ChibiOS has been used for Arduino RTOS. Never used it, never needed it, but I
have read about it.
John Vaughters
greiman/ChibiOS-Arduino
|
|
|
| | |
|
|
|
| |
greiman/ChibiOS-Arduino
ChibiOS/RT 3.0.3 for Arduino AVR, Due, and Teensy 3.x - greiman/ChibiOS-Arduino
|
|
|
On Friday, January 24, 2020, 7:44:20 AM EST, Mike Lisanke via TriEmbed
<[email protected]> wrote:
It's been my understanding that Arduino is single threaded (except for their
own interrupt handling) and that single use resources could be handled in your
user code (the main loop) anywhere without conflict (multi-use) because you
would naturally structure the code to use a resource (and clean up) then use
the resource again... If you're doing your own threading model then it would
benefit us to understand What you've implemented to split your tasks among many
cycles of the main loop. I just googled and it doesn't appear that Arduino has
a multi-tasking component of its loop But of course there are many open source
extensions to the basis setup.
Are you primarily concerned with common use of the I2C bus? Is you "mutex" just
a bit/byte/word of memory that you're in a stream to an external device and
need to complete it? Or, does mutex imply you have a supervisor interpreting
the availability of a resource and selecting whether or not to "dispatch" a
thread (section of code) to execute based on the resource availability?
On Thu, Jan 23, 2020 at 5:51 PM Alex via TriEmbed <[email protected]> wrote:
I’m working on a time and weather forecast clock based on an ESP32 and a 20x4
HD44800 LCD connected via an I2C port expander thing. I’m ‘cheating’ at the
moment by splitting the display update code and the weather-fetch code into two
tasks and pinning them to separate cores.
I think the right way to do this is to protect the LCD at the character-sending
level with a mutex, but I dread what I may find in terms of how they have
overloaded the usual Arduino print and println functions. I should probably
also replace my global ‘locking’ access to the network with a mutex, since NTP
and the weather updates could clash.
Anyone already do something similar to this who would like to share code?
Thanks,
Alex
_______________________________________________
Triangle, NC Embedded Computing mailing list
To post message: [email protected]
List info: http://mail.triembed.org/mailman/listinfo/triembed_triembed.org
TriEmbed web site: http://TriEmbed.org
To unsubscribe, click link and send a blank message:
mailto:[email protected]?subject=unsubscribe
--
Best regards, Mike_______________________________________________
Triangle, NC Embedded Computing mailing list
To post message: [email protected]
List info: http://mail.triembed.org/mailman/listinfo/triembed_triembed.org
TriEmbed web site: http://TriEmbed.org
To unsubscribe, click link and send a blank message:
mailto:[email protected]?subject=unsubscribe
_______________________________________________
Triangle, NC Embedded Computing mailing list
To post message: [email protected]
List info: http://mail.triembed.org/mailman/listinfo/triembed_triembed.org
TriEmbed web site: http://TriEmbed.org
To unsubscribe, click link and send a blank message:
mailto:[email protected]?subject=unsubscribe
