w25q_commands.h

/*
 * w25q_commands.h
 *
 * Winbond W25Q-series SPI/QSPI flash command opcodes and geometry constants.
 * Shared between the SPI and QSPI variants of this driver -- the opcodes and
 * memory geometry are identical regardless of transport.
 *
 * Adapted from the command set documented in Adafruit_SPIFlash's
 * Adafruit_FlashTransport.h (https://github.com/adafruit/Adafruit_SPIFlash,
 * MIT License, Copyright (c) 2019 hathach for Adafruit Industries), which in
 * turn reflects the standard JEDEC-style command set used across essentially
 * all Winbond W25Q parts (confirmed against the W25Q16/W25Q64/W25Q128
 * datasheets used by the Adafruit 5632/5633/5634 breakout boards).
 *
 *  Created on: Aug 30, 2026
 *      Author: johng
 */
 
#ifndef W25Q_W25Q_COMMANDS_H_
#define W25Q_W25Q_COMMANDS_H_
 
enum {
  W25Q_CMD_READ = 0x03,               
  W25Q_CMD_FAST_READ = 0x0B,          
  W25Q_CMD_QUAD_READ = 0x6B,          
 
  W25Q_CMD_READ_JEDEC_ID = 0x9F,      
 
  W25Q_CMD_PAGE_PROGRAM = 0x02,       
  W25Q_CMD_QUAD_PAGE_PROGRAM = 0x32,  
 
  W25Q_CMD_READ_STATUS1 = 0x05,       
  W25Q_CMD_READ_STATUS2 = 0x35,       
  W25Q_CMD_WRITE_STATUS1 = 0x01,
  W25Q_CMD_WRITE_STATUS2 = 0x31,
 
  W25Q_CMD_WRITE_ENABLE = 0x06,
  W25Q_CMD_WRITE_DISABLE = 0x04,
 
  W25Q_CMD_ERASE_SECTOR = 0x20,       
  W25Q_CMD_ERASE_BLOCK = 0xD8,        
  W25Q_CMD_ERASE_CHIP = 0xC7,
 
  W25Q_CMD_ENABLE_RESET = 0x66,       
  W25Q_CMD_RESET = 0x99,
};
 
enum {
  W25Q_PAGE_SIZE = 256,               
  W25Q_SECTOR_SIZE = 4 * 1024UL,      
  W25Q_BLOCK_SIZE = 64 * 1024UL,      
};
 
#define W25Q_JEDEC_MANUFACTURER_ID 0xEF
 
#endif /* W25Q_W25Q_COMMANDS_H_ */