There are a wide variety of J-Link options. Almost every professional
engineer I know has a commercial J-Link on their desk (it's still the
gold standard for speed and convenience) -- I have four, to my shame --
but if you're a tinkerer I think it's amazing that Segger gives people a
legal $20 option now.
OpenOCD and the STLink/V2 or bit-banging SWD from a RPi3 also work, but
there is a reasonable amount of pain involved in keeping that up to date
and we've had reliability issues with that combo in production (even
with flash verification turned on). Your mileage varies, of course, but
for us ... we prefer to just put the SWD connector on their and ship
with a serial bootloader, and people can decide what's appropriate for
themselves based on their available time or financial resources.
K.
On 16/08/17 00:10, Pierre Kircher wrote:
thats where it stops the edu version of j-link is not suiteable if you want to
build a commercial product .. for home tinkerers ofc .. there are other jtag
programmers .. like black magic probe ( opensource jtag debug / programming
probe) / st link v2 suitable doing that
there is a bug in gdb for makeing it work easily with say a flashed stlink v2
with bmp firmware .. but you can still write them as single image ..
that would be a cheap production option …
On 15 Aug 2017, at 23:04, Kevin Townsend <[email protected]> wrote:
It doesn't have an on-board J-Link, but that's why it's relatively inexpensive,
and you can purchase $20 J-Link EDUs now if you qualify for those license
terms: https://www.adafruit.com/product/3571
The more expensive options out there have a J-Link on board (nRF52DK board from
Nordic), but I think having an inexpensive board and ONE J-Link plus on board
LIPO battery charging makes more sense for multiple devices, and the physical
size is more useful in the real world, along with easy access to a number of
add-on HW: https://www.adafruit.com/Feather
But sorry, I **REALLY** don't want to promote the Adafruit board on the dev
list! I just wanted to give a simple heads up that after a lot of delay, it's
finally in production, and we'll release the iOS app (and source code) shortly,
which is potentially useful to other people on this dev list.
Our main ambition is getting this in the shop was just to help out on a project
we believe solves some real problems elegantly (fully open source BLE stack,
etc.), and offers people a stepping stone towards a commercial friendly open
source development platform.
Kevin
On 15/08/17 23:55, Brian Giori wrote:
Wow! This really has everything, and for $28 it's a steal. I'll be picking
one up when they go on sale. Great job!
On Tue, Aug 15, 2017 at 2:52 PM, Kevin Townsend <[email protected]>
wrote:
