diff options
Diffstat (limited to 'tmk_core/common/chibios/eeprom_stm32.h')
| -rwxr-xr-x | tmk_core/common/chibios/eeprom_stm32.h | 68 |
1 files changed, 27 insertions, 41 deletions
diff --git a/tmk_core/common/chibios/eeprom_stm32.h b/tmk_core/common/chibios/eeprom_stm32.h index 09229530c..892e417b7 100755 --- a/tmk_core/common/chibios/eeprom_stm32.h +++ b/tmk_core/common/chibios/eeprom_stm32.h @@ -10,15 +10,17 @@ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. * - * This files are free to use from https://github.com/rogerclarkmelbourne/Arduino_STM32 and - * https://github.com/leaflabs/libmaple + * This files are free to use from http://engsta.com/stm32-flash-memory-eeprom-emulator/ by + * Artur F. * * Modifications for QMK and STM32F303 by Yiancar + * + * This library assumes 8-bit data locations. To add a new MCU, please provide the flash + * page size and the total flash size in Kb. The number of available pages must be a multiple + * of 2. Only half of the pages account for the total EEPROM size. + * This library also assumes that the pages are not used by the firmware. */ -// This file must be modified if the MCU is not defined below. -// This library also assumes that the pages are not used by the firmware. - #ifndef __EEPROM_H #define __EEPROM_H @@ -38,9 +40,11 @@ #ifndef EEPROM_PAGE_SIZE #if defined (MCU_STM32F103RB) - #define EEPROM_PAGE_SIZE (uint16_t)0x400 /* Page size = 1KByte */ + #define FEE_PAGE_SIZE (uint16_t)0x400 // Page size = 1KByte + #define FEE_DENSITY_PAGES 2 // How many pages are used #elif defined (MCU_STM32F103ZE) || defined (MCU_STM32F103RE) || defined (MCU_STM32F103RD) || defined (MCU_STM32F303CC) - #define EEPROM_PAGE_SIZE (uint16_t)0x800 /* Page size = 2KByte */ + #define FEE_PAGE_SIZE (uint16_t)0x800 // Page size = 2KByte + #define FEE_DENSITY_PAGES 4 // How many pages are used #else #error "No MCU type specified. Add something like -DMCU_STM32F103RB to your compiler arguments (probably in a Makefile)." #endif @@ -48,48 +52,30 @@ #ifndef EEPROM_START_ADDRESS #if defined (MCU_STM32F103RB) - #define EEPROM_START_ADDRESS ((uint32_t)(0x8000000 + 128 * 1024 - 2 * EEPROM_PAGE_SIZE)) + #define FEE_MCU_FLASH_SIZE 128 // Size in Kb #elif defined (MCU_STM32F103ZE) || defined (MCU_STM32F103RE) - #define EEPROM_START_ADDRESS ((uint32_t)(0x8000000 + 512 * 1024 - 2 * EEPROM_PAGE_SIZE)) + #define FEE_MCU_FLASH_SIZE 512 // Size in Kb #elif defined (MCU_STM32F103RD) - #define EEPROM_START_ADDRESS ((uint32_t)(0x8000000 + 384 * 1024 - 2 * EEPROM_PAGE_SIZE)) + #define FEE_MCU_FLASH_SIZE 384 // Size in Kb #elif defined (MCU_STM32F303CC) - #define EEPROM_START_ADDRESS ((uint32_t)(0x8000000 + 256 * 1024 - 2 * EEPROM_PAGE_SIZE)) + #define FEE_MCU_FLASH_SIZE 256 // Size in Kb #else #error "No MCU type specified. Add something like -DMCU_STM32F103RB to your compiler arguments (probably in a Makefile)." #endif #endif -/* Pages 0 and 1 base and end addresses */ -#define EEPROM_PAGE0_BASE ((uint32_t)(EEPROM_START_ADDRESS + 0x000)) -#define EEPROM_PAGE1_BASE ((uint32_t)(EEPROM_START_ADDRESS + EEPROM_PAGE_SIZE)) - -/* Page status definitions */ -#define EEPROM_ERASED ((uint16_t)0xFFFF) /* PAGE is empty */ -#define EEPROM_RECEIVE_DATA ((uint16_t)0xEEEE) /* PAGE is marked to receive data */ -#define EEPROM_VALID_PAGE ((uint16_t)0x0000) /* PAGE containing valid data */ - -/* Page full define */ -enum uint16_t - { - EEPROM_OK = ((uint16_t)0x0000), - EEPROM_OUT_SIZE = ((uint16_t)0x0081), - EEPROM_BAD_ADDRESS = ((uint16_t)0x0082), - EEPROM_BAD_FLASH = ((uint16_t)0x0083), - EEPROM_NOT_INIT = ((uint16_t)0x0084), - EEPROM_SAME_VALUE = ((uint16_t)0x0085), - EEPROM_NO_VALID_PAGE = ((uint16_t)0x00AB) - }; - -#define EEPROM_DEFAULT_DATA 0xFFFF +// DONT CHANGE +// Choose location for the first EEPROM Page address on the top of flash +#define FEE_PAGE_BASE_ADDRESS ((uint32_t)(0x8000000 + FEE_MCU_FLASH_SIZE * 1024 - FEE_DENSITY_PAGES * FEE_PAGE_SIZE)) +#define FEE_DENSITY_BYTES ((FEE_PAGE_SIZE / 2) * FEE_DENSITY_PAGES - 1) +#define FEE_LAST_PAGE_ADDRESS (FEE_PAGE_BASE_ADDRESS + (FEE_PAGE_SIZE * FEE_DENSITY_PAGES)) +#define FEE_EMPTY_WORD ((uint16_t)0xFFFF) +#define FEE_ADDR_OFFSET(Address)(Address * 2) // 1Byte per Word will be saved to preserve Flash - uint16_t EEPROM_init(void); - uint16_t EEPROM_format(void); - uint16_t EEPROM_erases(uint16_t *); - uint16_t EEPROM_read (uint16_t address, uint16_t *data); - uint16_t EEPROM_write(uint16_t address, uint16_t data); - uint16_t EEPROM_update(uint16_t address, uint16_t data); - uint16_t EEPROM_count(uint16_t *); - uint16_t EEPROM_maxcount(void); +// Use this function to initialize the functionality +uint16_t EEPROM_Init(void); +void EEPROM_Erase (void); +uint16_t EEPROM_WriteDataByte (uint16_t Address, uint8_t DataByte); +uint8_t EEPROM_ReadDataByte (uint16_t Address); #endif /* __EEPROM_H */ |