cpu_conf.h

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/*
 * SPDX-FileCopyrightText: 2016 Freie Universität Berlin
 * SPDX-FileCopyrightText: 2016 Inria
 * SPDX-License-Identifier: LGPL-2.1-only
 */
 
#pragma once

 
#include <stdint.h>
#include "cpu_conf_common.h"
 
#if defined(CPU_LINE_STM32MP157Cxx)
#  include "vendor/stm32mp157cxx_cm4.h"
#else
#  include "stm32_irqs.h"
#endif
 
#ifdef __cplusplus
extern "C" {
#endif
 
/* add unused backup RAM as extra heap */
#if !defined(NUM_HEAPS) && CPU_HAS_BACKUP_RAM
#  define NUM_HEAPS   2
#endif

#define CORTEXM_ISB_REQUIRED_AFTER_WFI  1

#define CPU_DEFAULT_IRQ_PRIO            (1U)
/* STM32MP1 family has no flash */
#if !defined(CPU_FAM_STM32MP1)
#  define CPU_FLASH_BASE                FLASH_BASE
#endif
 
/* CPU_IRQ_NUMOF cannot be determined automatically from cmsis header */
#if defined(CPU_MODEL_STM32MP157CAC)
#  define CPU_IRQ_NUMOF                 (150U)
#endif

#if defined(CPU_FAM_STM32U5)
#  define FLASHPAGE_SIZE                (8192U)
#elif defined(CPU_FAM_STM32WB)
#  define FLASHPAGE_SIZE                (4096U)
#elif defined(CPU_FAM_STM32C0)      || defined(CPU_LINE_STM32F030xC) || \
      defined(CPU_LINE_STM32F072xB) || defined(CPU_LINE_STM32F091xC) || \
      defined(CPU_LINE_STM32F103xE) || defined(CPU_FAM_STM32F3)      || \
      defined(CPU_FAM_STM32G0)      || defined(CPU_FAM_STM32G4)      || \
      defined(CPU_FAM_STM32L4)      || defined(CPU_FAM_STM32L5)      || \
      defined(CPU_FAM_STM32WL)
#  define FLASHPAGE_SIZE                (2048U)
#elif defined(CPU_LINE_STM32F030x4) || defined(CPU_LINE_STM32F030x8) || \
      defined(CPU_LINE_STM32F031x6) || defined(CPU_LINE_STM32F042x6) || \
      defined(CPU_LINE_STM32F051x8) || defined(CPU_LINE_STM32F070xB) || \
      defined(CPU_LINE_STM32F103xB)
#  define FLASHPAGE_SIZE                (1024U)
#elif defined(CPU_FAM_STM32L1)
#  define FLASHPAGE_SIZE                (256U)
#elif defined(CPU_FAM_STM32L0)
#  define FLASHPAGE_SIZE                (128U)
#endif
 
#if defined(CPU_FAM_STM32L0) || defined(CPU_FAM_STM32L1)
#  define FLASHPAGE_ERASE_STATE         (0x00U)
#endif
 
#ifdef FLASHPAGE_SIZE
#  define FLASHPAGE_NUMOF               (STM32_FLASHSIZE / FLASHPAGE_SIZE)
#endif
 
#if defined(CPU_FAM_STM32F2) || defined(CPU_FAM_STM32F4) || \
    defined(CPU_FAM_STM32F7)
#  define PERIPH_FLASHPAGE_CUSTOM_PAGESIZES
#  define PERIPH_FLASHPAGE_NEEDS_FLASHPAGE_ADDR

#  if (defined(FLASH_OPTCR_DB1M) && (STM32_FLASHSIZE >= (1024 * 1024)))
#    define FLASHPAGE_DUAL_BANK         1
#  else
#    define FLASHPAGE_DUAL_BANK         0
#  endif
 
/* STM32F7 uses single bank with 32KB to 256KB sectors on a number of devices */
#  if defined(CPU_FAM_STM32F7)
#    if defined(CPU_LINE_STM32F745xx) || defined(CPU_LINE_STM32F746xx) || \
        defined(CPU_LINE_STM32F750xx) || defined(CPU_LINE_STM32F756xx) || \
        defined(CPU_LINE_STM32F765xx) || defined(CPU_LINE_STM32F767xx) || \
        defined(CPU_LINE_STM32F769xx) || defined(CPU_LINE_STM32F777xx) || \
        defined(CPU_LINE_STM32F779xx)
#      define FLASHPAGE_MIN_SECTOR_SIZE (32 * 1024)
#    elif defined(CPU_LINE_STM32F722xx) || defined(CPU_LINE_STM32F723xx) || \
          defined(CPU_LINE_STM32F730xx) || defined(CPU_LINE_STM32F732xx) || \
          defined(CPU_LINE_STM32F733xx)
#      define FLASHPAGE_MIN_SECTOR_SIZE (16 * 1024)
#    else
/* Intentionally error on an unknown line to prevent flashpage errors */
#      error Unknown STM32F7 Line, unable to determine FLASHPAGE_MIN_SECTOR_SIZE
#    endif
 
#  else /* CPU_FAM_STM32F7 */
#    define FLASHPAGE_MIN_SECTOR_SIZE   (16 * 1024)
#  endif
 
#  if FLASHPAGE_DUAL_BANK
/* Number of "large" sectors + 4 for the small sectors that together equal a
 * single large sector. Times two to account for the two banks */
#    define FLASHPAGE_NUMOF             ((STM32_FLASHSIZE / \
                                         (8 * FLASHPAGE_MIN_SECTOR_SIZE)) + 8)
#  else
/* Number of "large" sectors + 4 for the small sectors that together equal a
 * single large sector, eg: 1 MB = 7 * 128 KB sectors + 1 64 KB and 4 16 KB
 * sectors */
#    define FLASHPAGE_NUMOF             ((STM32_FLASHSIZE / \
                                         (8 * FLASHPAGE_MIN_SECTOR_SIZE)) + 4)
#  endif
 
#endif
 
/* The minimum block size which can be written depends on the family.
 * However, the erase block is always FLASHPAGE_SIZE. */
#if defined(CPU_FAM_STM32C0) || defined(CPU_FAM_STM32G0) || \
    defined(CPU_FAM_STM32G4) || defined(CPU_FAM_STM32L4) || \
    defined(CPU_FAM_STM32L5) || defined(CPU_FAM_STM32U5) || \
    defined(CPU_FAM_STM32WB) || defined(CPU_FAM_STM32WL)
#  define FLASHPAGE_WRITE_BLOCK_SIZE          (8U)
typedef uint64_t stm32_flashpage_block_t;
#elif defined(CPU_FAM_STM32F2) || defined(CPU_FAM_STM32F4) || \
      defined(CPU_FAM_STM32F7) || defined(CPU_FAM_STM32L0) || \
      defined(CPU_FAM_STM32L1)
#  define FLASHPAGE_WRITE_BLOCK_SIZE          (4U)
typedef uint32_t stm32_flashpage_block_t;
#else
#  define FLASHPAGE_WRITE_BLOCK_SIZE          (2U)
typedef uint16_t stm32_flashpage_block_t;
#endif
 
#if defined(CPU_FAM_STM32C0) || defined(CPU_FAM_STM32G0) || \
    defined(CPU_FAM_STM32G4) || defined(CPU_FAM_STM32L4) || \
    defined(CPU_FAM_STM32L5) || defined(CPU_FAM_STM32U5) || \
    defined(CPU_FAM_STM32WB) || defined(CPU_FAM_STM32WL)
#  define FLASHPAGE_WRITE_BLOCK_ALIGNMENT     (8U)
#else
/* Writing should be always 4 bytes aligned */
#  define FLASHPAGE_WRITE_BLOCK_ALIGNMENT     (4U)
#endif

#ifdef SRAM_BB_BASE
#  define CPU_HAS_BITBAND 1
#endif
 
#ifdef __cplusplus
}
#endif