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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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How to use HAL_FLASH_Program_IT ?

Posted by remmy on 2016-08-25 17:21

How to use HAL_FLASH_Program_IT ?

I got HAL_FLASHEx_Erase() and HAL_FLASH_Program() working OK
But it is blocking code and want to avoid using it.

When I try HAL_FLASHEx_Erase_IT() the return value seems to say everything went OK,
but when I do HAL_FLASH_Program_IT() it return value suggest its busy and does not write anything.
Even if I put 100ms delays between erase and program, its still busy.

Seems like some interrupt not enabled - but not sure which interrupt needs
enabling as it escapes documentation time and time again in all the various
available documentation and forums. eek

Reads: 16944
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Posted by jimfred on 2017-08-09 21:41

Make sure the NVIC is configured for flash interrupts. If using CubeMX, enable NVIC Flash intterupt and expect CubeMX to generate FLASH_IRQHandler() that calls HAL_FLASH_IRQHandler() in the xxx_it.c file. A breakpoint can be used to ensure that FLASH_IRQHandler() or HAL_FLASH_IRQHandler() are bing called.

You can define a HAL_FLASH_EndOfOperationCallback to perform some operation upon completion. Or, you can look at pFlash.ProcedureOnGoing == FLASH_PROC_NONE to know the operation is complete.

Note that if the purpose of using HAL_FLASH_Program_IT is to erase flash asynchronously while running from flash, it will not work as expected. Expect execution from flash to freeze while an erase is in-progress which effectively means HAL_FLASH_Program_IT() will block until complete. If you’re executing from RAM, this blocking won’t occur.

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