From 621ce29a53e9e94e085fbd86c0b7134e9df4bfe5 Mon Sep 17 00:00:00 2001 From: yiancar Date: Wed, 29 Aug 2018 23:14:49 +0300 Subject: STM32 EEPROM Emulation (#3741) * STM32 EEPROM Emulation - Added EEPROM emulation libaries from libmaple and Arduino_STM32. https://github.com/rogerclarkmelbourne/Arduino_STM32 and https://github.com/leaflabs/libmaple. - Renamed teensy EEPROM library and added conditional selection of library. - Remapped EEPROM memory map for 16 byte blocks (as is with STM32f3xx MCUs). - Added EEPROM initialization in main.c of Chibios. - Added EEPROM format to clear the emulated pages when EEPROM is marked as invalid. * Fixed ifdef --- tmk_core/common/chibios/eeprom_stm32.h | 89 ++++++++++++++++++++++++++++++++++ 1 file changed, 89 insertions(+) create mode 100755 tmk_core/common/chibios/eeprom_stm32.h (limited to 'tmk_core/common/chibios/eeprom_stm32.h') diff --git a/tmk_core/common/chibios/eeprom_stm32.h b/tmk_core/common/chibios/eeprom_stm32.h new file mode 100755 index 0000000000..d06d302665 --- /dev/null +++ b/tmk_core/common/chibios/eeprom_stm32.h @@ -0,0 +1,89 @@ +/* + * This software is experimental and a work in progress. + * Under no circumstances should these files be used in relation to any critical system(s). + * Use of these files is at your own risk. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, + * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR + * PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE + * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * 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 + * + * Modifications for QMK and STM32F303 by Yiancar + */ + +// 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 + +#include "ch.h" +#include "hal.h" +#include "flash_stm32.h" + +// HACK ALERT. This definition may not match your processor +// To Do. Work out correct value for EEPROM_PAGE_SIZE on the STM32F103CT6 etc +#define MCU_STM32F303CC + +#ifndef EEPROM_PAGE_SIZE + #if defined (MCU_STM32F103RB) + #define EEPROM_PAGE_SIZE (uint16_t)0x400 /* Page size = 1KByte */ + #elif defined (MCU_STM32F103ZE) || defined (MCU_STM32F103RE) || defined (MCU_STM32F103RD) || defined (MCU_STM32F303CC) + #define EEPROM_PAGE_SIZE (uint16_t)0x800 /* Page size = 2KByte */ + #else + #error "No MCU type specified. Add something like -DMCU_STM32F103RB to your compiler arguments (probably in a Makefile)." + #endif +#endif + +#ifndef EEPROM_START_ADDRESS + #if defined (MCU_STM32F103RB) + #define EEPROM_START_ADDRESS ((uint32_t)(0x8000000 + 128 * 1024 - 2 * EEPROM_PAGE_SIZE)) + #elif defined (MCU_STM32F103ZE) || defined (MCU_STM32F103RE) + #define EEPROM_START_ADDRESS ((uint32_t)(0x8000000 + 512 * 1024 - 2 * EEPROM_PAGE_SIZE)) + #elif defined (MCU_STM32F103RD) + #define EEPROM_START_ADDRESS ((uint32_t)(0x8000000 + 384 * 1024 - 2 * EEPROM_PAGE_SIZE)) + #elif defined (MCU_STM32F303CC) + #define EEPROM_START_ADDRESS ((uint32_t)(0x8000000 + 250 * 1024 - 2 * EEPROM_PAGE_SIZE)) + #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 + + 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); + +#endif /* __EEPROM_H */ -- cgit v1.2.3