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- /*
- * File : drv_mpu.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2015, RT-Thread Development Team
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Change Logs:
- * Date Author Notes
- * 2015-08-01 xiaonong the first version for stm32f7xx
- */
- #include "drv_mpu.h"
- void mpu_init(void)
- {
- MPU_Region_InitTypeDef MPU_InitStruct;
-
- /* Disable the MPU */
- HAL_MPU_Disable();
- /* Configure the MPU attributes as WT for SRAM */
- MPU_InitStruct.Enable = MPU_REGION_ENABLE;
- MPU_InitStruct.BaseAddress = 0x20010000;
- MPU_InitStruct.Size = MPU_REGION_SIZE_256KB;
- MPU_InitStruct.AccessPermission = MPU_REGION_FULL_ACCESS;
- MPU_InitStruct.IsBufferable = MPU_ACCESS_NOT_BUFFERABLE;
- MPU_InitStruct.IsCacheable = MPU_ACCESS_CACHEABLE;
- MPU_InitStruct.IsShareable = MPU_ACCESS_NOT_SHAREABLE;
- MPU_InitStruct.Number = MPU_REGION_NUMBER0;
- MPU_InitStruct.TypeExtField = MPU_TEX_LEVEL0;
- MPU_InitStruct.SubRegionDisable = 0x00;
- MPU_InitStruct.DisableExec = MPU_INSTRUCTION_ACCESS_ENABLE;
- HAL_MPU_ConfigRegion(&MPU_InitStruct);
- /* Enable the MPU */
- HAL_MPU_Enable(MPU_PRIVILEGED_DEFAULT);
- }
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