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Very good lecture thanks a lot

Iron

everywhere manufacturer, specs, magazines, books, web pages etc

Iron

Usually make a benchmarking, compare features, specs, price, support and select the best option.

Iron

Usually from register memory map from MCU's data sheet

Iron

Most of the times manufacturer and less frequent distributor

Iron

Usually follow standards of current employer

Iron

I usually first define number of I/O, fetures and select MCU first then select a close dev board or design a first rev proto board as dev board.

Iron

Books, internet - wiki, forums

Wizards are great option to start working with at the initial design development, use them all the time

From manufacturer or distributors

Safety is considered at the spec development and technology selection

Some time, choosing the kit has a default choice - just going with actual flow in the industry

Hello from Oregon, last session, end of semester 1

Yes I work in the gas detection industry so safety is always a big concern

I seem to always be following a few days late

Picking up the last one in the semester

Could not listen to on time due to DesignNews newwork error but now it sounds fine

hope listening to the archive and these posts qualifies for the starbucks coupons

Iron

after reviewing the posts, it seems others had the same problem I had, and that is this DigiKey web site displayed an "not available" error and could not access any of the first semester archives for at least 1 1/2 hours or more.

Iron

was able to listen to the archive, even though it knocked me off a couple of times, was finally able to get all the way thru

Iron

I was knocked off the archive and had to start over.

Iron

@ jl - something was wrong when i tried at the right time.     you ?

Iron

now yes, but i will need to do the course latter.

Iron

hello, is anyone still on this chat site

Iron

got blown off this archive...having to start over

Iron

now, the ofline works fine. 

Iron

i just got a "DigiKey" error page for few hours.

Iron

i could not login when it was online.

Iron

@rruther2 - are you listening to the archive now, or have you already gone thru it

Iron

I lost the connect some how and kept getting a delay notice.

about two housr later, I finally got through. 21 hours @ 49 minutes of sunrise.

 

Iron

couldn't get to the archives for over 2 1/2 hours, but listening to the archive now.

Iron

I tried signing on earlier, but just got a "DigiKey" not available error page.

Iron

hello, is anyone on the chat.

Iron

Jon, thank you for this week's and the previous sessions. They were great. I didn't know what to expect back in January, but the best outcome of this effort is that I'm left wanting more.

Design News and Digikey have provided an excellent way to introduce new technology, techniques and enough information for me to ask the right quiestions and where to start looking for answers. Thank you.

To all, see you next semester.

Dan

Iron

Jon, Design News and Digi-Key, can't say thanks enough for this informative week.  Extremely valuable information and recommendations.

 

Thank you for your kind words.  I have enjoyed the week and hope to return for the next "semester."  Have a good summer (northern hemisphere) or winter (southern hemisphere).  Bye for now.

Blogger

Jon, Design News and Digi-Key, can't say thanks enough for this informative week.  Extremely valuable information and recommendations.

 

Gold

Thanks for keeping the session open.  Another day when conflicts kept me from being here on time.

This has been a great series this week!  Well worth the time as Jon has provided real user evaluations.

Regarding hardware tools, buying from anybody except the manufacturer or an authorized distributor is either suicide or simply a repressed desire to work 7 days a week.  These are cheap compared to our engineering overhead rate.

Also, there is a lot of variation between the vendors into how durable programming tools and development kits are.  Specifically, the Microchip PICkits have survived numerous wiring errors on my part.  Microchip has the most durable and easiest to use that I have found.

Regarding slides 13 & 14, I need to know what the gates are really doing.  This is essential when the wizard does not work as advertised.  I have seen similar problems with library functions that do not work correctly.

Iron

@luizcosta, yes, see you next time.

Iron

OK, folks, I gotta go now, but will wait for my Starbucks GC. I wil definitely gonna try down here. :o)

 

See some of you next semester.

 

 

Iron

@luizcosta - by "these" I mean starbucks gift certificates (not micros)

Iron

@caa028: Don't know, but am sure willing to try. :o)

Iron

@luizcoste - can you use these in Brazil?

Iron

@tgk, you're welcome.

Iron

sure, more coffee for the trouble works for me.

Iron

manufacturer & distributer

Iron

@danlafleur - definitely will try at home! Thanks for all your help! 

Iron

GIFT: How many of you still online agree with me?

Iron

GIFT: I think Design News/DIgi-Key showld distribute Starbucks gift certificate to compensate for this total crash session. :o)

Iron

@luizcosta - same experience in Chicago... DesignNews was down between 1:00 and 2:00 PM CST

Iron

@tgk, too bad for the blocked audio. maybe you can get to the archived sessions at home. they are well worth the time.

Iron

From our perspective here in Brazil today, major crash on all DesignNews services today. Nothing available until past 3 PM EDT

Iron

OK, seems like my company is blocking the audio. I could not see the large red box above the Black "Post" button either. Thanks

Iron

slide 18 seems to be a worth investigating.

Iron

Seems like the audio is OK on this end

 

Gold

tgk, have a look at the large red box "design news radio" above the post window. the left hand side should have a play button.

Iron

@tgk - there is an applet from blogtalkradio.com on top of this page (make sure it's not blocked by our browser).

Iron

looks like the cloud is having trouble. i tried to refesh this page and got nothing. it's back to "normal" now.

Iron

Thanks Don H, How do I get audio? just attend this and I should have audio? I could not get audio for the past few days. First timer joining this series.

Iron

@tgk - recorede audio is running ok. there was partial website outage (www.designnews.com was just showing an error page) - may have affected me, gsmick, etc... but the lecture was recorded (listening to it now).

Iron

@tgk - I arrived late and the audio is running OK for me.  Try reloading the page to see if it starts.

Iron

tgk, go to the list of courses, see the link that syas archive. that will get the last sessions for you.

Iron

got pulled away, looks like there was audio trouble. hope the archive is OK.

Iron

Does anyone know how to get audio? is there another software I need to run?

Iron

Thought I was going miss it.

Iron

Glad that the lecture recording is available... looks like not everyone was affected.

Iron

Was a weird error - started exactly when the live audio stream was about to start and was not showing any of the lectures in the first semester...

Iron

Great.  Thanks Jon.  Great week!

Iron

Just got in... the designnews website was giving me an error...

Iron

Sorry to have missed the live presentation

Iron

I've only now (3:02pm) gotten in.  The link in the email sent me to an error, same with the Design news DigiKey CEC link.  Did anybody else have this much trouble getting in?  I had trouble with Verizon earlier.

Iron

I'll take a short break for lunch--back soon to answer questions and reply to comments. --Jon

Blogger

Thanks Jon for the time and for sharing this week.

 

My pleasure--and I had fun working with these four kits.

Blogger

Thanks Jon. I agree with you and would like ARM Cortex also.

Iron

Thanks Jon for the time and for sharing this week.

Can you explain DO 178 Standard?

 

Start here:  http://en.wikipedia.org/wiki/DO-178B

Blogger

Hi Jon, in your opnion does using a wizard remove teh requirements of understanding the operational details of the embedded pereferials?

 

It removes some of it, Dave.  I would use a wizard to get some code to start with and then examine the code to determine how it affects the I/O ports and peripherals.  You can get a good idea of the base-level code needed for hardware, but I'd want to know the details to ensure I knew what is going on.

Blogger

Did use IAR's MakeAPP, but they seem to have stopped updating. Important to get these from source that will maintain as new devices are released!

 

I hope you complained loudly to IAR and posted your thoughts on a forum or two.  Also, contact IAR's tech-support people.

Blogger

Hi Jon, in your opnion does using a wizard remove teh requirements of understanding the operational details of the embedded pereferials?

I'm aware of these wizard tools and need to verify the output of the tool to ensure that the desired capability is configured. They are usually a good starting point but not the magic bullet to address all issues.

True.  They also help newcomers understand what needs to get done to initialize hardware, set up interrupt-service routines, and so on.

Blogger

I don't think I'd be comfortable having the HW details hidden from me. For troubleshooting you do need to know the intimate details.

 

You can get into as much detail as you want.  The "wizards" just give you a head start.  Then you have code you can use as a skeleton and investigate all of the hardware operations as you wish.  It's always good to check that a wizard does what you think it does.

Blogger

sorry, I don't know why prints in latg font.

 

I don't know either.  I wish I could post answers right next to with the original question!!!

Blogger

Cmeadow6959 asks: Do boards come with emulator software that runs the code as if it is the actual board under test?

 

Many software tools include a simulator so you can test the code on your host PC and determine how it works.  This type of simulation does not involve a specific board.

Blogger

Thanks Jon, good series!!

Iron

sorry, I means I should follow up which one? cortax or MIPS in my future products

 

MIPS and ARM both license their designs.  I would follow up with the ARM Cortex-M3 or -M4 rather than a MIPS-based processor.  There are many more M3 and M3 MCU vendors and a larger variety of tools and chips.

Blogger

Jon, I appreciate the goal. Unfortunately being understaffed and the SW being the last part to get completed, the hardware team can be significantly ahead of the sw and be selecting MCUs based on incomplete guesses as to how much capability is needed for the MCU.

Suggestions on how to get a 106 year old company to change it's approach is appreciated :)

Cmeadow6959 asks: Do boards come with emulator software that runs the code as if it is the actual board under test?.

 
I
Blogger

MazianLab asks: Jon, there various type of MCU venders. Do you have any tip to compare these MCUs to select?

 

I wish I did!  You have to sort through the specs for each family and try to make an educated choice.  No easy way to do it.

Blogger

sorry, I means I should follow up which one? cortax or MIPS in my future products

Iron

REPOST

Does ATMEL/AVR have a JTAG unit that works with 8bit and 32 bit boards?

Iron

Hi Jon, I want to know you how to comment MIPS and ARM cortex-M device. I have both of them Dev-kit on the hand which is PIC32 and TI ...Cortex-M device. I means I should follow up cortax or MIPS in my future products. Thanks a lot.

Iron

Does AVR have a JTAG unit that works with 8bit and 32 bit boards?

 

Yes, the Atmel JTAGICE3 will work with both 32- and 8-bit boards and chips.

Blogger

MazianLab asks: Jon, there various type of MCU venders. Do you have any tip to compare these MCUs to select?

 
 
Blogger

LevitonDave asks: How do you keep the HW team from selecting an underpowered or mismatched MCU before the software team gets involved?

 

I would hope the teams work together and use some sort of model-based design that doesn't separate teams with the "brick walls" found in many organizations.

Blogger

Does AVR have a JTAG unit that works with 8bit and 32 bit boards?

 

Iron

Gamatec asks: How can i choose an architecture like MIPS-M4K or Cortex-M ?

 
Blogger

do boards come with emulator software that runs the code as if it is the actual board under test.

 

Yes, many of the software tools can simulate your code on a host PC and also simulate I/O ports to show activity caused by your software. The simulators come as part of the development software. If you need this capability, ensure your chosen tools have it.  Also, download tools and check out how the simulation works.

Blogger

GREAT CLASS!!! THANKS RON AND JON FOR THE INFO.

Thanks Jon for the presentation.

Iron

Thank you jon, another great lecture.

Iron

I get most "continuing education" from on-line articles linked by e-mail newsletters.

Good series, thanks to all responsible.

Iron

Thanks Rob and Jon!  Excellent week, very glad I spent the time with you.

Iron

Thanks Jon and Rob. It is excellent lecture.

Iron

sorry, I don't know why prints in latg font.

Iron

Thank you both Rob and Jon.

Iron

LevitonDave asks: How do you keep the HW team from selecting an underpowered or mismatched MCU before the software team gets involved?

 
Blogger

Thank you Jon for lecture series. Thank you Rob and Digikey for hosting

Iron

Slide 18 is worth it.

Plan on getting these books.

Keeping up-to-date - distributer contacts and manufacturer/tool vendor's e-news letters.

Thanks to both Rob and Jon for a useful week.

Thank you Jon for a week of informative lectures.

Iron

Thanks Jon, great class

Iron

Both Jack Ganssle books are great.

Iron

@cmeadows6959, boards don't come with emulator software. You can doawnload it free for three months. Then you should buy it.

Iron

Thank Jon, Great Lecture Series. 

Iron

My suggestion is to only use a wizard that generates C or assembly source, then do a code review to verify that the initialization is done as you expect. Take their source back to the data book, rather than the data book to your source.

Iron

We're now on slide 18.

Blogger

do boards come with emulator software that runs the code as if it is the actual board under test.

We're now on slide 17.

Blogger

Yes I used MSP430 code wizard.

Iron

I don't think I'd be comfortable having the HW details hidden from me. For troubleshooting you do need to know the intimate details.

Iron

We're now on slide 16.

Blogger

I'm aware of these wizard tools and need to verify the output of the tool to ensure that the desired capability is configured. They are usually a good starting point but not the magic bullet to address all issues.

Did use IAR's MakeAPP, but they seem to have stopped updating. Important to get these from source that will maintain as new devices are released!

Iron

Yes, familiar with MCU code wizards.

Iron

I never used them but it is interesting

I have mixed feelings about them. Wizards work well...until you have to figure out whats not working.

Iron

Never used one, but they seem handy!  Perhaps I just didn't know it was available for my MCU

Iron

We're now on slide 15.

Blogger

We're now on slide 14.

Blogger

We're now on slide 13.

Blogger

We're now on slide 12. 

Blogger

Usually there are two levels of cost for most MCUs - introductory "kits" with limited capability (inexpensive) and more flexible "professional" kits that are usually more expensive.

For the HW (programmer/debugger, dev kit) I go direct to mfg or distributor (DigiKey). I only look at eBay to find cable or connector adapter kinds of things.

Iron

I bought form DigiKey, cheap and very fast shipping. Last time shipping was less than 24 hours, from USA to Canada.

Iron

I purchase development systems mostly directly from the Manufacturer or a known-good distributor.

Iron

Usually through Distributers or directly from tool manufacturer. I've been using 3rd party (IAR/Keil) tools instead of MCU manufacturer tools.

From the Distributer

Iron

Vendor or distributors, mainly.  Sometimes via eBay if the cost is too high and I just want to become familiar with the hardware

Iron

Purchase from manufacturer or distributor (or when included in seminars).

Iron

Typically I puchase h/w eval boards from the distributor.

Iron

Purchase development H/w from distributors or direct.

Iron

Official Vendor or direct from manufacturer.

 

Iron

Purchase through Distributors, Digikey, Creatron, Sparkfun

Iron

Primarily from Digikey.

Iron

We're now on slide 11.

Blogger

dev hw from manufacturer.

Manufacturer, Digikey.

Iron

Jon, there various type of MCU venders. Do you have any tip to compare these MCUs to select?

Iron

We're now on slide 10.

Blogger

@kamjam, I have audio and is cealr.

Iron

We're now on slide nine.

Blogger

I cannot hear anything. Is everyone having the same problems or I am the only one facing it.

Iron

I would like know more about these SW safty standard. I know them not so much.

Iron

How can i choose an architecture like MIPS-M4K or Cortex-M ?

We're now on slide eight.

Blogger

We're now on slide seven.

Blogger

I'm familiar with H/w and S/w safety standards but I am not knowledgeable.

Iron

We have not used safety standard

Iron

We're now on slide six.

Blogger

Do not have any saftey standards requirements, unless you count TIA/ETSI...

Iron

Have not worked in an industry yet were SW safty was an issue.

Iron

My projects do not have safety requirements

Iron

DO 178 Standard is for aerospace.

No requirement for published safety specs, we do use MISRA.

Iron

I know somwe of them but I do not use them on a normal basis

Safety standards not rquired on most work. Yes for the electrcjhemical design work.

Iron

Our projects do not have safety requirements

Iron

Can you explain DO 178 Standard? 

Iron

Use both types of standards

Blogger

We're now on slide five.

Blogger

We're now on slide four.

Blogger

I was looking forward to attend this lecture.

Iron

Some software don't work whithout the kit.

Iron

Hi Jon good to see you with another exciting lecture

Iron

We're now on slide three.

Blogger

How do you keep the HW team from selecting an underpowered or mismatched MCU before the software team gets involved?

I buy a kit to learn more about the MCU and then use that knowledge/experience to select the best MCU that I'm aware of for my new project

Iron

We're now on slide two.

Blogger

We're now on slide one.

Blogger

Hello from Orange Co. Calif.

Iron

These slides look great - looking forward to today.

hello from Rockville MD

Good afternoon, everyone

Iron

Back again from sunny Irvine, CA

Iron

Hi from Portlandia - 60s and threatening rain all weekend :(

Hello Jon and Rob, I am here now.

Iron

hello from SUNNY miami...

Hi from Albuquerque. 81F now, going to 97F. 

Blogger

90 Degrees, partly cloudy in San Antonio

Iron

Hello from Warm and sunny Ontario near SE Lake Simcoe.

 

Iron

hello Jon, Rob and all from sunny northern alberta. it finally feels like summer at 22C/72F with bright blue sky and a pleasant breeze. That can change in 5 minutes though!

Iron

Welcome: We have smog in the Salt Lake Valley today caused by fires south of us and thanfully not threatening our area. Up to 87 degrees F and about 11% humidity. 

Blogger

Hello from Texas

 

Iron

Here we go!  Hello again from a hot and sunny Virginia

Iron

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

Blogger

-The streaming audio player will appear on this web page when the show starts at 2pm eastern 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.

Blogger

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

Blogger


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