STM32F2xx support in Chibios 3.0.2

[dismirlian]

Hi all,

I'm trying to test Chibios 3.0.2 with a STM32F2 board I have. Browsing the sources, it seems that STM32F2xx support is missing, am I right?

What would be the minimal changes necessary to add F2 support (maybe only for the device I'm using - STM32F207VC), considering that Chibios 2.6 already had support for this MCU?

Thank you!

Regards,
Diego.

[Giovanni]

Hi,

There is support for F2, it is handled as a special case of the F4 but there are no demos. In board.h you need to specify STM32F2XX as device, everything else is equal.

Giovanni

[dismirlian]

Hi Giovanni, thanks for your answer.

I can't get to compile a basic F2 example. I specified STM32F2XX in board.h, but it doesn't work. I see there are missing bits, for example in the stm32_registry.h. Also, I can't find the stm32f2xx.h CMSIS header (the stm32f4xx.h is included when I compile for the F4), nor the linker scripts for the F2 family.

Maybe I'm missing some #define somewhere... Or should I specify the F407 if I'm using the F207?

I attach the ultra-basic project, for you to check it out (if you have some time).

Thanks again!
Diego.

[Giovanni]

hi,

Apparently some files required for the F2 are missing in 3.0.x, I will add again the support in 3.0.3.

In the meanwhile you could try to use it like an F407 taking care to setup the clock at 120MHz max.

Giovanni

[Giovanni]

Hi again,

I committed the files required for STM32F2 support in the repository but probably I will not merge them with 3.0.x (I cannot test it
), the support will be released in 3.1.x for sure.

Giovanni

[dismirlian]

Hi Giovanni,

Thanks for your quick answer! I'll check the repository, and if I can't get it to work, I'll try using the F407.

Thanks!!
Diego.