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Listeners, I just want to remind you that this DNRadio program will be available as part of our permanent archive. Thanks, all, for listening and thanks again, Keith, for your expertise.

Blogger

Thanks for the informative show, Keith and Chuck.

Iron

Great job. Thanks, Keith.

Blogger

Well, automotive is a bit unique in that it has to work in the hot Arizona sun, and a Michigan winter.  It also has to tolerate high EMI/RFI when you drive past a cell tower or a radio station.  So, microcontrollers that can handle harsh conditions are a must and an extended temperature range is a must.  Beyond that it gets back to what you have for inputs, what you need for outputs, and how much processing power do you need.  You also want to take a look at some of the peripheral components like crystals, sensors, hi power transistors, and the like.  All have to handle the environment at worst case loads.  So again, it depends upon what you have to do and how fast.

Iron

Thank you all hear you soon.

Iron

Thanks, Keith and Chuck. You haven't mentioned automotive. What about some of the autonomous automotive applications, like collision avoidance? What kind of MCUS do those applications need?

Iron

For long term applications, I would suggest microcontrollers with reliable supervisory functions.  I would also suggest parts that have self programming capabilities for in field upgrades.  Also check the endurance of the non-volitile memory.  Beyond that, test it as best you can for all the expected, and unexpected, operating conditions that you can think of.

Iron

Well, I think you want a microcontroller that has reliable supervisory features such as a watch dog, power down reset, and good EMI/RFI resistance.  On top of that, you also need a microcontroller that is approved for medical implantation and a company that will warent their parts for medical.

Iron

The question about implantable medical devices is interesting because so many of these devices have to operate for years without intervention. For such applications, are the MCU considerations any different?

Blogger

Well, again, that depends on what your are trying to do with the system.  If you are managing an analog feedback control, then bit sets and bit clears play an important role.  If you are implementing filters in software, then multiply accumulate instructions are important.  I don't know that you can really say that this instruction is important for mechatronics, and that one is not.  It will depend upon what you are trying to do with the system.

Iron

What MCU features should I be considering for implantable medical devices, such as pace makers or defibrillators?

Iron

How many instructions, in the instruction set are really necessary for control purposes? Which of them are fundamental?

 

Iron

Well, a feedback control is basically a low pass filter with the specific poles and zero necessary to stabalize the loop.  DSP is how we create fast/efficient filters in software.  So, if you are going to do a mechatronics control in software, I think you are going to end up with a DSP, it just makes sense.  So, yes, I think DSP has a definite role in mechatronics.

Iron

One thing we didn't discuss, Keith, is DSP. What's DSP's role in mechatronics?

Blogger

Well, for simple applications it certainly has the processing power, and 8-bit tends to have more in the way of control peripherals (PWM, ADC, comparators).  However, 16 bit has more processing power for software based feedback.  I would say that most of the current mechatronics apps use an 8-bit, but as complexity grows, they are going to have trouble keeping up so you will probabaly see more 16 and 32 bit in future designs.

Iron

Which is the aadvantage in using an 8-bit microcontroller? Do it satisfy the processing speed requirements for most of the mechatronics applications

 

Iron

thanks for the chat.  

 

Iron

Again, the answer is "it depends".  It depends on what you are trying to control and what you have for sensors.  It will also depend upon how much of the system will be in software and if you want peripherals to do some of the work.  Basically you have to make some tradeoffs about the design and then go looking for a microcontroller that fits.

Iron

Thank you for the nice insight

Iron

what family of embedded microcontroller (32 bit) is appropriate for mechatronics applications?

 

Iron

What would you recommend for a beginner to get started in I2C bus systems?

Iron

  If there aren't solutions in terms of traditional CAD packages, what kind of tools would you use for development of these systems?

Blogger

is there any mechanical platform such as development tools to apply to a microcontroller?

Iron

How accurate for a software interupt based PWM compared with hardware based PWM on a PIC MCU?

what is main advantage of 16 bit over 8 bit , is it faster or can perform more control 

 

Iron

SCADA is Supervisory Control AND Data Acquisition System

Iron

There are no slides for this program. It's a radio program.

Blogger

What about I/O capabilities vs SIO, SCADA

 

Iron

adaptive feedback control system -----mechcatronics

 

Iron

is there any power point with this webinar?

 

Iron

Are there slides that we can download?

Iron

Is there any ppt slides?

Iron

No audio. Has it been started?

Iron

Looking forward to it, Chuck.

Blogger

Hi folks. We'll see you all in six minutes.

Blogger

Hello, this is Keith

 

Iron

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.

Iron

No. 2 pm EST is 12.30 midnight in India

Iron

2pm est is 11.30 pm in india, I cant watch this alive, only the archives because it ismy duty time.

Iron

anybody is there?

 

Iron


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