Write to flash memory with Trustzone actrive in STM32L5

[simoBen47]

Hey evryone,

I can't write to memory flash when TZEN = 1 (e.g trustzone is active) , i hav no error return !

I call this fucntions from secure side :

 HAL_FLASH_Unlock();
 
 HAL_FLASH_Program(FLASH_TYPEPROGRAM_DOUBLEWORD, FlashAddr, FlashData);
 
 HAL_FLASH_Lock();

Thank you for your help guys

[Tilen MAJERLE]

Before you can write (or program) flash, you will need to erase it.