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I am not using a commercial RTOS at this time.  Using a home-brew Assem language timer which interrupts

Iron

Looking at archive.   ...tap...tap...tap....Is this thing on?

Iron

but now I looking on FreeRTOS, CMX, and uCOS-III as 32-bit MCUs goes cheaper.

Iron

[view archived] Answer for Charles' question: "To get a feel for the background of our audience, Are you currently using a commercial RTOS (including one provided by the chip maker)?"


yes,- AVR's one - included in USB examples, convinient for small multitasking project as it for AVR MCU.

Iron

It is mostly 32-bit.

Iron

Good morning from Mobile, AL

Not shown: PWR / RST, ERROR RST.

Two buttons pressed simultaneously

Still learning about RTOS

No current work with 8 bit mcu

Thanks Charles. ? Question for tomorrow. Do you know much about VXWOrks RTOS and could mention some highilights if your familiar enough with it?

I have not used TI's RTOS but have heard some positive things about it.

 

Iron

Yes, TI RTOS: http://www.ti.com/lsds/ti/tools-software/rtos.page

Iron

Hearing none, I appreciate all of your attention, comments, and kind words. Talk to you tomorrow!

Iron

Hi cjlord,

TI real-time kernel is a RTOS?

 

Iron

Any other questions?

Iron

As to chip houses providing RTOS, yes many do. Freescale has MQX, that they bought and provide 'free'. TI is coming out with a new one. Many other houses provide and support 3rd party such as Micrium's instead of their own, or in addition to theirs.  My guess is that Micrium μC/OS-II (III) is probably the most popular as it works on most platforms out there. I use MQX from Freescale the most as I am primarily a Freescale house (dating back to Motorola days).

Iron

? Charles, can you name some RTOS systems in use today by popularity?

thanks Charles and Chuck. Interesting and will be back tomorrow.

Iron

There are no other sensors or controls on this simple example. No headed drying, sense for clogged drain, etc.  AGAIN, this is for coding example and not real world.  BUT - I like the questions as you are working that engineering mind to ask these up front.  We hate feature creep, and bad, incomplete specs, don't we???

 

Iron

Thanks for the seminar

Code will be available. Snippets for now, full code should be on my website about end of week.

Iron

What type of soil or dirt is being washed? Can the pump be plugged? Is there a way to measure output pump pressure?

OK I am back - the code examples will be in C.  The design is for a Freescale MCS08JM60 processor, just because I have demo boards for this and it is a nice processor to use.  I would have used the 5V appliance processor in this family in 'real life'.

Iron

Thank you very much

Iron

What happens with multiple user input commands? Someone (a child) repeatedly pressing the start button during different machine states.

Another use for a watchdog timer: If fill time is excessive, then something is wrong. Low water pressure, blocked inlet, etc. This could replace a high,high level sensor.

I think it would be better to display the state of the graph that would have a full picture

I think that some "idiot proofing" may be useful.

 

Iron

Thanks for the presentation.

Iron

Features: does design include heaters and temp control?

what language will you be using for trhe examples? C?, assembly?

Iron

good review of breaking down to states a problem.

thank you

Iron

My question is some company provide theirself's real-time kernal such as TI. It is a RTOS?

Iron

Charles,

I'm hungry for meat and potatoes

Iron

This sounds like it's going to be a great week

Thanks all - will be back in one minute to answer questions! Coffee first...

Iron

Good overview Charles. Thanks!

Iron

Thanks Charles, Chuck, & DigiKey

Iron

Thank you Charles.

Iron

Thank you for today's presentation Charles

Iron

Thanks Charles Chark.

Iron

Thanks Charles and Chuck

Iron

Thank you Charles. I look forward to the next

installments. -Tony

Iron

So far, so good, Charles.   Thanks!

Iron

Thanks Charles and Chuck. Quick but thorough.

--- What is the beenifit to use rtos inted of state mashine?

--- what is the guidline to making states , if we want  to make on friday RTOS?

 

 

Iron

Thank you Charles.

Iron

Thank CJL and everybody!

Excellent Thanks Charles! 

Iron

Thank You.  Very interesting

Iron

No questions today.  Everything was pretty straightforward.  Thanks, Charles!

Iron

Thanks Charles. Looking forward to tomorrow.

 

Iron

Thank you for today's presentation

Iron

Thanks, Charles, Design News and Digi-Key

Gold

Are you sharing source code too ?

Iron

thanks Charles & Charles

Iron

What type of code will you be using for the examples? C? Assembly? Linux?  etc.

Iron

Can't wait to look at some code!

Iron

different wash cycles; delicate, heavy..etc

 

Silver

Missing feature: multiple washing programs

Iron

State resumption from interrupt as other have mentioned

I'm struggling to see multitasking here.  This is just an old tired state machine (shoot me in the head).

Tepmerature sensor failed

Iron

additional sensing, temp, water clearness, motor current for load determination etc

Iron

slow/plugged water valves (solenoid)

 

Iron

how to resume from an interrupted cycle.

 

resume after door is closed again

Iron

Different types of wash cycles, like "heavy", "delicates", etc... they all may have different wash timings, etc

Iron

The ability to automatically lock the door unless there is no water in the device and a message on the LEDs (SS, or aomething unique like an error (E1) to alert the customer.

Iron

No water flow detection

drain time is fixed, risking burning out the motor

Iron

Recovering from unlocked door.

Iron

Heating, Soap Dispenser, Time Limits waiting for sensors

Iron

Missing closed loop control.

Iron

no way to resume when a state is interrupted

Iron

Overfill protection.

Iron

Mising feature: Continue cycle after reclosing door

Iron

missing wash quality tests for process QA

Iron

Charles' question: "What is the biggest missing feature that you see?"

Blogger

watering heating state, dry cycle, reduce energy concumption mode (light wash), etc

power interruption if MCU kept with backup

Iron

low water lever sensor?

 

Iron

Watchdog timer to see if wash cycle has exceeded a max value

blocked or jammed wash arm

 

Iron

Always good to have a user input for pause/cancel.

error for clog or motor jammed

Gold

real-world errors, no water, low presure, no water heat, over temp, motor stall, water overfil clogged filter...

Iron

Possible Errora: no water, drain clogged, sprayer jammed

CMX RTX for one, looking at MQX for freescale project

 

Iron

Low water, open door

Iron

Redundant switches for door switch and water level

Iron

Water not draining.

Iron

Other error conditions? Blocked drain, no water input, lack of heat...

Iron

Is it draining water correctly or at all?

 

Silver

Resume - door open and close

 

Iron

motor stall, low water

Iron

error for overheated motor

Gold

Temperature sensor

Iron

Charles' question: "What sort of error or other conditions would a real example address?"

Blogger

CMX RTX for one project.  InHouse developed for other project.

Iron

SafeRTOS and embOS...

 

Iron

some proprietary RTOS, mostly state machines

Iron

Hello from Delray Beach

P:lease cover Real Time Streaming of audio and video in your discussion.

I use FreeRTOS and Micrium.

Iron

Not yet on my actual job

Iron

RTOS:  sometimes...about half

Silver

Looking at FreeRTOS

Iron

We are going to us RTOS of TI.

 

Iron

yes commercial RTOS, Nucleus

Iron

Still learning, but after this week i might ;)

Iron

Not using a commercial RTOS.

Iron

Not using an RTOS at this time

 

Iron

Have used Freescale's propietary RTOS

Iron

We use Nucleus to test our flash driver code.

 

Iron

Anticipate using chip-manufacutrer's RTOS. Nothing shipping at this point.

Iron

I have never used a commercial RTOS.

Iron

Yes to commercial RTOSs, i.e. ThreadX

Iron

Experimenting with the Samek State Machine.

Iron

Not using commercial RTOS

Iron

third party RTOS, not from Chip manufacturer

Iron

I am using uCOS-II

Iron

not using any third party or free rtos at the moment. 

Iron

Just using free stuff at the moment

Using FreeRTOS ported to Arm

Yes, using commercial RTOS.

Iron

FreeRTOS with Atmel SAM ARM

 

Iron

not using RTOS currently

Gold

Charles' question: "To get a feel for the background of our audience, Are you currently using a commercial RTOS (including one provided by the chip maker)?"

Blogger

is there any live meeting going on?

 

Iron

nevermind, didn't realize if was a download.

Gold

Ah, sound is back

Iron

Lost the audio

 

Iron

Lost the audio

 

Iron

slide deck doesn't work. Using Safari ona mac.

Gold

But mostly 32-bit these days.

Iron

I'm using the PIC 8 & 16 bit.

Iron

8, 16 and 32bit controllers 

Iron

Occasionally developing with PIC18

Iron

raspberry pi for me

 

Silver

8 & 16, exploring ARM

Iron

32 bit, non ARM based

Iron

mainly 16 and 32 bit

Iron

16/32 bit and ARM

 

Iron

8 bit still used in automotive but costs are pushing us up to 16/32

Iron

Everything I work with now is 32-bit... occasionally we have some legacy 8/16-bit processors that we maintain.

Iron

Still work on 8 bitters: Freescale, Atmel and Infineon.

Iron

I did a lot of 8 bit in years gone by, but everything for a number of years has been 32 bit.

Iron

I am working with 8-bit AVRs right now. Using Super Simple Task Switcher as a basis.

Iron

Now just use 16/32 bit MCU such as PIC24 and ARM cortex-M3. No 8 bit again.

Iron

I still use 8 bit processors when they are able to do the job. 

Iron

8 bit and 16-bit

 

Iron

Not using 8-bit anymore (mostly 16 and 32 bits)

Iron

A lot of my applications don't need exotic communications, or a complicated user inteface, so 8-bit works fine

I do use 8-bit procs occasionally.

Iron

8-bit PICs, 16-bit MSP430s

Maintenance only for 8-bit ('51), new designs are Cortex-M

Iron

Occassionally 8 bit PIC parts.  Mostly ARM Cortex M0/M3 now

Just starting, but it will be ARM

Iron

i'm designing with 8 bit but moving to ARM 32 bit now.

 

Iron

mostly 16 /32 bit, some legacy 8 bit

Iron

Primary ARM family

 

Iron

I'm mostly 16-bit and 32

Iron

Not development, but support

Iron

using only 8 bit right now !

Iron

10-20% 8-Bit, the rest Arm Cortex.

Iron

some legacy products have 8 bit but we are migrating to 32-bit ARM

 

Iron

8 bit here! 8051 family.

 

Iron

legacy products still 8 bit uC, moving to 16bit for new systems.

Iron

I am. 8 bit and 16 and 32 ...

No 8 bit; use 32-bit ARM

Iron

Use 8 and 16 bit.  Been lucky that the 4-bit processor was discontinued!  :)

Iron

I work primarily with 8 bit

Iron

Work with 8-bit to 32-bit

Gold

8 bit sometimes just for fun

Audio is fine in OS X with Chome on DSL. Bit hard to feel good that I am looking at right slide with lecture, you are a bit old school. ;-)

Iron

how many of you are currently developing with 8-bit processors?

Blogger

In Chrome, I get intro sound and then I hear Mr. Lord start talking and then all freezes.

 

Iron

Audio good here using IE

Iron

Hello all - If you are having trouble and have already tried the fixes I posted a little while ago, the class will be archived on this page immediately following the class and you can listen then. People don't experience any issues with the audio for the archived version.

Audio working in IE8

Iron

Works in Chrome too.

 

Iron

Audio breaks on and Off

Iron

Hi Mr. Lord, Hear you loud and clear! 

Iron

Hi charles,

I have a question is some company provide theirself real-time kernal such as TI. It is ROTS?

Iron

Audio working in Firefox

 

Yes, audio should be streaming.

 

Blogger

I get the intro sound, but then nothing.

Iron

Audio good here. Using Chrome.

Iron

Hello from rainy Toronto.

Iron

Not working for me, either. Have refreshed & tried other usual fixes.

 

Iron

I did. Instead of the audio bar, I got the blockade message.

Maybe I'll be able to get it in the archive...

Gold

Is audio streaming?

 

Iron

@dbell5 - try refreshing the page

Iron

Good evening From Bremen/Germany

Iron

AUdio blocked by #%$&^^%$ corporate firewall!

 

Gold

Hi from Chihuahua

 

Iron

@tpiebel, The audio bar just appeared below the class title. Click on Play.

Gold

Hello from Sunny Saint Louis, MO

Iron

Hi all -Audio is live! If you don't see the audio bar at the top of the screen, please refresh your browser. It may take a couple tries. When you see the audio bar, hit the play button. If you experience audio interruptions and are using IE, try using FF or Chrome as your browser. Many people experience issues with IE. Also, make sure your flash player is updated with the current version. Some companies block live audio streams, so if that is the case for your company, the class will be archived on this page immediately following the class and you can listen then. People don't experience any issues with the audio for the archived version.

@CJLord - I would rather have you post an accurate PPT than an outdated PDF

Iron

Where is the link for the audio feed?

 

Iron

I like to keep the slides in ppt so that I can use them in the next class (hahaha). Trainer humor...

Iron

@78RPM - I change them to PDF for the same reason

Iron

I like to keep the slides in PPT so I can make notes on them.

Gold

Good morning from Reno, NV.

Iron

Gotcha, CJLord. I convert them from PPT to PDF for usage during seminars, so I like to batch 'em.

Hi from Calgary Alberta

 

Well, there's only one, so good possibility!

@bitbanger55, they will up soon.  I am tweaking them acording to feedback from today.

Iron

Hi from partly Cloudy Boston with great temps and humidity!

Iron

hello all from Edmonton, Alberta.

Iron

@Alaskaman66 - I was in Valdez nine years ago. I think I saw you in the grocery store.

Iron

where is the link for the live class ?

Iron

Good morning again all, Welcome from sunny Asheville, NC! talk to you in six minutes!!!

 

Iron

Greetings from Metro Boston. Nice 72F.

Iron

Where are the slides for Tues - Frid.?

hello from Mishawaka

Iron

Yup. Moved here in '66

Hello from Iasi, Romania

Iron

Alaskaman,

Are you hailing from Alaska?

 

Iron

Haven't been to Vermont yet. It's the one New England state not visited. But I as born in Maine

Still waiting for the Sun, in Sunnyvale, California!

Gold

Cloudy and cool in Vermont

Iron

Good Day from San Diego, CA

Iron

Aloha from Montana. A sunny 68 after a welcome rain.

Gold

@EdB_Vt  Amazing that even one person from VT is participating!

 

Iron

85 degrees F in Chicago. Going to 90.

Blogger

Good Morning from cool Valdez - 59 deg.

@homewatts North Springfield, Vermont here. Vermont can give Alaska a run for per-captia participation.

Iron

Hello from Gor, Hungary :)

 

Iron

Hello from sunny Atlanta

Iron

Greetings from Lyndonville, Vermont

Iron

hello from Timisoara, Romania

Iron

Greetings from Vermont

Iron

Hello from cloudy and cool Mayfield Hts Ohio, the home of Rockwell Automation's Advanced Technology lab.

Hello from Russia, Saint-Petersburg

 

Its Monday, brand new week. I hope everyone had a pretty good weekend.

Iron

Hi from ridiculously sunny and beautiful Seal Beach, CA...

Iron

Hello from Waterloo, ON, Canada

Hello everyone from Summerville, SC

Iron

Hello from Binghamton, NY

Iron

hello from SW Michigan

Iron

Hello from Scottsdale, AZ

Iron

hooooowwwwwwdddddddyyyyyyyy.... I'm just so glad to be here

Iron

@Lt.Dan - too true! I would summer in PDX if I could. I hope to make it back out there before the monsoon season for some live classes.

Iron

Good Day from Huntsville, Al

Iron

Hello from Longmont, CO

Iron

Good afternoon from South Central PA!

Wayne from Central NY says high.

Wish i were at the fair!

Iron

-Be sure to follow @designnews and @DigiKeyCEC on Twitter for the latest class information. We encourage you to tweet about today's class using the hashtag #CEC.

Blogger

Hello from Minnesota (TG for air conditioning)

Iron

@cjlord - Good one about Portland. It has been rather dry here this summer, but that's not unusual. I tend to tell folks that it rains only once a year in Portland - it starts in October and ends in May...

Iron

-Please join our Digi-Key Continuing Education Center LinkedIn Group at http://linkd.in/yoNGeY

Blogger

Hi from rainy Toronto

Iron

Hello from Beaverton, Oregon.

Iron

The streaming audio player will appear on this web page when the show starts at 2
PM Eastern time today. Note however that some companies block live audio
streams. If when the show starts you don't hear any audio, try refreshing your
browser. If that doesn't work, try using Firefox or Google Chrome as your
browser. Some users experience audio interruptions with IE. If that doesn't work,
the class will be archived immediately following our live taping.

Blogger

Rich, I tend to bring out the most lively folks. We always have a great crowd!

Welcome all from hazy Asheville, NC - the #2 over-rained city in the US. We are over 20" above normal for the year, and it is SO RAINY here that I went to Portland, OR for a week to dry out...

Iron

Good evening from Valladolid, Spain, at the other side of Atlantic sea

 

Iron

Greetings from the garden spot of the universe - Minneapolis.

Morning from sunny North Pole, Alaska.

Iron

Hi from Panama City, FL.

Iron

Be sure to click 'Today's Slide Deck' under Special Educational Materials above right to download the PowerPoint for today's session.

Blogger

Hi good morning everyone from Vancouver, Canada.

Iron

Sorry, no tofu today! I do tend to throw in a lot of corn, though!

 

Iron

I'm not used to students with such great senses of humor. As for how do we find such great presenters, it's from a variety of sources. I have seen many of them present previously, and others come through trusted recommendations.

Blogger

Morning from Portland Oregon

Iron

Vegans? Meat and Potatoes? 

Here I was thinking we were going to digest some bits and bytes.

Coming to you from rain drenched Aurora Ontario.

Iron

Me, too, bitbanger55. 'course being a vegan myself, I'm sure our instructor's table will have plenty of tofu, veggies, and fruit for the mind. How does Design News and Digi-Key find these great instructors?

Gold

Can't wait to dig in to the PPT slides. Meat and potatoes .



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