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On Multicore for safety yes our latest architectures allow you to isolate failing cores.

For the question on the complexity benefits for Multicore.  There was information from Intel (Fred Pollack) in the late 1990's that showed the theoretical basis for multicore benefits. It became known as Pollack's rule.

This show is now over. The audio portion and this chat will be available as an archive. The archives of all the Design News Radio shows are located here.

Blogger

Do the multicore controllers have the possibility to isolate a core if this is malfunctioning?

Iron

Thanks so much, Ray, for doing the show and answering everyone's questions here.

Blogger

I don't suppose there are any parts good to -55C?

 

Iron

On RTOS, yes you can run different OS's on different cores. need to be caeful on shared resources. Watch for a new announcement from us in the next few eeeks. 

For the Vector OsCan issue, I think the applicable family is MPC56XX (Qorivva I believe)

On interupts, in our implemnentations you get to "steer" the interupts to specific cores so you cna have one type hanlded by one and another by a different core. Very important in Gateway applications.

We do an Auto product line called Qorivva and an Industrial line called the PX family ( Both PowerArchitecture based) We also do multicore Entertainment Products based on ARM. (i.MX6 products)

 

Can you run an RTOS on a core and other OS on the other cores? Are there tools yet for this kind of approach?

Iron

What about interrupts, can the be assigned to a specific core or can they use a free core?

Silver

Is Freescale making multicore controllers dedicated to different application areas (automotive, entertaintment, industrial etc) or there is a general purpose one?

Iron

On Safety: Two ways, either you can run software that lets one core check the other or for Lock-Step you run identical code and compare results. Excelletn way of detecting potential soft errors.

On Vector yes I see your point. Although it works it can't take the benefits. We'll take that comment back to Vector thanks for the input.

how does the multi core enhance safety?

Iron

On assembly code: No difference can be used as required.

 

I guess I better clarify. Vector's OSCan does not yet seem to support dual core Freescale processors. That is you can run the OS on a dual core processor, but the OS only recognized a single processor. To exploit the second processor, you definitely have to setup your own interprocessor communications mechanism

On Books: Unfortunately nothing I can identify for embedded at the moment. Sorry

 

Thanks, I do most with semaphores, so thats not the problem. I graduated 40 years ago, and now I'm on the edge to select a new Controller for my Remote-Home-Conrol system. Multicore would be a preferred choice. Up to now I thought at an ARM.
Can we stay in conact plese after the chat?
ChristophKastl@yahoo.de

Silver

Is there place for assambler code in programming multicore controllers

Iron

Any more thoughts on books/internet sites regarding multicore programming?

Iron

Yes, this Design News Radio show will be available as a archive .

Blogger

on the CAN question: Yes our I/O cores are normally code compatible with the main ones so no real difference.

 

Will this radio transmission be available to be listen again?

Iron

Let me answer Chris's question:

Yes you can run at different speeds in a lot of design. SOmetimes however the communications between the cores gets more complex.

In CAN networking, the OEM generally insist their prefered network os be used. GM LAN, FNOS being examples. Are the developers of these Network OS's supporting the multi cores which Freescale provides?

Welcome to the chat, Ray.

Blogger

Is it possible to run the cores with different speed or ca I enter sleep mode independently?

Silver

Ray will be joining the live chat directly in a couple of minutes.

Blogger

Can multicores be clocked at different frequencies in order to reduce power consumption?

Iron

Does Freescale provide a software framework to the user to quickly adopt your multi-core controllers? More further, is there any industry standard to use multi-core?

Iron

it is possible to run OS like android on this MCU?

 

Iron

Can you recommend some practical Book, internet sites on learning how to program multi core apps.

Iron

What about sharing the resources, memory, i/o, serial I/O, timers, PWM, A/D, D/A ?
Do you already have any papers?

Silver

How is it that multicore reduce heating?  Lower clock frequency yes, but more gates needing to switch should roughly equal the same

 

Iron

Is there a limited to the number of cores possible?

 

Blogger

some especialized tools for debugging-programming to come?

Iron

Could Multicore solve security issues when connecting different bus (CAN, Flexray, MOST) via a gateway??

Iron

Are there already samples available?
What happens if one core runs into an error, can it be reset separately ?

Silver

What about Multicore in Automotive Infotainment systems for multimedia applications, considering future interaction with ADAS systems?

 

Iron

One one speaks of safety one thinks of redundancy in the presence of failures. A single multi-core processor is a single point of failure. No redundancy. Does this imply a need for multiple such processors whe  redundancy is needed?

I have an other application ;-))

Remote-Home-Automation. I need a second core for I/O tasks and maybe a third for connection to the outside world...

Silver

What about enregy consuption-efficiency in multicore MCU?

Iron

If not answered already, exactly how does multicore enhance safety?

 

Iron

What are some of the challenges in terms of designing with multicore controllers?

 

Blogger

it started exactly as a flash-application, so if you're blocking flash, you need to allow it!

 

Silver

The sound is coming through fine.

Blogger

please type in any questions for Ray

Blogger

the audio is LIVE NOW.

 

Blogger

We've had a number of past listeners complain that they can't hear our audio stream, and that the streaming player does not appear at the top of this page when the Radio show begins at 2pm EDT. IF YOUR COMPANY BLOCKS LIVE STREAMING AUDIO -- as a number of companies do -- YOU WILL NOT BE ABLE TO HEAR THE BROADCAST LIVE.  You will have to come back and access it as an archive.

Blogger

IMPORTANT NOTE: We've had a number of past listeners complain that they can't hear our audio stream, and that the streaming player does not appear at the top of this page when the Radio show begins at 2pm EDT. IF YOUR COMPANY BLOCKS LIVE STREAMING AUDIO -- as a number of companies do -- YOU WILL NOT BE ABLE TO HEAR THE BROADCAST LIVE.  You will have to come back and access it as an archive. The archive is posted later today. However, you may want to still stick around for the live chat with our guest; he will dive in at the 2;30 pm EDT mark.

Blogger

Welcome. The audio cast starts in about 75 minutes

Blogger

... and maybe next time you put a short explanation beside it, so everybody will know without having to ask for your "secret"

Silver

Hi, I expect that Button above will thange soon, because until now its only a text without any function ...

Silver

For those of you who've ALREADY REGISTERED but are wondering how to join the chat, LOG IN at the red "You must login to participate in this chat. Please login" line which appears beneath the "add to your calendar" and beneath "DN Radio Live Chat"

Blogger

For those of you who've ALREADY REGISTERED but are wondering how to join the chat, LOG IN at the red "You must login to participate in this chat. Please login" line which appears beneath the "add to your calendar" and beneath "DN Radio Live Chat"

Blogger

Welcome. The audio cast starts in about 75 minutes

Blogger

I registered at about 11:30 MDT, and am promised an email telling me how to participate in 24hrs. This is not helpful

 

Iron

Manishvp, it is NOT over. Hasn't started yet. It will start in about 19 minutes.

Blogger

Is the live broadcast over.?

Is the time correct ? In India its 11.10pm

 

Iron

For those of you who've ALREADY REGISTERED but are wondering how to join the chat, LOG IN at the red "You must login to participate in this chat. Please login" line which appears beneath the "add to your calendar" and beneath "DN Radio Live Chat"

Blogger

IMPORTANT NOTE: We've had a number of past listeners complain that they can't hear our audio stream, and that the streaming player does not appear at the top of this page when the Radio show begins at 2pm EDT. IF YOUR COMPANY BLOCKS LIVE STREAMING AUDIO -- as a number of companies do -- YOU WILL NOT BE ABLE TO HEAR THE BROADCAST LIVE.  You will have to come back and access it as an archive. The archive is posted later today. However, you may want to still stick around for the live chat with our guest; he will dive in at the 2;30 pm EDT mark.

Blogger

Welcome. The audio cast starts in about 75 minutes

Blogger

How can you join after regsitration - no link or information provided?

Iron

How to join after registration

 

Iron


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