Atmel Bought by Microchip

Started by rickman in comp.arch.embedded29 minutes ago 83 replies

Not sure how I missed this one for two months. I see there is already some serious contention with Atmel...

Not sure how I missed this one for two months. I see there is already some serious contention with Atmel employees. http://www.eetimes.com/document.asp?doc_id=1329412 I wonder what it will be like for the sales force to be selling PICs, AVRs and ARMs all into much of the same market space? I wonder if the PIC32 will finally bite the dust with ARMs all around it crowding it out of t...


ARM about to be sold

Started by Simon Clubley in comp.arch.embedded2 days ago 29 replies
ARM

ARM is about to be sold to a Japanese company: http://www.bbc.co.uk/news/business-36822806 As a Brit, it saddens me to see a British success...

ARM is about to be sold to a Japanese company: http://www.bbc.co.uk/news/business-36822806 As a Brit, it saddens me to see a British success story sold into foreign hands, but my real concern is about what the future might bring several years down the road. Questions currently going through my mind include whether ARM will still be able to perform R&D at their current rate and whether ...


USB Embedded Master: requirement on power supply?

Started by pozz in comp.arch.embedded2 days ago 3 replies

I'm going to design a board with an embedded USB Host connector (managed by Atmel SAM D21 MCU). I will use that connection only for data...

I'm going to design a board with an embedded USB Host connector (managed by Atmel SAM D21 MCU). I will use that connection only for data communication with a smartphone or a pendrive. I don't need to recharge the battery of the smartphone. Of course, I need to supply the pendrive. On my board I have to generate a +5V rail only for the USB, but I don't know what is its requirement. Co...


Common name for a "Task Loop"

Started by Tim Wescott in comp.arch.embedded3 days ago 194 replies

So, this is the third time in a month or so that I've needed to tell someone "use a task loop" -- but I'm not sure if I can say "just Google...

So, this is the third time in a month or so that I've needed to tell someone "use a task loop" -- but I'm not sure if I can say "just Google it". So: When I say "task loop" I mean that I'm _not_ using an RTOS, but rather that I'm doing some small thing in a small processor, and somewhere in my code there's a loop that goes: for (;;) { if (task_1_ready) { task_1_...


Safety-Critical Software Design

Started by Randy Yates in comp.arch.embedded4 days ago 11 replies

Hi Everyone, Are there any formal requirements, guidelines, or recommendations for software which will run in a safety-critical environment in...

Hi Everyone, Are there any formal requirements, guidelines, or recommendations for software which will run in a safety-critical environment in the United States or world-wide? By a "safety-critical" environment I mean an environment in which a failure can lead to loss of, or serious injury to, human life. For example, automobile navigation systems, medical devices, lasers, etc. I know...


Labview vs. C++

Started by Tim Wescott in comp.arch.embedded4 days ago 17 replies

OK. Neither of the groups to which I'm cross-posting this are appropriate. But, y'all are smart, and I know who to listen to. Problem:...

OK. Neither of the groups to which I'm cross-posting this are appropriate. But, y'all are smart, and I know who to listen to. Problem: I'm working on a proposal for a customer, for an app that's going to require heavy computation and is more or less real time*. The guy I'll be working with the closest is pretty much a 100% LabView programmer -- he just doesn't _do_ C, or C++, or Fo...


Unintentionally Decoupled "process" interactions [long]

Started by Don Y in comp.arch.embedded5 days ago 9 replies

[Apologies to folks who end up seeing this in multiple places: USENET, forums, mailing lists and personal email. Similarly, apologies to folks...

[Apologies to folks who end up seeing this in multiple places: USENET, forums, mailing lists and personal email. Similarly, apologies to folks only seeing it in *one* such place and, possibly, missing out on comments introduced in other venues. And, apologies if the technology may be unfamiliar to some. I'm in a rush to get this sorted out so I can get back to "real" work... including yet...


RS485 guard-time

Started by pozz in comp.arch.embedded2 weeks ago 6 replies

I just noticed a nice feature of SAM C2x microcontrollers from Atmel. It is the RS485 support, i.e. one pin (TE) goes high when the UART is...

I just noticed a nice feature of SAM C2x microcontrollers from Atmel. It is the RS485 support, i.e. one pin (TE) goes high when the UART is transmitting and goes immediately low when the last byte was really shifted out, including stop bits. There is an additional feature that Atmel named "guard time". " For RS485 mode, the guard time is programmable from 0-7 bit times and defines t...


Webinar: Creating IoT applications with Toradex and Microsoft Azure

Started by Sunil Kumar in comp.arch.embedded2 weeks ago

Join our next joint webinar with Microsoft ‬(in Portuguese). We will present a technical demonstration of the development of a robust and...

Join our next joint webinar with Microsoft ‬(in Portuguese). We will present a technical demonstration of the development of a robust and scalable IoT‬ solution. The Toradex‬ system on modules enable the development of embedded platforms that meet the most common requirements for IoT such as low power consumption, long life, compact form factor, 24/7 operatio


dsPIC serial number

Started by Syd Rumpo in comp.arch.embedded2 weeks ago 15 replies

Hi I want to put a serial number into a dsPIC - there's four bytes of user space in the flash which would be ideal. Is there any...

Hi I want to put a serial number into a dsPIC - there's four bytes of user space in the flash which would be ideal. Is there any reasonably easy way of stopping this from being changed when new software is programmed using a PicKit programmer? I know I could read it and re-write it, but I want something which moderately tech-savvy customers can do. Cheers -- Syd


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