ChibiOS Free Embedded RTOS

Just thought that it would be really cool to have an embedded console output via semihisting debugging interface... No mess with USB2UART adapters or USB drivers... And it works only when debugger is attached! No user interference is possible. It is even possible to open files on PC side and write d...

Chibios definetely has some conflict with newlib, since on bare metal semihosting works fine with openocd and st-link/jlink (I was even able to use gprof for profiling an embedded target). I checked both F072 and F407 bare metal targets which worked with minimal modifications.

Have anybody solved this problem with semihosting? I have converted on-board st-link to j-link, added --specs=rdimon.specs to makefile and call initialise_monitor_handles(); on startup. However, printf hangs up and nothing is out on the monitor side.

eMMC works fine with F4 (tested with 16.1.6)
Don't forget to add scratchpad buffer in SDCConfig structure

HID input devices basically do not require any drivers.

faisal wrote:...
Do you remember if the chibios HAL was also adopted, was the difference between them just the kernel? I'm (pleasantly) surprised if just swapping out the scheduler between FreeRTOS and ChibiOS is that dramatic.

AFAIK they used kernel only

Cool! I've seen guys from Taulabs had been migrating from FreeRTOS to ChibiOS due to simillar performance issues Really? Any details on this? I'm very interested. Having looked at both implementations to a extent, my expectation was that FreeRTOS and ChibiOS would be comparable in terms of performa...

Cool! I've seen guys from Taulabs had been migrating from FreeRTOS to ChibiOS due to simillar performance issues

AFAIK, the Ravenscar profile is very similar to your ideas, Giovanni. https://en.wikipedia.org/wiki/Ravenscar_profile The language itself supports many RTOS primitives http://blog.adacore.com/theres-a-mini-rtos-in-my-language They say it can run on Cortex M0. There is an existing Ravanscar runtime f...

I think the industry already has a solution to these woes How about ADA? It is widely used in the US military projects and there is a free GNAT compiler for experiments.