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W25Qxxx QSPI STM32 Library

HAL STM32 Driver for Winbond W25Q-series memory, using Quad-SPI interface

Poster

Features:

  • Easy applying: ST's HAL functions are used
  • Uses Quad-SPI interface (4 lines)
  • Supports (almost) all chip commands (later)
  • Simple usage with data types wrapper-functions, or use raw 8-bit data

Documentation is also available in doxygen

Function reference (from .h file):

W25Q_STATE W25Q_Init(void);		// Initalize function

W25Q_STATE W25Q_ReadStatusReg(u8_t *reg_data, u8_t reg_num); // Read status register to variable
W25Q_STATE W25Q_WriteStatusReg(u8_t reg_data, u8_t reg_num); // Write status register from variable
W25Q_STATE W25Q_ReadStatusStruct(W25Q_STATUS_REG *status);	 // Read all status registers to struct
W25Q_STATE W25Q_IsBusy(void);	// Check chip's busy status

W25Q_STATE W25Q_ReadSByte(i8_t *buf, u8_t pageShift, u32_t pageNum);	// Read signed 8-bit variable
W25Q_STATE W25Q_ReadByte(u8_t *buf, u8_t pageShift, u32_t pageNum);		// Read 8-bit variable
W25Q_STATE W25Q_ReadSWord(i16_t *buf, u8_t pageShift, u32_t pageNum);	// Read signed 16-bit variable
W25Q_STATE W25Q_ReadWord(u16_t *buf, u8_t pageShift, u32_t pageNum);	// Read 16-bit variable
W25Q_STATE W25Q_ReadSLong(i32_t *buf, u8_t pageShift, u32_t pageNum);	// Read signed 32-bit variable
W25Q_STATE W25Q_ReadLong(u32_t *buf, u8_t pageShift, u32_t pageNum);	// Read 32-bit variable
W25Q_STATE W25Q_ReadData(u8_t *buf, u16_t len, u8_t pageShift, u32_t pageNum);  // Read any 8-bit data
W25Q_STATE W25Q_ReadRaw(u8_t *buf, u16_t data_len, u32_t rawAddr);  // Read data from raw addr
W25Q_STATE W25Q_SingleRead(u8_t *buf, u32_t len, u32_t Addr);	 // Read data from raw addr by single line

W25Q_STATE W25Q_EraseSector(u32_t SectAddr);  // Erase 4KB Sector
W25Q_STATE W25Q_EraseBlock(u32_t BlockAddr, u8_t size); // Erase 32KB/64KB Sector
W25Q_STATE W25Q_EraseChip(void);  // Erase all chip

W25Q_STATE W25Q_ProgramSByte(i8_t buf, u8_t pageShift, u32_t pageNum);	// Program signed 8-bit variable
W25Q_STATE W25Q_ProgramByte(u8_t buf, u8_t pageShift, u32_t pageNum);  // Program 8-bit variable
W25Q_STATE W25Q_ProgramSWord(i16_t buf, u8_t pageShift, u32_t pageNum);	// Program signed 16-bit variable
W25Q_STATE W25Q_ProgramWord(u16_t buf, u8_t pageShift, u32_t pageNum);	// Program 16-bit variable
W25Q_STATE W25Q_ProgramSLong(i32_t buf, u8_t pageShift, u32_t pageNum);	// Program signed 32-bit variable
W25Q_STATE W25Q_ProgramLong(u32_t buf, u8_t pageShift, u32_t pageNum);	// Program 32-bit variable
W25Q_STATE W25Q_ProgramData(u8_t *buf, u16_t len, u8_t pageShift, u32_t pageNum); // Program any 8-bit data
W25Q_STATE W25Q_ProgramRaw(u8_t *buf, u16_t data_len, u32_t rawAddr); 	// Program data to raw addr

W25Q_STATE W25Q_ProgSuspend(void); // Pause Programm/Erase operation
W25Q_STATE W25Q_ProgResume(void); // Resume Programm/Erase operation

W25Q_STATE W25Q_Sleep(void);	// Set low current consumption
W25Q_STATE W25Q_WakeUP(void);	// Wake the chip up from sleep mode

W25Q_STATE W25Q_ReadID(u8_t *buf);  // Read chip ID

W25Q_STATE W25Q_SwReset(bool force);	// Software reset

Functions that aren't yet ready:

W25Q_STATE W25Q_EnableVolatileSR(void);  // Make Status Register Volatile
W25Q_STATE W25Q_SetBurstWrap(u8_t WrapSize); // Set Burst with Wrap
W25Q_STATE W25Q_ReadFullID(u8_t *buf);  // Read full chip ID (Manufacturer ID + Device ID)
W25Q_STATE W25Q_ReadUID(u8_t *buf);     // Read unique chip ID
W25Q_STATE W25Q_ReadJEDECID(u8_t *buf); // Read ID by JEDEC Standards
W25Q_STATE W25Q_ReadSFDPRegister(u8_t *buf); // Read device descriptor (SFDP Standard)
W25Q_STATE W25Q_EraseSecurityRegisters(u8_t numReg);	// Erase security register
W25Q_STATE W25Q_ProgSecurityRegisters(u8_t *buf, u8_t numReg, u8_t byteAddr);	// Program security register
W25Q_STATE W25Q_ReadSecurityRegisters(u8_t *buf, u8_t numReg, u8_t byteAddr);	// Read security register
W25Q_STATE W25Q_BlockReadOnly(u32_t Addr, bool enable);   // Individual block/sector read-only lock
W25Q_STATE W25Q_BlockReadOnlyCheck(bool *state, u32_t Addr);  // Check block's/sector's read-only lock status
W25Q_STATE W25Q_GlobalReadOnly(bool enable);		// Set read-only param to all chip

Instructions for use:

  • Use CubeMX to configure QUADSPI peripheral reffer to your datasheet
  • Memory size calculation (AN4760 page 45):
    2^(N+1) = Mem size in bytes
    Example: 256 Mbit = 32 MByte = 32'768 KByte = 33'554'432 Byte = 2^25 Byte => N = 24
    Flash size
  • Connect memory to STM reffer to Datasheet, or your's chip datasheet
  • Include "w25q_mem.h" to your code
  • Start with Init function
  • Enjoy )

Any questions? Write an issue! Or create pull request.

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Example

Example