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SW4STM32 and SW4Linux fully supports the STM32MP1 asymmetric multicore Cortex/A7+M4 MPUs

   With System Workbench for Linux, Embedded Linux on the STM32MP1 family of MPUs from ST was never as simple to build and maintain, even for newcomers in the Linux world. And, if you install System Workbench for Linux in System Workbench for STM32 you can seamlessly develop and debug asymmetric applications running partly on Linux, partly on the Cortex-M4.
You can get more information from the ac6-tools website and download (registration required) various documents highlighting:

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

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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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