[time-nuts] Good (cheap) PIC chip choice for project?

Bob Bownes bownes at gmail.com
Sat May 25 21:14:36 EDT 2013


I suspect Linux based systems are a few sigma away from the original goal of a cheap pic choice...:)

But to get back to the original point, you can get samples of most of the PIC chips from MicroChip for free. I think the limit is 3 per week. Or 30 days, I don't remember.

Bob

On May 25, 2013, at 20:36, Bob Camp <lists at rtty.us> wrote:

> Hi
> 
> If you want Linux, you probably also want something like an A9 or better. The M0 and even the M4's MCU's are not really targeted at Linux. Can you pack it into a big M4 - sure, it'll be a tight fit and you may not have everything you really wanted to have. Oddly enough some of the M4's have better native ethernet than some of their "big brothers". Weird….
> 
> Bob
> 
> On May 25, 2013, at 8:12 PM, lists at lazygranch.com wrote:
> 
>> If you go arm cortex and linux, you will need to make your code a "service." You will want it to start up by itself and if for some reason it crashes, you will want it to restart itself. The buzzword is "harden" and the techniques vary depending on the distribution.
>> 
>> You should check the architecture of the system. I didn't realize many of these boards run the ethernet off the usb hub. My recollection is the a10 used by Allwinner does not do that.
>> 
>> Opensuse has JEOS, which stands for Just Enough OS. Less is more!
>> 
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