Macronix Low Power Serial NOR Flash in SPI mode.
Dependents: MX25Rxx35F_Serial_NOR_Flash_Testbench MX25Rxx35F_Serial_NOR_Flash_Testbench Coragem_all_sensors 1_Test_Flash_ADC_RTT
Diff: SPI_MX25R.cpp
- Revision:
- 2:f72110475fec
- Parent:
- 1:8403da5975cb
diff -r 8403da5975cb -r f72110475fec SPI_MX25R.cpp --- a/SPI_MX25R.cpp Mon Jul 20 20:45:33 2015 +0000 +++ b/SPI_MX25R.cpp Thu Jul 23 17:11:27 2015 +0000 @@ -1,178 +1,185 @@ /* - * SPI_MX25R SPI-Flash Memory + * SPI_MX25R Series SPI-Flash Memory * Macronix Low Power Serial NOR Flash * (x2, and x4 I/O modes not implemented) */ #include "SPI_MX25R.h" -#define CMD_READ 0x03 // x1 Normal Read Data Byte -#define CMD_FREAD 0x0B // x1 Fast Read Data Byte -#define CMD_PP 0x02 // Page Program -#define CMD_SE 0x20 // 4KB Sector Erase -#define CMD_32KBE 0x52 // 32KB Block Erase -#define CMD_BE 0xD8 // 64KB Block Erase -#define CMD_CE 0xC7 // Chip Erase -#define CMD_RDID 0x9F // Read Identification -#define CMD_RDSFDP 0x5A // Read SFDP -#define CMD_RDSR 0x05 // Read Status Register -#define CMD_RDCR 0x15 // Read Configuration Register -#define CMD_WREN 0x06 // Write Enable -#define CMD_WRDI 0x04 // Write Disable -#define CMD_WRSR 0x01 // Write Status Register -#define CMD_RSTEN 0x66 // Reset Enable -#define CMD_RST 0x99 // Reset -#define CMD_PESUS 0xB0 // x4 Program/Erase Suspend -#define CMD_PERES 0x30 // x4 Program/Erase Resume -#define CMD_DP 0xB9 // Enter Deep Power Down -#define CMD_SBL 0xC0 // Set Burst Length -#define CMD_RRE 0xFF // Release Read Enhanced Mode -#define CMD_NOP 0x00 // No Operation -#define CMD_ENSO 0xB1 // Enter Secure OTP -#define CMD_EXSO 0xC1 // Exit Secure OTP -// x2 and x4 commands not currently supported with FRDM K64F platform -//#define CMD_2READ 0xBB // x2 2READ -//#define CMD_DREAD 0x3B // x2 DREAD -//#define CMD_4READ 0xEB // x4 4READ -//#define CMD_QREAD 0x6B // x4 QREAD -//#define CMD_4PP 0x38 // x4 PP - SPI_MX25R::SPI_MX25R(PinName mosi, PinName miso, PinName sclk, PinName cs) : m_spi(mosi, miso, sclk), m_cs(cs) { } - + SPI_MX25R::~SPI_MX25R() { } - + void SPI_MX25R::writeEnable(void) { - m_cs = 0 ; + m_cs = CS_LOW ; m_spi.write(CMD_WREN) ; - m_cs = 1 ; + m_cs = CS_HIGH ; } - + void SPI_MX25R::writeDisable(void) { - m_cs = 0 ; + m_cs = CS_LOW ; m_spi.write(CMD_WRDI) ; - m_cs = 1 ; + m_cs = CS_HIGH ; } - + void SPI_MX25R::resetEnable(void) { - m_cs = 0 ; + m_cs = CS_LOW ; m_spi.write(CMD_RSTEN) ; - m_cs = 1 ; + m_cs = CS_HIGH ; } - + void SPI_MX25R::reset(void) { - m_cs = 0 ; + m_cs = CS_LOW ; m_spi.write(CMD_RST) ; - m_cs = 1 ; + m_cs = CS_HIGH ; } - + void SPI_MX25R::pgmersSuspend(void) { - m_cs = 0 ; + m_cs = CS_LOW ; m_spi.write(CMD_PESUS) ; - m_cs = 1 ; + m_cs = CS_HIGH ; } - + void SPI_MX25R::pgmersResume(void) { - m_cs = 0 ; + m_cs = CS_LOW ; m_spi.write(CMD_PERES) ; - m_cs = 1 ; + m_cs = CS_HIGH ; } - + void SPI_MX25R::deepPowerdown(void) { - m_cs = 0 ; + m_cs = CS_LOW ; m_spi.write(CMD_DP) ; - m_cs = 1 ; + m_cs = CS_HIGH ; } - + void SPI_MX25R::setBurstlength(void) { - m_cs = 0 ; + m_cs = CS_LOW ; m_spi.write(CMD_SBL) ; - m_cs = 1 ; + m_cs = CS_HIGH ; } - + void SPI_MX25R::releaseReadenhaced(void) { - m_cs = 0 ; + m_cs = CS_LOW ; m_spi.write(CMD_RRE) ; - m_cs = 1 ; + m_cs = CS_HIGH ; } - + void SPI_MX25R::noOperation(void) { - m_cs = 0 ; + m_cs = CS_LOW ; m_spi.write(CMD_NOP) ; - m_cs = 1 ; + m_cs = CS_HIGH ; } - + void SPI_MX25R::enterSecureOTP(void) { - m_cs = 0 ; + m_cs = CS_LOW ; m_spi.write(CMD_ENSO) ; - m_cs = 1 ; + m_cs = CS_HIGH ; } void SPI_MX25R::exitSecureOTP(void) { - m_cs = 0 ; + m_cs = CS_LOW ; m_spi.write(CMD_EXSO) ; - m_cs = 1 ; + m_cs = CS_HIGH ; } - + uint8_t SPI_MX25R::readStatus(void) { uint8_t data ; - m_cs = 0 ; + m_cs = CS_LOW ; m_spi.write(CMD_RDSR) ; - data = m_spi.write(CMD_RDSR) ; // dummy - m_spi.write(CMD_RDSR) ; - data = m_spi.write(CMD_RDSR) ; // dummy - m_cs = 1 ; + data = m_spi.write(DUMMY) ; // dummy + m_cs = CS_HIGH ; return( data ) ; - } +} uint32_t SPI_MX25R::readConfig(void) { uint8_t data; uint32_t config32 = 0 ; - m_cs = 0 ; + m_cs = CS_LOW ; m_spi.write(CMD_RDCR) ; // send 15h - data= m_spi.write(0x55) ; // dumy to get 1st Byte out - config32 = config32 | data ; // put in 32b reg - data= m_spi.write(0x55) ; // dummy to get 2nd Byte out - config32 = (config32 << 8) | data ; // shift and put in reg - m_cs = 1 ; - return( config32 ) ; + data= m_spi.write(DUMMY) ; // dumy to get 1st Byte out + config32 = config32 | data ; // put in 32b reg + data= m_spi.write(DUMMY) ; // dummy to get 2nd Byte out + config32 = (config32 << 8) | data ; // shift and put in reg + m_cs = CS_HIGH ; + return( config32 ) ; +} + +uint8_t SPI_MX25R::readSecurity(void) +{ + uint8_t data ; + m_cs = CS_LOW ; + m_spi.write(CMD_RDSCUR) ; // send 2Bh + data = m_spi.write(DUMMY) ; // dummy + m_cs = CS_HIGH ; + return( data ) ; } uint32_t SPI_MX25R::readID(void) { uint8_t data; - uint32_t data32 = 0 ; - m_cs = 0 ; + uint32_t data32 = 0 ; + m_cs = CS_LOW ; m_spi.write(CMD_RDID) ; // send 9Fh - data= m_spi.write(0x55) ; // dumy to get 1st Byte out - data32 = data32 | data ; // put in 32b reg - data= m_spi.write(CMD_RDID) ; // dummy to get 2nd Byte out - data32 = (data32 << 8) | data ; // shift and put in reg - data= m_spi.write(0x55) ; // dummy to get 3rd Byte out - data32 = (data32 << 8) | data ; // shift again and put in reg - m_cs = 1 ; - return( data32 ) ; + data= m_spi.write(DUMMY) ; // dumy to get 1st Byte out + data32 = data32 | data ; // put in 32b reg + data= m_spi.write(DUMMY) ; // dummy to get 2nd Byte out + data32 = (data32 << 8) | data ; // shift and put in reg + data= m_spi.write(DUMMY) ; // dummy to get 3rd Byte out + data32 = (data32 << 8) | data ; // shift again and put in reg + m_cs = CS_HIGH ; + return( data32 ) ; } +uint32_t SPI_MX25R::readREMS(void) +{ + uint8_t data; + uint32_t data32 = 0 ; + m_cs = CS_LOW ; + m_spi.write(CMD_REMS) ; // send 90h + m_spi.write(DUMMY) ; // send DUMMY1 + m_spi.write(DUMMY) ; // send DUMMY2 + m_spi.write(0) ; // send address=0x00 to get Manu ID 1st. + data= m_spi.write(DUMMY) ; // dumy to get Manufacturer ID= C2h out + data32 = data32 | data ; // put in 32b reg + data= m_spi.write(DUMMY) ; // dummy to get 2nd Byte = Device ID out + data32 = (data32 << 8) | data ; // shift and put in reg + m_cs = CS_HIGH ; + return( data32 ) ; +} + +uint8_t SPI_MX25R::readRES(void) +{ + uint8_t data; + m_cs = CS_LOW ; + m_spi.write(CMD_RES) ; // send ABh + m_spi.write(DUMMY) ; // send DUMMY1 + m_spi.write(DUMMY) ; // send DUMMY2 + m_spi.write(DUMMY) ; // send DUMMY3 + data= m_spi.write(DUMMY) ; // dumy to get Electronic Sig. out + m_cs = CS_HIGH ; + return( data ) ; +} + void SPI_MX25R::programPage(int addr, uint8_t *data, int numData) { int i ; - m_cs = 0 ; + m_cs = CS_LOW ; m_spi.write(CMD_PP) ; // Program Page 02h m_spi.write((addr >> 16)&0xFF) ; // adr 23:16 m_spi.write((addr >> 8)&0xFF) ; // adr 15:8 @@ -180,18 +187,26 @@ for (i = 0 ; i < numData ; i++ ) { // data = 00, 01, 02, .. to FEh, FFh = all 256 Bytes in 1 page. m_spi.write(data[i]) ; } - m_cs = 1 ; + m_cs = CS_HIGH ; // poll in main } - + void SPI_MX25R::writeStatusreg(int addr) // Write SR cmd 01h + 3B data { - m_cs = 0 ; + m_cs = CS_LOW ; m_spi.write(CMD_WRSR) ; // Write SR cmd 01h m_spi.write((addr >> 16)&0xFF) ; // address m_spi.write((addr >> 8)&0xFF) ; m_spi.write(addr & 0xFF) ; - m_cs = 1 ; + m_cs = CS_HIGH ; +} + +void SPI_MX25R::writeSecurityreg(int addr) // WRSCUR cmd 2Fh + 1B data +{ + m_cs = CS_LOW ; + m_spi.write(CMD_WRSCUR) ; // Write SR cmd 01h + m_spi.write(addr & 0xFF) ; + m_cs = CS_HIGH ; } void SPI_MX25R::blockErase(int addr) // 64KB Block Erase @@ -200,91 +215,91 @@ data[0] = (addr >> 16) & 0xFF ; data[1] = (addr >> 8) & 0xFF ; data[2] = (addr & 0xFF) ; - m_cs = 0 ; + m_cs = CS_LOW ; m_spi.write(CMD_BE) ; - for (int i = 0 ; i < 3 ; i++ ) { + for (int i = 0 ; i < 3 ; i++ ) { // Address setting m_spi.write(data[i]) ; } - m_cs = 1 ; + m_cs = CS_HIGH ; // poll in main } - + void SPI_MX25R::blockErase32KB(int addr) // 32KB Block Erase { uint8_t data[3] ; data[0] = (addr >> 16) & 0xFF ; data[1] = (addr >> 8) & 0xFF ; data[2] = (addr & 0xFF) ; - m_cs = 0 ; + m_cs = CS_LOW ; m_spi.write(CMD_32KBE) ; - for (int i = 0 ; i < 3 ; i++ ) { + for (int i = 0 ; i < 3 ; i++ ) { // Address Setting m_spi.write(data[i]) ; } - m_cs = 1 ; + m_cs = CS_HIGH ; // poll in main } - + void SPI_MX25R::sectorErase(int addr) // 4KB Sector Erase { uint8_t data[3] ; data[0] = (addr >> 16) & 0xFF ; data[1] = (addr >> 8) & 0xFF ; data[2] = (addr & 0xFF) ; - m_cs = 0 ; + m_cs = CS_LOW ; m_spi.write(CMD_SE) ; - for (int i = 0 ; i < 3 ; i++ ) { + for (int i = 0 ; i < 3 ; i++ ) { // Address Setting m_spi.write(data[i]) ; } - m_cs = 1 ; + m_cs = CS_HIGH ; // poll in main } - + void SPI_MX25R::chipErase(void) // Chip Erase { - m_cs = 0 ; + m_cs = CS_LOW ; m_spi.write(CMD_CE) ; - m_cs = 1 ; + m_cs = CS_HIGH ; // poll in main } - + uint8_t SPI_MX25R::read8(int addr) // Single Byte Read { uint8_t data ; - m_cs = 0 ; + m_cs = CS_LOW ; m_spi.write(CMD_READ) ; // send 03h m_spi.write((addr >> 16)&0xFF) ; m_spi.write((addr >> 8)&0xFF) ; m_spi.write(addr & 0xFF) ; - data = m_spi.write(addr & 0xFF) ; // write data is dummy - m_cs = 1 ; + data = m_spi.write(DUMMY) ; // write data is dummy + m_cs = CS_HIGH ; return( data ) ; // return 1 byte } - -uint8_t SPI_MX25R::readSFDP(int addr) // Single Byte Read + +uint8_t SPI_MX25R::readSFDP(int addr) // Read SFDP { uint8_t data ; - m_cs = 0 ; + m_cs = CS_LOW ; m_spi.write(CMD_RDSFDP) ; // send cmd 5Ah - m_spi.write((addr >> 16)&0xFF) ; // address[23:16] + m_spi.write((addr >> 16)&0xFF) ; // address[23:16] m_spi.write((addr >> 8)&0xFF) ; // address[15:8] m_spi.write(addr & 0xFF) ; // address[7:0] - m_spi.write(0x00 & 0xFF) ; // dummy cycle - data = m_spi.write(addr & 0xFF) ; // return 1 byte - m_cs = 1 ; + m_spi.write(DUMMY) ; // dummy cycle + data = m_spi.write(DUMMY) ; // return 1 byte + m_cs = CS_HIGH ; + return( data ) ; +} + +uint8_t SPI_MX25R::readFREAD(int addr) // x1 Fast Read Data Byte +{ + uint8_t data ; + m_cs = CS_LOW ; + m_spi.write(CMD_FREAD) ; // send cmd 0BH + m_spi.write((addr >> 16)&0xFF) ; // address[23:16] + m_spi.write((addr >> 8)&0xFF) ; // address[15:8] + m_spi.write(addr & 0xFF) ; // address[7:0] + m_spi.write(DUMMY) ; // dummy cycle + data = m_spi.write(DUMMY) ; // return 1 byte + m_cs = CS_HIGH ; return( data ) ; } -uint8_t SPI_MX25R::readFREAD(int addr) // Single Byte Read -{ - uint8_t data ; - m_cs = 0 ; - m_spi.write(CMD_FREAD) ; // send cmd 0Bh - m_spi.write((addr >> 16)&0xFF) ; // address[23:16] - m_spi.write((addr >> 8)&0xFF) ; // address[15:8] - m_spi.write(addr & 0xFF) ; // address[7:0] - m_spi.write(0x00 & 0xFF) ; // dummy cycle - data = m_spi.write(addr & 0xFF) ; // return 1 byte - m_cs = 1 ; - return( data ) ; -} -