ChibiOS Free Embedded RTOS

Hi, chprintf() does not print special float values (i.e. INF, NAN) appropriately, yet. I have already created a patch that introduces this feature. The patch is based on a slightly outdated revision of the stable_20.x branch, but I do not expect any conflicts. Btw, is there any chance to get 64 bit ...

Could you confirm that this fixes your issue? Confirmed =) I have two notes to make, though: ⋅  In extiEnableGroup2() you also use STM32_EXTI_IMR1_MASK for masking the argument (should be STM32_EXTI_IMR2_MASK). ⋅  The commit message says the fix has been backported to branch 20....

When I enable RTC on my NUCLEO-G071RB board, ChibiOS won't start due to a failed assertion during HAL initialization. This issue can easily be reproduced for the RT-STM32G07RB-NUCLEO64 demo. DETAILS To enable RTC, I enabled the flag in halconf.h and set STM32_RTCSEL to STM32_RTCSEL_LSI in mcuconf.h....

I ran some brief tests using the latest commit of the stable_20.3.x branch on a NUCLEO-F401RE, a NUDLEO-L476RG and a custom board (F405RG) and everything seems to be okay. The implementations, however, are not equivalent: ⋅  _exit() calls abort() (abnormal program termination) now, whereas...

syscalls_cpp.cpp was needed for C++ builds, obviously. It should be fine to implement all stubs in syscalls.c since the footprint for the unused functions in C builds is minimal and even zero if LTO is enabled. Maybe the preprocessor can be used to filter not required stubs (#ifdef __cplusplus), but...

Commit 13804 (https://osdn.net/projects/chibios/scm/svn/commits/13804) introduced some functions in syscalls.c, which are already present in syscalls_cpp.cpp. As a result, building any project which requires both files to be built will no longer compile. In case this is actually no bug, I am curious...

Just put some more thought in the topic and realized that my solution could be enhanced to some kind of "almost tickless" mode, allowing for timers and timeouts of arbitrary duration. First off, the accumulation ISR actually is a periodic tick. Now, whenever a timer is set or a timeout was...

I implemented the feature some time ago in my project. Just have a look at the _systimer in my code (https://opensource.cit-ec.de/projects/amiro-os/repository/revisions/master/entry/core/src/aos_system.c). The idea is quite simple. That virtual timer fires periodically, accumulates the _uptime value...

I submitted a patch some time ago for the STM32 I2Cv1 LLD: http://www.chibios.com/forum/viewtopic.php?f=38&t=4339 A more recent version compatible with ChibiOS 19.1 can be found in my project: https://opensource.cit-ec.de/projects/amiro-os/repository/changes/kernel/patches/I2C-without-DMA.patch?...

I just encountered an issue with the chThdWait() function when I enable the registry module. As a disclaimer, I am not quite sure whether this is actually a bug or intended behaviour. The scenario that causes my issue is quite simple: Thread A terminates thread B by calling chThdTerminate(&B) an...