Haven't used a Teensy (because the STM32 chips were a better fit for my=20
intended production use, so I chose to invest my time towards learning=20
that).
For my Arduino simplicity but with higher power, I just use Chipkit, as=20
I occasionally have to go straight to the chip's registers even in=20
Arduino mode and know the PIC32 decently already.

However, the newer Arduino IDE versions and the Teensy add-on to the=20
Arduino IDE allows you to export the hex file.  And with Arduinos you=20
can flash the code directly to the chip and bypass the bootloader, so=20
perhaps that may work on the Teensy also.  But you'll need a flash=20
programmer for the Freescale chip though (JTAG, SWD, etc... whatever=20
works with the Freescale chips).

http://www.open-electronics.org/arduino-isp-in-system-programming-and-stand=
-alone-circuits/

Cheers,
-Neil.



On 6/4/2016 7:07 PM, Josh Koffman wrote:
> Hi all,
>
> Recently a friend convinced me to try out the Teensy development board
> on a project. For those who don't know, it's a ARM Cortex M4 based
> development board that runs at 72MHz. Programming is done directly
> from a computer via USB on board bootloader). It's a very capable
> platform, and was surprisingly easy to get in to. More info available
> here: http://pjrc.com/teensy/index.html
>
> One of the reasons it is so accessible (besides low cost) is that the
> gent who created it, Paul, maintains a large list of compatible
> library code on his site, and for the last few versions he's made a
> plugin for the Arduino environment as well, opening up even more
> libraries for exploration.
>
> The project I was working on was fairly simple but I was having
> trouble getting the speed out of a PIC. The Teensy had a nice
> combination of processor speed and enough on board peripherals that I
> needed, so it was a decent fit. The cost of the board (roughly $20)
> means that using it for higher quantities might not be the most
> economical option. Indeed, Paul even talks about that on his forum and
> suggests that for higher volumes he might not be the best choice. What
> he does sell is his bootloader on an M0 chip that you can use on your
> own board if you desire. That still seems like overkill to me though,
> since in a higher volume situation I wouldn't really need a bootloader
> on each board, I could use an external program.
>
> So my question is this. Given that I liked developing on the Teensy
> itself, are there ways to move from the C code written in the Arduino
> app to something that could be used (via a programmer) without the
> bootloader chip?
>
> I do plan on asking this on his forum as well, but I'm looking for a
> viewpoint of people who aren't tied as tightly to this specific
> hardware. I don't want it to seem like I am proposing to cut Paul's
> contribution out of my work flow, I'm just curious how one moves
> beyond being tied to modules and software designed for flexibility and
> easy of use and on to more robust solutions designed for higher
> volumes and customization. For me, cost is part of it, but also being
> able to access certain pins on the chip that are tricky to get at on
> the module are something I'm wondering about as well.
>
> Thank you!
>
> Josh

--=20
http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.