RTEMS: bsps/arm/stm32f4/include/bsp/stm32f4xxxx_flash.h Source File

| RTEMS 5.4-rc2

Loading...
Searching...
No Matches
stm32f4xxxx_flash.h
1/*
2 * Copyright (c) 2013 Chris Nott. All rights reserved.
3 *
4 * Virtual Logic
5 * 21-25 King St.
6 * Rockdale NSW 2216
7 * Australia
8 * <rtems@vl.com.au>
9 *
10 * The license and distribution terms for this file may be
11 * found in the file LICENSE in this distribution or at
12 * http://www.rtems.org/license/LICENSE.
13 */
14
15#ifndef LIBBSP_ARM_STM32F4_STM32F4XXXX_FLASH_H
16#define LIBBSP_ARM_STM32F4_STM32F4XXXX_FLASH_H
17
18#include <bsp/utility.h>
19
20 struct stm32f4_flash_s {
21
22 uint32_t acr; // Access and control register
23#define STM32F4_FLASH_ACR_DCRST BSP_BIT32(12) // Data cache reset
24#define STM32F4_FLASH_ACR_ICRST BSP_BIT32(11) // Instruction cache reset
25#define STM32F4_FLASH_ACR_DCEN BSP_BIT32(10) // Data cache enable
26#define STM32F4_FLASH_ACR_ICEN BSP_BIT32(9) // Instruction cache enable
27#define STM32F4_FLASH_ACR_PRFTEN BSP_BIT32(8) // Prefetch enable
28#define STM32F4_FLASH_ACR_LATENCY(val) BSP_FLD32(val, 0, 2) // Flash access latency
29#define STM32F4_FLASH_ACR_LATENCY_GET(reg) BSP_FLD32GET(reg, 0, 2)
30#define STM32F4_FLASH_ACR_LATENCY_SET(reg, val) BSP_FLD32SET(reg, val, 0, 2)
31
32 uint32_t keyr; // Key register
33#define STM32F4_FLASH_KEYR_KEY1 0x45670123
34#define STM32F4_FLASH_KEYR_KEY2 0xCDEF89AB
35
36 uint32_t optkeyr; // Option key register
37#define STM32F4_FLASH_OPTKEYR_OPTKEY1 0x08192A3B
38#define STM32F4_FLASH_OPTKEYR_OPTKEY2 0x4C5D6E7F
39
40 uint32_t sr; // Status register
41#define STM32F4_FLASH_SR_BSY BSP_BIT32(16) // Busy
42#define STM32F4_FLASH_SR_PGSERR BSP_BIT32(7) // Programming sequence error
43#define STM32F4_FLASH_SR_PGPERR BSP_BIT32(6) // Programming parallelism error
44#define STM32F4_FLASH_SR_PGAERR BSP_BIT32(5) // Programming alignment error
45#define STM32F4_FLASH_SR_WRPERR BSP_BIT32(4) // Write protection error
46#define STM32F4_FLASH_SR_OPERR BSP_BIT32(1) // Operation error
47#define STM32F4_FLASH_SR_EOP BSP_BIT32(0) // End of operation
48
49 uint32_t cr; // Control register
50#define STM32F4_FLASH_CR_LOCK BSP_BIT32(31) // Lock
51#define STM32F4_FLASH_CR_ERRIE BSP_BIT32(25) // Error interrupt enable
52#define STM32F4_FLASH_CR_EOPIE BSP_BIT32(24) // End of operation interrupt enable
53#define STM32F4_FLASH_CR_STRT BSP_BIT32(16) // Start
54#define STM32F4_FLASH_CR_PSIZE(val) BSP_FLD32(val, 8, 9) // Program size
55#define STM32F4_FLASH_CR_PSIZE_GET(reg) BSP_FLD32GET(reg, 8, 9)
56#define STM32F4_FLASH_CR_PSIZE_SET(reg, val) BSP_FLD32SET(reg, val, 8, 9)
57#define STM32F4_FLASH_CR_SNB BSP_FLD32(val, 3, 6) // Sector number
58#define STM32F4_FLASH_CR_SNB_GET(reg) BSP_FLD32GET(reg, 3, 6)
59#define STM32F4_FLASH_CR_SNB_SET(reg, val) BSP_FLD32SET(reg, val, 3, 6)
60#define STM32F4_FLASH_CR_MER BSP_BIT32(2) // Mass erase
61#define STM32F4_FLASH_CR_SER BSP_BIT32(1) // Sector erase
62#define STM32F4_FLASH_CR_PG BSP_BIT32(0) // Programming
63
64 uint32_t optcr; // Option control register
65#define STM32F4_FLASH_OPTCR_NWRP(val) BSP_FLD32(val, 16, 27) // Not write protect
66#define STM32F4_FLASH_OPTCR_NWRP_GET(reg) BSP_FLD32GET(reg, 16, 27)
67#define STM32F4_FLASH_OPTCR_NWRP_SET(reg, val) BSP_FLD32SET(reg, val, 16, 27)
68#define STM32F4_FLASH_OPTCR_RDP(val) BSP_FLD32(val, 8, 15) // Read protect
69#define STM32F4_FLASH_OPTCR_RDP_GET(reg) BSP_FLD32GET(reg, 8, 15)
70#define STM32F4_FLASH_OPTCR_RDP_SET(reg, val) BSP_FLD32SET(reg, val, 8, 15)
71#define STM32F4_FLASH_OPTCR_USER(val) BSP_FLD32(val, 5, 7) // User option bytes
72#define STM32F4_FLASH_OPTCR_USER_GET(reg) BSP_FLD32GET(reg, 5, 7)
73#define STM32F4_FLASH_OPTCR_USER_SET(reg, val) BSP_FLD32SET(reg, val, 5, 7)
74#define STM32F4_FLASH_OPTCR_BOR_LEVEL(val) BSP_FLD32(val, 2, 3) // BOR reset level
75#define STM32F4_FLASH_OPTCR_BOR_LEVEL_GET(reg) BSP_FLD32GET(reg, 2, 3)
76#define STM32F4_FLASH_OPTCR_BOR_LEVEL_SET(reg, val) BSP_FLD32SET(reg, val, 2, 3)
77#define STM32F4_FLASH_CR_OPTSTRT BSP_BIT32(1) // Option start
78#define STM32F4_FLASH_CR_OPTLOCK BSP_BIT32(0) // Option lock
79
80} __attribute__ ((packed));
81typedef struct stm32f4_flash_s stm32f4_flash;
82
83#endif /* LIBBSP_ARM_STM32F4_STM32F4XXXX_FLASH_H */
utility.h
Utility macros.
__attribute__
Definition: jffs2.h:92
stm32f4_flash_s
Definition: stm32f4xxxx_flash.h:20