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circuitpython/atmel-samd/boards/flash_AT25DF081A.h

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/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* 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.
*/
#ifndef MICROPY_INCLUDED_ATMEL_SAMD_BOARD_FLASH_AT25DF081A_H
#define MICROPY_INCLUDED_ATMEL_SAMD_BOARD_FLASH_AT25DF081A_H
// Settings for the Adesto Tech AT25DF081A 1MiB SPI flash. Its on the SAMD21
// Xplained board.
// Datasheet: https://www.adestotech.com/wp-content/uploads/doc8715.pdf
// The total flash size in bytes.
#define SPI_FLASH_TOTAL_SIZE (1 << 20) // 2 MiB
// The size of the smallest erase unit thats erased with command 0x20.
#define SPI_FLASH_ERASE_SIZE (1 << 12) // 4 KiB
// The size of a page that is programmed with page program command 0x02.
#define SPI_FLASH_PAGE_SIZE (256) // 256 bytes
// These are the first three response bytes to the JEDEC ID command 0x9f that is
// used to confirm we're talking to the flash we expect. The data sheet calls
// them something else so we just match it byte for byte.
#define SPI_FLASH_JEDEC_MANUFACTURER 0x1F
#define SPI_FLASH_JEDEC_MEMORY_TYPE 0x45
#define SPI_FLASH_JEDEC_CAPACITY 0x01
#define SPI_FLASH_SECTOR_PROTECTION
#endif // MICROPY_INCLUDED_ATMEL_SAMD_BOARD_FLASH_AT25DF081A_H