ChibiOS Free Embedded RTOS

Hi,

So I'm trying a bunch of GCC versions, with and without LTO, with and without FPU. Latest ChibiOS/RT.

So far the only version that fully works is 4.8, 4.7 used to work without LTO.
I have tried 4.9, 5.2, 5.4, all from ARM.

This is for an STM32F303.

Did anyone have some luck with some of these versions?

Hi,

4.9 is included in ChibiStudio and works, I am working with 5.2 also. All taken from here: https://launchpad.net/gcc-arm-embedded

You need to provide example of things that do not work as expected and specify if it is a self-built compiler.

Giovanni

These are all from ARM as I said, same link as you.

I will make some tests with my F3 discovery board, right now I only tried to compile my project which uses a custom board.

Edit: it seems to work fine on the discovery board with 5.4, FPU and LTO (USB CDC Example)

It would be important to have something reliably not working with specific versions.

Giovanni

Yes,

I was actually caused by the ARM DSP library. I updated it to CMSIS 5 and it works fine now. (https://github.com/ARM-software/CMSIS_5)

I'm using GCC 5.4.