Kees Bakker <k...@ijzerbout.nl> wrote:
>> Which board? Are you using a board with an FTDI chip attached to a
>> serial console? Or one with a built-in USB?
> It's a SODAQ board (basically an Arduino Zero compatible board) with a
> SAMD21 that has onchip USB.
So you lose your USB device each time it reboots.
>> There is also the interaction with the flashing process, which
>> sometimes needsd the USB connection. I'd like to convince the minicom
>> and screen guys to do some kind of back-off when the flasher asks.
>> (This is also kinda a call for dual TTY devices that showed up in
>> SunOS 4,AIX,etc. back in the 1990s that let UUCP run well before we
>> had mgetty.)
> Well, minicom is kinda old, from the modem era. The thing I don't like
> about it that it really tries to emulate a terminal. With a
> curses-style popup when the tty device is gone. You can hit enter and
> it reconnects.
Yes, it reconnects. The rest don't.
Either fix the rest to reconnect ...
Getting the USB to enumerate consistently is what bugs me.
It requires a unique ID in the USB, which most of the devices haven't
bothered to provision :-(
> But like I said, if my program hits a watchdog reset, it reboots, and
> my USB connection is gone. In my startup I want to print the reset
> cause to know what was going on.
Sounds like ten lines of python.
> I hate to say it, but it seems on Windows there is a solution (they
> tell me). That, by itself, bothers me too :-)
Windows GUI programs mostly can't pipe stuff.
The ones that can, are usually just using the Linux ABI now.
--
] Never tell me the odds! | ipv6 mesh networks [
] Michael Richardson, Sandelman Software Works | IoT architect [
] m...@sandelman.ca http://www.sandelman.ca/ | ruby on rails [
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