage & current, motor build: hall sensored or not.> small power sensorless:...

Re: Embedded Systems Engineer Interview Questions

Reply posted 3 years ago (06/06/2019)
I'll suggest "backing into" the best questions. Starting with 1> What's the largest project you've been involved in and what were your responsibilities? I'd then...
A very nice introduction to good coding practices. Especially appropriate for those starting out. Anyone who's been coding 20+ years probably does most of this already...
A simple hardware answer: Schottky diode isolate power of the SD card, CC3200 and any other circuitry in the path. Measure the current draw of that section. Estimate...

Re: Choice of microcontroller for a project

Reply posted 4 years ago (05/11/2019)
As a beginner, I'd stay with the simplest and most familiar. You can always up the complexity and functionality. The PIC would do fine to start and I'll say write...

Re: Live Streaming #3

Reply posted 4 years ago (05/03/2019)
I think I'd have the most fun with the ST25-TAG-BAG-E. RFID is a topic I'm curious about and this seems to be a starter pack. So, again Thanks!How do we complete...

Re: Live Streaming #3

Reply posted 4 years ago (05/02/2019)
Hi, THANKS, I never win stuff...Could you tell me what I won? If it's a development kit for IoT or somesuch, I'd request it be put back and a different person wins....

Re: Live blog

Reply posted 4 years ago (03/29/2019)
...

Re: Live blog

Reply posted 4 years ago (03/29/2019)
How about asking mfgr reps to sit in as guests. They get some air to hawk their wares, you get to steer the narrative to how their products fit into the embedded...

Re: Live blog

Reply posted 4 years ago (03/29/2019)
You're doing fine. I'm at work, couldn't watch but a few minutes, will catch it all later today.

Re: DIY hi-fi

Reply posted 4 years ago (03/22/2019)
I'd start with an AC ammeter to verify I'm not exceeding ratings. I think you are and by a fair margin - ergo the heat. I suspect the loud buzzing is a lack of...
I'm with VadimB: if there isn't an inter-core comm, you'll have to make one. With separate chips I've used one pin to hit another that's set to interrupt - crude,...

Re: Datalogger for an embedded system

Reply posted 4 years ago (03/10/2019)
Verbally describing this kind of stuff is tough. I'll reapproach, this presumes a fixed length data block:It can be done with separate buffers or all in one. I'll...

Re: Datalogger for an embedded system

Reply posted 4 years ago (03/10/2019)
I'll agree with S-Light but with one tweak: instead of having one "use_next" location always used for next data storage address, one sector is used as a rolling...

Re: Preventing Forum Fatigue

Reply posted 4 years ago (01/18/2019)
I've been coding mostly assembler since '77 and haunt these type forums to teach fishing and glean some tips along the way. I'll 2nd both M65C02A and bamos: when...
Enter "ASCII" in Wikipedia - the nice chart in lower right of page 1 is Identical to a card I've had a Long Time. Everything you'll need for protocol commands are...
Couple things: You can compress the addresses into 1 byte - MSb is master, bits 6-0 are slave. Many protocols are possible, but 2 easy ones:Proto 1: master->slave1,...

Re: RB8 bit in serial mode 1 of 8051

Reply posted 4 years ago (12/31/2018)
I'm missing something -- a Stop Bit has No "value". It's the data end marker. Now if you mean a Parity Bit - that's easy: it is set (or not) to make the data an...

Re: LCD character update speed with AT89S52 micro

Reply posted 4 years ago (12/30/2018)
Human perception is in milliseconds, so you won't hit that easily. LCDs have 2 basic time constraints: commands and characters. I process character strings all at...

Re: LPC17xx, ADC and DMA

Reply posted 4 years ago (12/23/2018)
DOH, the LPC has a lot more features than a Freescale 9S08, nice chip.

Re: LPC17xx, ADC and DMA

Reply posted 4 years ago (12/22/2018)
Interleaving DMA is tricky at best. That you want 3 channels of data input at the same time, I'll suggest a simple interrupt that moves all 3.DMA is single stream...

Re: Adding a percentage to a 16-bit number in 8051

Reply posted 4 years ago (12/06/2018)
My code was for a customer's project and in Freescale (NXP) 68HC9S08 assembler, so not any help. For your task it's just convert to decimal then add back in those...

Re: Adding a percentage to a 16-bit number in 8051

Reply posted 4 years ago (12/05/2018)
Howdy, can't call it efficient, but when I need decimal operations on a binary, I convert first. To add a percentage operation on a 16 bit I'd:> allocate &...

Re: Low level programming

Reply posted 4 years ago (12/03/2018)
Off the top of my head:> Try to find an assembler book / guide for the processor you chose.> Get very familiar with whatever IDE (integrated development environment)...

Re: I2C ADV7403

Reply posted 4 years ago (11/19/2018)
Hmmm, this sounds like it's changing direction. The LSb is read/write* initially, so if it's changing the master and slave may both be waiting for the other. Anyway,...

Re: Help designing Embedded PI Controller

Reply posted 4 years ago (11/18/2018)
Howdy, I'm old school -- I do this in assembler, for the fastest execution I can get.If you can get acceptable response in C code, good on.If not, I'll work with...

Re: I2C ADV7403

Reply posted 4 years ago (11/16/2018)
Howdy, full $00 - $ff is best, but just a single bit in each position will show a stuck line faster. G.H.  <<<)))

Re: I2C ADV7403

Reply posted 4 years ago (11/16/2018)
Howdy, that's an assumption that may not be valid. Take a careful look at commands that work, I've had goofy coincidences like "everything that works had bit3 high".Your best...

Re: I2C ADV7403

Reply posted 4 years ago (11/15/2018)
Carefully reread the device protocol. IIRC, the addresses have to be masked in, bit set or just a set of constants. The problem looks like something is clearing...

Re: Flash Programmer, s19

Reply posted 4 years ago (10/26/2018)
The S series of record formats are intended to be a standard that any chip and any programmer can be compatably used. It's in ASCII text with a defined format so...
Signal timing pends who needs to get what at the same time (synchronous signals) as versed to event triggering sequences (asynchronous signals).You can have both...

Re: self-learning embedded curriculum

Reply posted 4 years ago (09/19/2018)
Jim_255 is Spot On. I'm 65 w/40+ yrs in hard & software. There's No substitute for Time in the Saddle. Find projects you want, then what others want, then those...

Re: ARM lpc2388 RTC with external crystal

Reply posted 4 years ago (09/06/2018)
Sorry, info missing.... Power supply volt setting? / Crystal using internal circuitry? / is power consumption an issue?3 sec in 24 hours is .0035%, check your...

Re: How to download a file through a RS485 link

Reply posted 4 years ago (08/27/2018)
If it ever works fine, the problem is going to be flow control and/or timing. I'd also try to get it to full duplex. But for big data block transfers, half duplex...

Re: How to measure distance between two sensors

Reply posted 4 years ago (08/01/2018)
Distance is straightforward, many methods.Range and resolution will dictate method effectivity.Wide range may warrant multiple methods 3D space relative position...

Re: i2c-tools with custom EEPROM

Reply posted 4 years ago (07/25/2018)
1> if potting compound is hard / "chipable". If so, carefully expose the IC top for make / model.2> if potting compound is soft, gently heat and scrape off...

Re: Measure Frequency using STM32F4

Reply posted 4 years ago (07/21/2018)
Hmmm, so the sensor issues pulses of N cycles of 6MHz? Totally different situ, warranting a demodulator for 1 pulse per burst.The whole "count pulses across time...

Re: Measure Frequency using STM32F4

Reply posted 4 years ago (07/21/2018)
As to method: counting sensor pulses with a fixed interval for sample freq will work better than a free running counter with the sensor as sample freq. Unless your...

Re: Event Driven Protocols for RS-485

Reply posted 4 years ago (07/17/2018)
Hmmm, I suspect a commercially available comm stack would have issues of cost and customization, that's if you find any. I also think any solution will be it's...

Re: Embedded Systems Project/ consultation needed

Reply posted 4 years ago (06/18/2018)
Hmmm, I can appreciate ambition, but the scope of work and your experience level makes this a tall order. That said, here's how I'd go after it:>> First,...
Can't say how applicable: I've copied a block of flash to ram on power up, used ram for all uptime. At power down, a "fair" sized capacitor gives the uC time to...

Re: Sensors & Embedded Systems - The Basics

Reply posted 5 years ago (05/30/2018)
I can't add much to what's here, all Very well expressed. So, I'll throw a bone from the opposite end.Cheap precise medium range (5-40VDC) voltage measurement. Voltage...

Re: Wanting to get back into Embedded Systems

Reply posted 5 years ago (05/09/2018)
Howdy, no "yellow" water fight here, I come from a time when compilers frequently got in the way of efficient code. This is no longer true, but habits persist. The...

Re: Wanting to get back into Embedded Systems

Reply posted 5 years ago (05/09/2018)
Howdy, Sorry but any compiler has to make assumptions about what registers to save on interrupts & subroutine calls (amongst other stuff). In assembler I don't....

Re: Wanting to get back into Embedded Systems

Reply posted 5 years ago (05/09/2018)
Howdy, you thinking the STD bus? I seem to 'mem them as 4" x 6" as well. <<<)))

Re: Wanting to get back into Embedded Systems

Reply posted 5 years ago (05/09/2018)
Howdy, and Welcome Back to my favorite form of lunacy!I'm old school: I can write C, but prefer projects small and terse enough to do in assembler. Cut my teeth...
Ok, Geezer spouts old school: Real benchmarks are best done within the code you wrote. I use a simple bit/line toggling of/between locations I need metrics on....
Howdy, Been here done this: A> I can see doing the sleep/wakeup cycle, since sleep is So much lower power.B> Using a capacitor as a reservoir has saved me...
Howdy, I came up through developing Z80 w/OTP PROM. Expensive, and made jumping to Freescale w/flash worth the learning curve.  Ok, here's my take:Dynamic RAM:...
Howdy, I'd pick from the pool of well featured mass produced boards: Rasp Pi, Arduino, etc. To roll your own with the WiFi aspect alone is stupid, this wheel is...
Howdy, most flash and sensors I deal with are I2C or SPI. So, if this is the case, this'll sound more complicated, but it's a tradeoff: likely your uC doesn't have...

Motorola / Freescale / NXP 9S08xx devices

New thread started 5 years ago
Howdy, nooby here, but been coding Z80 since '78, 9(S)08 since '99.Any colleagues out there? I've got a fair sized code base I'm willing to share."Enlightened self...

Re: Problem when using MSP430G2553 without Launchpad

Reply posted 5 years ago (04/01/2018)
Big YUP on decoupling. I'm a fan of separate voltage regulators to Really decouple branches. This is more $, but you can start there and see which branches are more...
Ahh, a person of my era: Genesis, Supertramp and Pink Floyd got me through Engineering school at MSU. Thanks for adding the link, I'm only now getting into webpage...
Being a geezer, mine is from ~1975: Sparticus by Triumvirat

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