ChibiOS Free Embedded RTOS

How to find the definition of __OBSOLETE_MATH ??? Well, I'll do my own function, because for my purpose the exponent y is always an unsigned int, this makes things simple. I was just wondering if I'm doing basically something wrong for using the FPU... Thanks for having time to have look at my issue...

Indeed, the powf(float x, float y) function is casting the arguments to double :cry: exc.arg1 = (double)x; exc.arg2 = (double)y; What is the aim, to provide a fpow() function for float and cast internally to double? For me this makes no sense... => well its still 4 times faster the pow() function fo...

Yes from my Makefile # Enables the use of FPU (no, softfp, hard). ifeq ($(USE_FPU),) USE_FPU = hard endif # FPU-related options. ifeq ($(USE_FPU_OPT),) USE_FPU_OPT = -mfloat-abi=$(USE_FPU) -mfpu=fpv4-sp-d16 endif # Target settings. MCU = cortex-m4 and of course: # List all user libraries here ULIBS ...

I was expecting that the library already has the option to make use of the fpu. I have no experience with ARM asm reading (list file). There are fpu instrucitons used in the powf-function, but i am curious about the complexity: fresult = powf(fbase,fpower); 8004298: eef0 0a68 vmov.f32 s1, s17 800429...

Hi I try to use the FPU on the STM32L432C but there is no speed improvement when I enable the FPU in the Makefile by: # Enables the use of FPU (no, softfp, hard). ifeq ($(USE_FPU),) USE_FPU = hard endif I'm aware, there is no FPU support for double pow(b,n), but even for float (fpow(b,n), the calcul...

Thank you for providing "ChibiStudio preview 20" http://www.chibios.com/forum/viewtopic.php?f=7&t=2119&p=32789#p32789 But have you planned also to provide a Linux package as well, this would be fantastic! :D While using ChibiOS (18.2.0) and your last ChibiStudio (on Windows and Lin...

@Nico
Create a new workspace folder (e.g. \ChibiStudio\MyWorkspace\) then start Eclipse and select the created folder as new workspace.
This worked fine for me...

Up-to-date and compiled OpenOCD Binaries for Linux, Windows and OSX are available here:
https://github.com/gnu-mcu-eclipse/openocd/releases

You say for Linux there is no ST-Link driver required?

Ok, maybe the St-Link-Server is not necessary t all, maybe there are additional functionality like
redirecting Semihosting to Eclipse-console while debugging? I don't know...

Finally I got everything to work: An uptodate ST-Link-Driver for Linux is available within the AC6-SystemWorkbench package for Linux: http://www.st.com/en/development-tools/sw4stm32.html => After registration, the download of the STM32-SystemWorkbench is free => An installation-Script is located at:...