2 * This software is experimental and a work in progress.
3 * Under no circumstances should these files be used in relation to any critical system(s).
4 * Use of these files is at your own risk.
6 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
7 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
8 * PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
9 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
10 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
11 * DEALINGS IN THE SOFTWARE.
13 * This files are free to use from https://github.com/rogerclarkmelbourne/Arduino_STM32 and
14 * https://github.com/leaflabs/libmaple
16 * Modifications for QMK and STM32F303 by Yiancar
19 // This file must be modified if the MCU is not defined below.
20 // This library also assumes that the pages are not used by the firmware.
27 #include "flash_stm32.h"
29 // HACK ALERT. This definition may not match your processor
30 // To Do. Work out correct value for EEPROM_PAGE_SIZE on the STM32F103CT6 etc
31 #if defined(EEPROM_EMU_STM32F303xC)
32 #define MCU_STM32F303CC
33 #elif defined(EEPROM_EMU_STM32F103xB)
34 #define MCU_STM32F103RB
36 #error "not implemented."
39 #ifndef EEPROM_PAGE_SIZE
40 #if defined (MCU_STM32F103RB)
41 #define EEPROM_PAGE_SIZE (uint16_t)0x400 /* Page size = 1KByte */
42 #elif defined (MCU_STM32F103ZE) || defined (MCU_STM32F103RE) || defined (MCU_STM32F103RD) || defined (MCU_STM32F303CC)
43 #define EEPROM_PAGE_SIZE (uint16_t)0x800 /* Page size = 2KByte */
45 #error "No MCU type specified. Add something like -DMCU_STM32F103RB to your compiler arguments (probably in a Makefile)."
49 #ifndef EEPROM_START_ADDRESS
50 #if defined (MCU_STM32F103RB)
51 #define EEPROM_START_ADDRESS ((uint32_t)(0x8000000 + 128 * 1024 - 2 * EEPROM_PAGE_SIZE))
52 #elif defined (MCU_STM32F103ZE) || defined (MCU_STM32F103RE)
53 #define EEPROM_START_ADDRESS ((uint32_t)(0x8000000 + 512 * 1024 - 2 * EEPROM_PAGE_SIZE))
54 #elif defined (MCU_STM32F103RD)
55 #define EEPROM_START_ADDRESS ((uint32_t)(0x8000000 + 384 * 1024 - 2 * EEPROM_PAGE_SIZE))
56 #elif defined (MCU_STM32F303CC)
57 #define EEPROM_START_ADDRESS ((uint32_t)(0x8000000 + 256 * 1024 - 2 * EEPROM_PAGE_SIZE))
59 #error "No MCU type specified. Add something like -DMCU_STM32F103RB to your compiler arguments (probably in a Makefile)."
63 /* Pages 0 and 1 base and end addresses */
64 #define EEPROM_PAGE0_BASE ((uint32_t)(EEPROM_START_ADDRESS + 0x000))
65 #define EEPROM_PAGE1_BASE ((uint32_t)(EEPROM_START_ADDRESS + EEPROM_PAGE_SIZE))
67 /* Page status definitions */
68 #define EEPROM_ERASED ((uint16_t)0xFFFF) /* PAGE is empty */
69 #define EEPROM_RECEIVE_DATA ((uint16_t)0xEEEE) /* PAGE is marked to receive data */
70 #define EEPROM_VALID_PAGE ((uint16_t)0x0000) /* PAGE containing valid data */
72 /* Page full define */
75 EEPROM_OK = ((uint16_t)0x0000),
76 EEPROM_OUT_SIZE = ((uint16_t)0x0081),
77 EEPROM_BAD_ADDRESS = ((uint16_t)0x0082),
78 EEPROM_BAD_FLASH = ((uint16_t)0x0083),
79 EEPROM_NOT_INIT = ((uint16_t)0x0084),
80 EEPROM_SAME_VALUE = ((uint16_t)0x0085),
81 EEPROM_NO_VALID_PAGE = ((uint16_t)0x00AB)
84 #define EEPROM_DEFAULT_DATA 0xFFFF
86 uint16_t EEPROM_init(void);
87 uint16_t EEPROM_format(void);
88 uint16_t EEPROM_erases(uint16_t *);
89 uint16_t EEPROM_read (uint16_t address, uint16_t *data);
90 uint16_t EEPROM_write(uint16_t address, uint16_t data);
91 uint16_t EEPROM_update(uint16_t address, uint16_t data);
92 uint16_t EEPROM_count(uint16_t *);
93 uint16_t EEPROM_maxcount(void);
95 #endif /* __EEPROM_H */