Comments on: Knowledge versus Understanding http://embeddedgurus.com/stack-overflow/2006/10/knowledge-versus-understanding/ Thoughts on embedded systems by Nigel Jones Sun, 06 May 2012 10:34:02 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Nigel Jones http://embeddedgurus.com/stack-overflow/2006/10/knowledge-versus-understanding/comment-page-1/#comment-4840 Nigel Jones Thu, 23 Jun 2011 21:29:13 +0000 http://www.gfcdev.org/test-stack/2006/10/11/knowledge-versus-understanding/#comment-4840 Unfortunately I don't know of a suitable book. Your best bet are the training materials offered by Michael Barr: A DVD on priority selection is available on its own via http://netrino.com/rma-dvd/ Or as part of the Embedded Software Training in a Box kit via http://netrino.com/boot-camp-box Unfortunately I don’t know of a suitable book. Your best bet are the training materials offered by Michael Barr:

A DVD on priority selection is available on its own via http://netrino.com/rma-dvd/

Or as part of the Embedded Software Training in a Box kit via http://netrino.com/boot-camp-box

]]> By: anamika http://embeddedgurus.com/stack-overflow/2006/10/knowledge-versus-understanding/comment-page-1/#comment-4837 anamika Thu, 23 Jun 2011 19:21:31 +0000 http://www.gfcdev.org/test-stack/2006/10/11/knowledge-versus-understanding/#comment-4837 Nigel Could you suggest a good book which discusses all the concepts of RTOS that wrote about " priority inversion, can discuss the pros and cons of RMA as a scheduling algorithm, and can explain the implications of making an RTOS call from within an ISR" thanks Nigel Could you suggest a good book which discusses all the concepts of RTOS that wrote about ” priority inversion, can discuss the pros and cons of RMA as a scheduling algorithm, and can explain the implications of making an RTOS call from within an ISR” thanks

]]> By: Nigel Jones http://embeddedgurus.com/stack-overflow/2006/10/knowledge-versus-understanding/comment-page-1/#comment-3206 Nigel Jones Thu, 27 Jan 2011 12:28:27 +0000 http://www.gfcdev.org/test-stack/2006/10/11/knowledge-versus-understanding/#comment-3206 As a regular reader you will probably have noticed that I don't write much about RTOS. I don't because it's a topic that gets discussed to death in a myriad of locations. Anyway to answer your question - yes an RTOS must be deterministic and usually very fast. It does this in part by severely limiting what it does. For a good exposition on this I suggest you read <a href="http://www.amazon.com/Performance-Preemptive-Multitasking-Microprocessors-Microcontrollers/dp/0982337531/ref=sr_1_2?s=books&ie=UTF8&qid=1296131099&sr=1-2" rel="nofollow">Jean Labrosse's book uC/OS-III</a> As to whether it's possible to recompile the Linux kernel. I would say in general no. There are a number of vendors out there that offer real time Linux kernels. Try searching under 'real time linux kernel' and you'll find all you want to know on this topic. As a regular reader you will probably have noticed that I don’t write much about RTOS. I don’t because it’s a topic that gets discussed to death in a myriad of locations. Anyway to answer your question – yes an RTOS must be deterministic and usually very fast. It does this in part by severely limiting what it does. For a good exposition on this I suggest you read Jean Labrosse’s book uC/OS-III As to whether it’s possible to recompile the Linux kernel. I would say in general no. There are a number of vendors out there that offer real time Linux kernels. Try searching under ‘real time linux kernel’ and you’ll find all you want to know on this topic.

]]> By: Amit http://embeddedgurus.com/stack-overflow/2006/10/knowledge-versus-understanding/comment-page-1/#comment-3199 Amit Thu, 27 Jan 2011 03:49:27 +0000 http://www.gfcdev.org/test-stack/2006/10/11/knowledge-versus-understanding/#comment-3199 Hi Nigel, I am frequent visitor of your site, it’s informative and interesting. I mostly work on linux systems. As this topic is about RTOS, can you please explain what the difference between RTOS kernel and General purpose operating systems. I could find that RTOS kernel are predictive and execute the instructions in some max time limit but no where I could find who they do it. Is it possible to recompile our linux kernel with some setting to make it work as RTOS. Thanks. Hi Nigel, I am frequent visitor of your site, it’s informative and interesting.
I mostly work on linux systems. As this topic is about RTOS, can you please explain what the difference between RTOS kernel and General purpose operating systems.
I could find that RTOS kernel are predictive and execute the instructions in some max time limit but no where I could find who they do it.
Is it possible to recompile our linux kernel with some setting to make it work as RTOS.
Thanks.

]]> By: Víctor http://embeddedgurus.com/stack-overflow/2006/10/knowledge-versus-understanding/comment-page-1/#comment-4 Víctor Tue, 13 Oct 2009 16:56:14 +0000 http://www.gfcdev.org/test-stack/2006/10/11/knowledge-versus-understanding/#comment-4 Hello,I'm a newcomer to the engineering world since I ended my electrical engineering studies just a couple years ago and most recently finished my thesis (on Reaktor, making a synth). I'm reading your blog because I found it taking a look around some embedded systems sites, because it's an interesting field and looks like a nice market, since I like home and industry automation (besides microwave applications which is by far my favorite). I agree with you on the side that most headhunters/recruiters look for professionals with a very specific knowledge of "A/B/C SYSTEM" no matter the capacity of the person to actually understand how things work. I want to move from my actual job but I find in frustration that most companies in my field require CCNA/CCNP certifications which in the end say nothing about a persons ability to solve problems. This gets worse when job interviews are taken by external consultants (mostly psichologists or tai-chi/relaxation therapists which are douche-it-alls regarding tech stuff). I still wonder why I take the time to write a resume when all they look for is "software a, certification b, course of d". Hello,I'm a newcomer to the engineering world since I ended my electrical engineering studies just a couple years ago and most recently finished my thesis (on Reaktor, making a synth). I'm reading your blog because I found it taking a look around some embedded systems sites, because it's an interesting field and looks like a nice market, since I like home and industry automation (besides microwave applications which is by far my favorite). I agree with you on the side that most headhunters/recruiters look for professionals with a very specific knowledge of "A/B/C SYSTEM" no matter the capacity of the person to actually understand how things work. I want to move from my actual job but I find in frustration that most companies in my field require CCNA/CCNP certifications which in the end say nothing about a persons ability to solve problems. This gets worse when job interviews are taken by external consultants (mostly psichologists or tai-chi/relaxation therapists which are douche-it-alls regarding tech stuff). I still wonder why I take the time to write a resume when all they look for is "software a, certification b, course of d".

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