3 ms·

This reminded me that I've been thinking of playing with a Real-time OS. My impression is that it's possible to run something on an Arduino. Does anyone have an

by lutorm 15y ago

This reminded me that I've been thinking of playing with a Real-time OS. My impression is that it's possible to run something on an Arduino. Does anyone have any experience with this?

sp332 15y ago
It's an 8-bit RISC chip, so it might be a little small. It's more of a micro-controller than a CPU, if you know what I mean.
- wollw 15y ago
  Agreed. Also, it really just is a micro-controller. From what I understand the internal ram and flash plus all the other special functions (SPI, UART, ADC) are what make a micro-controller a micro-controller while a MPU or CPU have data and addressing buses used to talk to external devices. Micro-controllers incorporate a bunch of common functions into them that a CPU or MPU would need to talk to an external device for (while micro-controllers tend to lack said external buses).
- joshu 15y ago
  really? i was under the impression it was a really fast 8051 clone.
  - unwind 15y ago
    The AVR is RISC, it's not a 8051 clone at all. See <http://en.wikipedia.org/wiki/Atmel_AVR> http://en.wikipedia.org/wiki/Atmel_AVR>.
- joshu 15y ago
  really? i was under the impression it was a really fast 8051 clone.
angusgr 15y ago
There are quite a lot of microcontroller RTOSes[1] for the AVR platform, which means you can run them on the Arduino (although you'll need to use avr-gcc not the Arduino IDE for these.) http://www.femtoos.org/ http://www.femtoos.org/ http://www.barello.net/avrx/ http://www.barello.net/avrx/ This one actually looks like it might use the Arduino IDE: http://code.google.com/p/duinos/ http://code.google.com/p/duinos/ (Also: GIYF: 'RTOS AVR' and 'RTOS arduino') [1] The hard part is separating anything that's a serious & maintained project from something someone developed once as a toy/interest project and never used for anything.
splicer 15y ago
I've been writing one with my little brother: https://github.com/splicer/arduin_os https://github.com/splicer/arduin_os It still has a ways to go, but it's able to context-switch between threads. Feel free to fork it if you want to contribute.

by lutorm 15y ago

This reminded me that I've been thinking of playing with a Real-time OS. My impression is that it's possible to run something on an Arduino. Does anyone have any experience with this?

sp332 15y ago

It's an 8-bit RISC chip, so it might be a little small. It's more of a micro-controller than a CPU, if you know what I mean.

wollw 15y ago
Agreed. Also, it really just is a micro-controller. From what I understand the internal ram and flash plus all the other special functions (SPI, UART, ADC) are what make a micro-controller a micro-controller while a MPU or CPU have data and addressing buses used to talk to external devices. Micro-controllers incorporate a bunch of common functions into them that a CPU or MPU would need to talk to an external device for (while micro-controllers tend to lack said external buses).
joshu 15y ago
really? i was under the impression it was a really fast 8051 clone.
- unwind 15y ago
  The AVR is RISC, it's not a 8051 clone at all. See <http://en.wikipedia.org/wiki/Atmel_AVR> http://en.wikipedia.org/wiki/Atmel_AVR>.
joshu 15y ago
really? i was under the impression it was a really fast 8051 clone.

angusgr 15y ago

There are quite a lot of microcontroller RTOSes[1] for the AVR platform, which means you can run them on the Arduino (although you'll need to use avr-gcc not the Arduino IDE for these.) http://www.femtoos.org/ http://www.femtoos.org/ http://www.barello.net/avrx/ http://www.barello.net/avrx/ This one actually looks like it might use the Arduino IDE: http://code.google.com/p/duinos/ http://code.google.com/p/duinos/ (Also: GIYF: 'RTOS AVR' and 'RTOS arduino') [1] The hard part is separating anything that's a serious & maintained project from something someone developed once as a toy/interest project and never used for anything.

splicer 15y ago

I've been writing one with my little brother: https://github.com/splicer/arduin_os https://github.com/splicer/arduin_os It still has a ways to go, but it's able to context-switch between threads. Feel free to fork it if you want to contribute.