stm32cube-mcu-package

Describe the set-up

/**
  * @brief  HELPER macro calculating the prescaler value to achieve the required counter clock frequency.
  * @note ex: @ref __LL_TIM_CALC_PSC (80000000, 1000000);
  * @param  __TIMCLK__ timer input clock frequency (in Hz)
  * @param  __CNTCLK__ counter clock frequency (in Hz)
  * @retval Prescaler value  (between Min_Data=0 and Max_Data=65535)
  */
#define

HAL_MPU_ConfigRegion() is missing barrier instructions. (STM32CubeL0/Drivers/STM32L0xx_HAL_Driver/Src/stm32l0xx_hal_cortex.c)

The companion function, void HAL_MPU_Enable(uint32_t MPU_Control) Includes barrier instructions.

Per Arm Cortex-M0+ DevicesGeneric User Guide ( DUI0662B_cortex_m0p_r0p1_dgug.pdf), Section 4.5.8:

Software must use memory barrier instructions:

• Before MP