Zephyr project on STM32

Zephyr Workbench, a VSCode extension to manage Zephyr on STM32.
It enables users to easily create, develop, and debug Zephyr applications.
Main features:

Install host dependencies.
Import toolchain and SDK.
Create, configure, build and manage apps.
Debug STM32.

You can directly download it from the VSCode marketplace
For more details, visit the Zephyr Workbench

System Workbench for STM32

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Timer Interrupt crashes after changing to c++

Posted by styro on 2017-10-22 03:01

Hello
i am building an application on a stm32f769-Disco with stemwin without os
momentary very simple, just writes the screen and the TIM2 is generating
a interrupt with ca 30 Hz and toggles on D6. sofar so good...
now i rightclick the project, choose convert to c++, clean and rebuild
the application still starts and works but as soon i start the TIM2 Interrupt:
if (HAL_TIM_Base_Start_IT(&TimMasterHandle) != HAL_OK) {
it crashes instanly.....
where does “change to c++” change the configuration?
thanks for any help!
all the best
styro

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Posted by dautrevaux on 2017-10-22 16:29 France

Hi,

One possible cause is that, if your interrupt handler is in a C++ source file, the Interrupt handler must be a C linkage functions. In C++ you must then prepend extern "C" to the function declaration and definition, otherwise the function name will be decorated by the C++ compiler to become something like TIM1_IRQHandler_v instead of TIM1_IrqHandler, thus the linker will pick the default handler which just loops indefinitely...

Bernard (Ac6)

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Posted by styro on 2017-10-23 08:09

Yeah Thanks, that was it!

all the best
styro

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Timer Interrupt crashes after changing to c++

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