/* * This file is part of the libopencm3 project. * * Copyright (C) 2010 Thomas Otto * Copyright (C) 2010 Mark Butler * * This library is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This library 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 Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this library. If not, see . */ /* * For details see: * PM0075 programming manual: STM32F10xxx Flash programming * August 2010, Doc ID 17863 Rev 1 * http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/PROGRAMMING_MANUAL/CD00283419.pdf */ #ifndef LIBOPENCM3_FLASH_H #define LIBOPENCM3_FLASH_H #include #include /* --- FLASH registers ----------------------------------------------------- */ #define FLASH_ACR MMIO32(FLASH_MEM_INTERFACE_BASE + 0x00) #define FLASH_KEYR MMIO32(FLASH_MEM_INTERFACE_BASE + 0x04) #define FLASH_OPTKEYR MMIO32(FLASH_MEM_INTERFACE_BASE + 0x08) #define FLASH_SR MMIO32(FLASH_MEM_INTERFACE_BASE + 0x0C) #define FLASH_CR MMIO32(FLASH_MEM_INTERFACE_BASE + 0x10) #define FLASH_AR MMIO32(FLASH_MEM_INTERFACE_BASE + 0x14) #define FLASH_OBR MMIO32(FLASH_MEM_INTERFACE_BASE + 0x1C) #define FLASH_WRPR MMIO32(FLASH_MEM_INTERFACE_BASE + 0x20) /* --- FLASH_ACR values ---------------------------------------------------- */ #define FLASH_PRFTBS (1 << 5) #define FLASH_PRFTBE (1 << 4) #define FLASH_HLFCYA (1 << 3) #define FLASH_LATENCY_0WS 0x00 #define FLASH_LATENCY_1WS 0x01 #define FLASH_LATENCY_2WS 0x02 /* --- FLASH_SR values ----------------------------------------------------- */ #define FLASH_EOP (1 << 5) #define FLASH_WRPRTERR (1 << 4) #define FLASH_PGERR (1 << 2) #define FLASH_BSY (1 << 0) /* --- FLASH_CR values ----------------------------------------------------- */ #define FLASH_EOPIE (1 << 12) #define FLASH_ERRIE (1 << 10) #define FLASH_OPTWRE (1 << 9) #define FLASH_LOCK (1 << 7) #define FLASH_STRT (1 << 6) #define FLASH_OPTER (1 << 5) #define FLASH_OPTPG (1 << 4) #define FLASH_MER (1 << 2) #define FLASH_PER (1 << 1) #define FLASH_PG (1 << 0) /* --- FLASH_OBR values ---------------------------------------------------- */ /* FLASH_OBR[25:18]: Data1 */ /* FLASH_OBR[17:10]: Data0 */ #define FLASH_NRST_STDBY (1 << 4) #define FLASH_NRST_STOP (1 << 3) #define FLASH_WDG_SW (1 << 2) #define FLASH_RDPRT (1 << 1) #define FLASH_OPTERR (1 << 0) /* --- FLASH Keys -----------------------------------------------------------*/ #define RDP_KEY ((u16)0x00a5) #define FLASH_KEY1 ((u32)0x45670123) #define FLASH_KEY2 ((u32)0xcdef89ab) /* --- Function prototypes ------------------------------------------------- */ BEGIN_DECLS void flash_prefetch_buffer_enable(void); void flash_prefetch_buffer_disable(void); void flash_halfcycle_enable(void); void flash_halfcycle_disable(void); void flash_set_ws(u32 ws); void flash_unlock(void); void flash_lock(void); void flash_clear_pgerr_flag(void); void flash_clear_eop_flag(void); void flash_clear_wrprterr_flag(void); void flash_clear_bsy_flag(void); void flash_clear_status_flags(void); void flash_unlock_option_bytes(void); void flash_erase_all_pages(void); void flash_erase_page(u32 page_address); void flash_program_word(u32 address, u32 data); void flash_program_half_word(u32 address, u16 data); void flash_wait_for_last_operation(void); void flash_erase_option_bytes(void); void flash_program_option_bytes(u32 address, u16 data); END_DECLS #endif