Raspberry-W25Q64
SPI Flash Memory W25Q64 Access Library for RaspberryPi
I ported from here.
https://github.com/Tamakichi/Arduino-W25Q64
Build
git clone https://github.com/nopnop2002/Raspberry-W25Q64
cd Raspberry-W25Q64
make
API
// Start Flash
void W25Q64_begin(uint8_t spich);
// Get status register1
uint8_t W25Q64_readStatusReg1(void);
// Get status register2
uint8_t W25Q64_readStatusReg2(void);
// Get JEDEC ID(Manufacture, Memory Type,Capacity)
void W25Q64_readManufacturer(uint8_t* d);
// Get Unique ID
void W25Q64_readUniqieID(uint8_t* d);
// Check busy
bool W25Q64_IsBusy(void);
// Set power down mode
void W25Q64_powerDown(void);
// Set write enable
void W25Q64_WriteEnable(void);
// Set write disable
void W25Q64_WriteDisable(void);
// Read data from memory
uint16_t W25Q64_read(uint32_t addr,uint8_t *buf,uint16_t n);
// First read data from memory
uint16_t W25Q64_fastread(uint32_t addr,uint8_t *buf,uint16_t n);
// Erase data by Sector
bool W25Q64_eraseSector(uint16_t sect_no, bool flgwait);
// Erase data by block(64KB)
bool W25Q64_erase64Block(uint16_t blk_no, bool flgwait);
// Erase data by Block(32KB)
bool W25Q64_erase32Block(uint16_t blk_no, bool flgwait);
// Erase all data
bool W25Q64_eraseAll(bool flgwait);
// Write data to memory
uint16_t W25Q64_pageWrite(uint16_t sect_no, uint16_t inaddr, uint8_t* data, uint16_t n);
Wireing
Output
JEDEC ID:
Byte1 : ManufacturerID(0xef=Winbond)
Byte2 : MemoryType(0x40=SPI/0x60=QPI)
Byte3 : Capacity(2^0x17=2^23=0x800000=8M Byte=64M Bit)
First 10Byte : ASCII 0-9
Next 32Byte : ASCII A-Z