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- /**
- * Marlin 3D Printer Firmware
- * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
- #ifdef STM32F7
-
- /**
- * Description: functions for I2C connected external EEPROM.
- * Not platform dependent.
- */
-
- #include "../../inc/MarlinConfig.h"
-
- // --------------------------------------------------------------------------
- // Includes
- // --------------------------------------------------------------------------
-
- #include "../HAL.h"
- #include "EEPROM_Emul/eeprom_emul.h"
-
-
- // --------------------------------------------------------------------------
- // Externals
- // --------------------------------------------------------------------------
-
- // --------------------------------------------------------------------------
- // Local defines
- // --------------------------------------------------------------------------
-
- // --------------------------------------------------------------------------
- // Types
- // --------------------------------------------------------------------------
-
- // --------------------------------------------------------------------------
- // Variables
- // --------------------------------------------------------------------------
-
- // --------------------------------------------------------------------------
- // Public Variables
- // --------------------------------------------------------------------------
-
- // --------------------------------------------------------------------------
- // Private Variables
- // --------------------------------------------------------------------------
- static bool eeprom_initialised = false;
- // --------------------------------------------------------------------------
- // Function prototypes
- // --------------------------------------------------------------------------
-
- // --------------------------------------------------------------------------
- // Private functions
- // --------------------------------------------------------------------------
-
- // --------------------------------------------------------------------------
- // Public functions
- // --------------------------------------------------------------------------
-
- // FLASH_FLAG_PGSERR (Programming Sequence Error) was renamed to
- // FLASH_FLAG_ERSERR (Erasing Sequence Error) in STM32F7
- #define FLASH_FLAG_PGSERR FLASH_FLAG_ERSERR
-
- // --------------------------------------------------------------------------
- // EEPROM
- // --------------------------------------------------------------------------
-
-
- void eeprom_init() {
- if(!eeprom_initialised) {
- HAL_FLASH_Unlock();
-
- __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR |FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR | FLASH_FLAG_PGSERR);
-
- /* EEPROM Init */
- if(EE_Initialise() != EE_OK)
- {
- while(1) {
- HAL_Delay(1);
- }
- }
-
- HAL_FLASH_Lock();
- eeprom_initialised = true;
- }
-
- }
-
- void eeprom_write_byte(unsigned char *pos, unsigned char value) {
- uint16_t eeprom_address = (unsigned) pos;
-
- eeprom_init();
-
- HAL_FLASH_Unlock();
- __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR |FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR | FLASH_FLAG_PGSERR);
- if(EE_WriteVariable(eeprom_address, (uint16_t) value) != EE_OK) {
- while(1) {
- HAL_Delay(1);
- }
- }
- HAL_FLASH_Lock();
- }
-
- unsigned char eeprom_read_byte(unsigned char *pos) {
- uint16_t data = 0xFF;
- uint16_t eeprom_address = (unsigned) pos;
-
- eeprom_init();
-
- if(EE_ReadVariable(eeprom_address, &data) != EE_OK) {
- return (char) data;
- }
- return (char)data;
- }
-
- void eeprom_read_block (void *__dst, const void *__src, size_t __n) {
- uint16_t data = 0xFF;
- uint16_t eeprom_address = (unsigned) __src;
-
- eeprom_init();
-
- for(uint8_t c = 0; c < __n; c++) {
- EE_ReadVariable(eeprom_address+c, &data);
- *((uint8_t*)__dst + c) = data;
- }
- }
-
- void eeprom_update_block (const void *__src, void *__dst, size_t __n) {
-
- }
-
- #endif // STM32F7
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