How to Use I2C Devices in Apache NuttX: Scanning for Devices

https://www.EmbeddedRelated.com/showarticle/1656.php

by lupyuen • 2 years ago

50 20 2 years ago

rzr• 2 years ago

NuttX worth considering if you're coming from Linux background, I liked it and related community, BTW they have a workshop later this year.

Back to the subject implementing drivers can be a good warmup exercise, you can get inspiration from hints I have shared:

https://rzr.github.io/rzr-presentations/docs/nuttx/

fellerts• 2 years ago

How does it compare to e.g. Zephyr or other RTOSes?

acassis5• 2 years ago

I think the best way to compare is trying NuttX and others RTOSes on some supported board (raspberry pi pico, esp32-devkit, stm32f4discovery etc). As rzr said NuttX is easier for people with Linux background, because it is Linux-like. So the way you mount a MMC/SDCard is the same, the way you search for devices using i2ctool is the same, etc.

snvzz3• 2 years ago

NuttX works great with RISC-V[0].

0. https://nuttx.apache.org/docs/latest/platforms/risc-v/index....

detourdog• 2 years ago

This is what I'm focusing on. I would say nuttX looks great if one is coming from the BSDs. I really want a development platform that is this documented.

acassis5• 2 years ago

Yes! People coming from Unix and Linux feel at home on NuttX! ;-)

the__alchemist• 2 years ago

This is what the ubiquitous (for commercial uses) PX4 flight control firmware uses.

BSDobelix4• 2 years ago

I would really like to have RTEMS on a RPI, however it's most focused board's are "space stuff" like LEON Spark's

snvzz3• 2 years ago

Isn't LEON Spark deprecated in favor of RISC-V based LEON-V / NOEL?

BSDobelix4• 2 years ago

Yeah your right, but i think for the next 15 years LEON 3 and 4 would still be the norm ;)

I just found the dev fpga board of Noel

https://www.gaisler.com/index.php/products/processors/noel-v...

pantalaimon• 2 years ago

Looks like Intel didn't get the memo yet

https://chipsandcheese.com/2024/04/22/intel-meteor-lakes-npu...

acassis5• 2 years ago

True, and NuttX is replacing RTEMS for space exploration as well: https://developer.sony.com/posts/apache-nuttx-powers-worlds-...

BSDobelix4• 2 years ago

True, and NuttX is replacing RTEMS for space exploration as well

Not really....one use-case = replacing? ;(

https://www.rtems.org/node/139

https://rtems-qual.io.esa.int/

How to Use I2C Devices in Apache NuttX: Scanning for Devices

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