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/******************************************************************************
* The MIT License
*
* Copyright (c) 2011 LeafLabs, LLC.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*****************************************************************************/
/**
* @file libmaple/stm32f2/flash.h
* @brief STM32F2 Flash header.
*
* Provides register map, base pointer, and register bit definitions
* for the Flash controller on the STM32F2 series, along with
* series-specific configuration values.
*/
#ifndef _LIBMAPLE_STM32F2_FLASH_H_
#define _LIBMAPLE_STM32F2_FLASH_H_
#ifdef __cplusplus
extern "C"{
#endif
#include <libmaple/libmaple.h>
/*
* Register map
*/
/** Flash register map type */
typedef struct flash_reg_map {
__io uint32 ACR; /**< Access control register */
__io uint32 KEYR; /**< Key register */
__io uint32 OPTKEYR; /**< Option key register */
__io uint32 SR; /**< Status register */
__io uint32 CR; /**< Control register */
__io uint32 OPTCR; /**< Option control register */
} flash_reg_map;
/** Flash register map base pointer */
#define FLASH_BASE ((struct flash_reg_map*)0x40023C00)
/*
* Register bit definitions
*/
/* Access control register */
#define FLASH_ACR_DCRST_BIT 12
#define FLASH_ACR_ICRST_BIT 11
#define FLASH_ACR_DCEN_BIT 10
#define FLASH_ACR_ICEN_BIT 9
#define FLASH_ACR_PRFTEN_BIT 8
#define FLASH_ACR_DCRST BIT(FLASH_ACR_DCRST_BIT)
#define FLASH_ACR_ICRST BIT(FLASH_ACR_ICRST_BIT)
#define FLASH_ACR_DCEN BIT(FLASH_ACR_DCEN_BIT)
#define FLASH_ACR_ICEN BIT(FLASH_ACR_ICEN_BIT)
#define FLASH_ACR_PRFTEN BIT(FLASH_ACR_PRFTEN_BIT)
#define FLASH_ACR_LATENCY 0x7
#define FLASH_ACR_LATENCY_0WS 0x0
#define FLASH_ACR_LATENCY_1WS 0x1
#define FLASH_ACR_LATENCY_2WS 0x2
#define FLASH_ACR_LATENCY_3WS 0x3
#define FLASH_ACR_LATENCY_4WS 0x4
#define FLASH_ACR_LATENCY_5WS 0x5
#define FLASH_ACR_LATENCY_6WS 0x6
#define FLASH_ACR_LATENCY_7WS 0x7
/* Key register */
#define FLASH_KEYR_KEY1 0x45670123
#define FLASH_KEYR_KEY2 0xCDEF89AB
/* Option key register */
#define FLASH_OPTKEYR_OPTKEY1 0x08192A3B
#define FLASH_OPTKEYR_OPTKEY2 0x4C5D6E7F
/* Status register */
#define FLASH_SR_BSY_BIT 16
#define FLASH_SR_PGSERR_BIT 7
#define FLASH_SR_PGPERR_BIT 6
#define FLASH_SR_PGAERR_BIT 5
#define FLASH_SR_WRPERR_BIT 4
#define FLASH_SR_OPERR_BIT 1
#define FLASH_SR_EOP_BIT 0
#define FLASH_SR_BSY BIT(FLASH_SR_BSY_BIT)
#define FLASH_SR_PGSERR BIT(FLASH_SR_PGSERR_BIT)
#define FLASH_SR_PGPERR BIT(FLASH_SR_PGPERR_BIT)
#define FLASH_SR_PGAERR BIT(FLASH_SR_PGAERR_BIT)
#define FLASH_SR_WRPERR BIT(FLASH_SR_WRPERR_BIT)
#define FLASH_SR_OPERR BIT(FLASH_SR_OPERR_BIT)
#define FLASH_SR_EOP BIT(FLASH_SR_EOP_BIT)
/* Control register */
#define FLASH_CR_LOCK_BIT 31
#define FLASH_CR_ERRIE_BIT 25
#define FLASH_CR_EOPIE_BIT 24
#define FLASH_CR_STRT_BIT 16
#define FLASH_CR_MER_BIT 2
#define FLASH_CR_SER_BIT 1
#define FLASH_CR_PG_BIT 0
#define FLASH_CR_LOCK BIT(FLASH_CR_LOCK_BIT)
#define FLASH_CR_ERRIE BIT(FLASH_CR_ERRIE_BIT)
#define FLASH_CR_EOPIE BIT(FLASH_CR_EOPIE_BIT)
#define FLASH_CR_STRT BIT(FLASH_CR_STRT_BIT)
#define FLASH_CR_PSIZE (0x3 << 8)
#define FLASH_CR_PSIZE_MUL8 (0x0 << 8)
#define FLASH_CR_PSIZE_MUL16 (0x1 << 8)
#define FLASH_CR_PSIZE_MUL32 (0x2 << 8)
#define FLASH_CR_PSIZE_MUL64 (0x3 << 8)
#define FLASH_CR_SNB (0xF << 3)
#define FLASH_CR_SNB_0 (0x0 << 3)
#define FLASH_CR_SNB_1 (0x1 << 3)
#define FLASH_CR_SNB_2 (0x2 << 3)
#define FLASH_CR_SNB_3 (0x3 << 3)
#define FLASH_CR_SNB_4 (0x4 << 3)
#define FLASH_CR_SNB_5 (0x5 << 3)
#define FLASH_CR_SNB_6 (0x6 << 3)
#define FLASH_CR_SNB_7 (0x7 << 3)
#define FLASH_CR_SNB_8 (0x8 << 3)
#define FLASH_CR_SNB_9 (0x9 << 3)
#define FLASH_CR_SNB_10 (0xA << 3)
#define FLASH_CR_SNB_11 (0xB << 3)
#define FLASH_CR_MER BIT(FLASH_CR_MER_BIT)
#define FLASH_CR_SER BIT(FLASH_CR_SER_BIT)
#define FLASH_CR_PG BIT(FLASH_CR_PG_BIT)
/* Option control register */
#define FLASH_OPTCR_NRST_STDBY_BIT 7
#define FLASH_OPTCR_NRST_STOP_BIT 6
#define FLASH_OPTCR_WDG_SW_BIT 5
#define FLASH_OPTCR_OPTSTRT_BIT 1
#define FLASH_OPTCR_OPTLOCK_BIT 0
#define FLASH_OPTCR_NWRP (0x3FF << 16)
/* Excluded: The many level 1 values */
#define FLASH_OPTCR_RDP (0xFF << 8)
#define FLASH_OPTCR_RDP_LEVEL0 (0xAA << 8)
#define FLASH_OPTCR_RDP_LEVEL2 (0xCC << 8)
#define FLASH_OPTCR_USER (0x7 << 5)
#define FLASH_OPTCR_nRST_STDBY BIT(FLASH_OPTCR_nRST_STDBY_BIT)
#define FLASH_OPTCR_nRST_STOP BIT(FLASH_OPTCR_nRST_STOP_BIT)
#define FLASH_OPTCR_WDG_SW BIT(FLASH_OPTCR_WDG_SW_BIT)
#define FLASH_OPTCR_BOR_LEV (0x3 << 2)
#define FLASH_OPTCR_BOR_LEVEL3 (0x0 << 2)
#define FLASH_OPTCR_BOR_LEVEL2 (0x1 << 2)
#define FLASH_OPTCR_BOR_LEVEL1 (0x2 << 2)
#define FLASH_OPTCR_BOR_OFF (0x3 << 2)
#define FLASH_OPTCR_OPTSTRT BIT(FLASH_OPTCR_OPTSTRT_BIT)
#define FLASH_OPTCR_OPTLOCK BIT(FLASH_OPTCR_OPTLOCK_BIT)
/*
* Series-specific configuration values
*/
/* Note that this value depends on a 2.7V--3.6V supply voltage */
#define FLASH_SAFE_WAIT_STATES FLASH_WAIT_STATE_3
/* Flash memory features available via ACR. */
enum {
FLASH_PREFETCH = 0x100,
FLASH_ICACHE = 0x200,
FLASH_DCACHE = 0x400,
};
#ifdef __cplusplus
}
#endif
#endif
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