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 #define MCU_STM32F303CC
33 #ifndef EEPROM_PAGE_SIZE
34 #if defined (MCU_STM32F103RB)
35 #define EEPROM_PAGE_SIZE (uint16_t)0x400 /* Page size = 1KByte */
36 #elif defined (MCU_STM32F103ZE) || defined (MCU_STM32F103RE) || defined (MCU_STM32F103RD) || defined (MCU_STM32F303CC)
37 #define EEPROM_PAGE_SIZE (uint16_t)0x800 /* Page size = 2KByte */
39 #error "No MCU type specified. Add something like -DMCU_STM32F103RB to your compiler arguments (probably in a Makefile)."
43 #ifndef EEPROM_START_ADDRESS
44 #if defined (MCU_STM32F103RB)
45 #define EEPROM_START_ADDRESS ((uint32_t)(0x8000000 + 128 * 1024 - 2 * EEPROM_PAGE_SIZE))
46 #elif defined (MCU_STM32F103ZE) || defined (MCU_STM32F103RE)
47 #define EEPROM_START_ADDRESS ((uint32_t)(0x8000000 + 512 * 1024 - 2 * EEPROM_PAGE_SIZE))
48 #elif defined (MCU_STM32F103RD)
49 #define EEPROM_START_ADDRESS ((uint32_t)(0x8000000 + 384 * 1024 - 2 * EEPROM_PAGE_SIZE))
50 #elif defined (MCU_STM32F303CC)
51 #define EEPROM_START_ADDRESS ((uint32_t)(0x8000000 + 256 * 1024 - 2 * EEPROM_PAGE_SIZE))
53 #error "No MCU type specified. Add something like -DMCU_STM32F103RB to your compiler arguments (probably in a Makefile)."
57 /* Pages 0 and 1 base and end addresses */
58 #define EEPROM_PAGE0_BASE ((uint32_t)(EEPROM_START_ADDRESS + 0x000))
59 #define EEPROM_PAGE1_BASE ((uint32_t)(EEPROM_START_ADDRESS + EEPROM_PAGE_SIZE))
61 /* Page status definitions */
62 #define EEPROM_ERASED ((uint16_t)0xFFFF) /* PAGE is empty */
63 #define EEPROM_RECEIVE_DATA ((uint16_t)0xEEEE) /* PAGE is marked to receive data */
64 #define EEPROM_VALID_PAGE ((uint16_t)0x0000) /* PAGE containing valid data */
66 /* Page full define */
69 EEPROM_OK = ((uint16_t)0x0000),
70 EEPROM_OUT_SIZE = ((uint16_t)0x0081),
71 EEPROM_BAD_ADDRESS = ((uint16_t)0x0082),
72 EEPROM_BAD_FLASH = ((uint16_t)0x0083),
73 EEPROM_NOT_INIT = ((uint16_t)0x0084),
74 EEPROM_SAME_VALUE = ((uint16_t)0x0085),
75 EEPROM_NO_VALID_PAGE = ((uint16_t)0x00AB)
78 #define EEPROM_DEFAULT_DATA 0xFFFF
80 uint16_t EEPROM_init(void);
81 uint16_t EEPROM_format(void);
82 uint16_t EEPROM_erases(uint16_t *);
83 uint16_t EEPROM_read (uint16_t address, uint16_t *data);
84 uint16_t EEPROM_write(uint16_t address, uint16_t data);
85 uint16_t EEPROM_update(uint16_t address, uint16_t data);
86 uint16_t EEPROM_count(uint16_t *);
87 uint16_t EEPROM_maxcount(void);
89 #endif /* __EEPROM_H */