/****************************************************************************** * The MIT License * * Copyright (c) 2010 Perry Hung. * * 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 flash.h * @brief STM32 Medium and high density Flash register map and setup * routines */ #include "libmaple_types.h" #ifndef _FLASH_H_ #define _FLASH_H_ #ifdef __cplusplus extern "C"{ #endif /** Flash register map type */ typedef struct flash_reg_map { __io uint32 ACR; /**< Access control register */ __io uint32 KEYR; /**< Key register */ __io uint32 OPTKEYR; /**< OPTKEY register */ __io uint32 SR; /**< Status register */ __io uint32 CR; /**< Control register */ __io uint32 AR; /**< Address register */ __io uint32 OBR; /**< Option byte register */ __io uint32 WRPR; /**< Write protection register */ } flash_reg_map; /** Flash register map base pointer */ #define FLASH_BASE ((struct flash_reg_map*)0x40022000) /* * Register bit definitions */ /* Access control register */ #define FLASH_ACR_PRFTBS_BIT 5 #define FLASH_ACR_PRFTBE_BIT 4 #define FLASH_ACR_HLFCYA_BIT 3 #define FLASH_ACR_PRFTBS BIT(FLASH_ACR_PRFTBS_BIT) #define FLASH_ACR_PRFTBE BIT(FLASH_ACR_PRFTBE_BIT) #define FLASH_ACR_HLFCYA BIT(FLASH_ACR_HLFCYA_BIT) #define FLASH_ACR_LATENCY 0x7 /* Status register */ #define FLASH_SR_EOP_BIT 5 #define FLASH_SR_WRPRTERR_BIT 4 #define FLASH_SR_PGERR_BIT 2 #define FLASH_SR_BSY_BIT 0 #define FLASH_SR_EOP BIT(FLASH_SR_EOP_BIT) #define FLASH_SR_WRPRTERR BIT(FLASH_SR_WRPRTERR_BIT) #define FLASH_SR_PGERR BIT(FLASH_SR_PGERR_BIT) #define FLASH_SR_BSY BIT(FLASH_SR_BSY_BIT) /* Control register */ #define FLASH_CR_EOPIE_BIT 12 #define FLASH_CR_ERRIE_BIT 10 #define FLASH_CR_OPTWRE_BIT 9 #define FLASH_CR_LOCK_BIT 7 #define FLASH_CR_STRT_BIT 6 #define FLASH_CR_OPTER_BIT 5 #define FLASH_CR_OPTPG_BIT 4 #define FLASH_CR_MER_BIT 2 #define FLASH_CR_PER_BIT 1 #define FLASH_CR_PG_BIT 0 #define FLASH_CR_EOPIE BIT(FLASH_CR_EOPIE_BIT) #define FLASH_CR_ERRIE BIT(FLASH_CR_ERRIE_BIT) #define FLASH_CR_OPTWRE BIT(FLASH_CR_OPTWRE_BIT) #define FLASH_CR_LOCK BIT(FLASH_CR_LOCK_BIT) #define FLASH_CR_STRT BIT(FLASH_CR_STRT_BIT) #define FLASH_CR_OPTER BIT(FLASH_CR_OPTER_BIT) #define FLASH_CR_OPTPG BIT(FLASH_CR_OPTPG_BIT) #define FLASH_CR_MER BIT(FLASH_CR_MER_BIT) #define FLASH_CR_PER BIT(FLASH_CR_PER_BIT) #define FLASH_CR_PG BIT(FLASH_CR_PG_BIT) /* Option byte register */ #define FLASH_OBR_nRST_STDBY_BIT 4 #define FLASH_OBR_nRST_STOP_BIT 3 #define FLASH_OBR_WDG_SW_BIT 2 #define FLASH_OBR_RDPRT_BIT 1 #define FLASH_OBR_OPTERR_BIT 0 #define FLASH_OBR_DATA1 (0xFF << 18) #define FLASH_OBR_DATA0 (0xFF << 10) #define FLASH_OBR_USER 0x3FF #define FLASH_OBR_nRST_STDBY BIT(FLASH_OBR_nRST_STDBY_BIT) #define FLASH_OBR_nRST_STOP BIT(FLASH_OBR_nRST_STOP_BIT) #define FLASH_OBR_WDG_SW BIT(FLASH_OBR_WDG_SW_BIT) #define FLASH_OBR_RDPRT BIT(FLASH_OBR_RDPRT_BIT) #define FLASH_OBR_OPTERR BIT(FLASH_OBR_OPTERR_BIT) /* * Setup routines */ #define FLASH_WAIT_STATE_0 0x0 #define FLASH_WAIT_STATE_1 0x1 #define FLASH_WAIT_STATE_2 0x2 void flash_enable_prefetch(void); void flash_set_latency(uint32 wait_states); #ifdef __cplusplus } #endif #endif