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QSPI HAL
Data Structures | Typedefs | Enumerations | Functions

QSPI HAL
[Hal]

Data Structures

struct  qspi_command
 QSPI command. More...

Typedefs

typedef struct qspi_s qspi_t
 QSPI HAL object.
typedef enum qspi_bus_width qspi_bus_width_t
 QSPI Bus width.
typedef enum qspi_address_size qspi_address_size_t
 Address size in bits.
typedef enum qspi_alt_size qspi_alt_size_t
 Alternative size in bits.
typedef struct qspi_command qspi_command_t
 QSPI command.
typedef enum qspi_status qspi_status_t
 QSPI return status.
typedef struct qspi_s qspi_t
 QSPI HAL object.
typedef enum qspi_bus_width qspi_bus_width_t
 QSPI Bus width.
typedef enum qspi_address_size qspi_address_size_t
 Address size in bits.
typedef enum qspi_alt_size qspi_alt_size_t
 Alternative size in bits.
typedef struct qspi_command qspi_command_t
 QSPI command.
typedef enum qspi_status qspi_status_t
 QSPI return status.

Enumerations

enum  qspi_bus_width
 

QSPI Bus width.

More...
enum  qspi_address_size
 

Address size in bits.

More...
enum  qspi_alt_size
 

Alternative size in bits.

More...
enum  qspi_status {
  QSPI_STATUS_ERROR = -1, QSPI_STATUS_INVALID_PARAMETER = -2, QSPI_STATUS_OK = 0, QSPI_STATUS_ERROR = -1,
  QSPI_STATUS_INVALID_PARAMETER = -2, QSPI_STATUS_OK = 0
}
 

QSPI return status.

More...
enum  qspi_bus_width
 

QSPI Bus width.

More...
enum  qspi_address_size
 

Address size in bits.

More...
enum  qspi_alt_size
 

Alternative size in bits.

More...
enum  qspi_status {
  QSPI_STATUS_ERROR = -1, QSPI_STATUS_INVALID_PARAMETER = -2, QSPI_STATUS_OK = 0, QSPI_STATUS_ERROR = -1,
  QSPI_STATUS_INVALID_PARAMETER = -2, QSPI_STATUS_OK = 0
}
 

QSPI return status.

More...

Functions

qspi_status_t qspi_init (qspi_t *obj, PinName io0, PinName io1, PinName io2, PinName io3, PinName sclk, PinName ssel, uint32_t hz, uint8_t mode)
 Initialize QSPI peripheral.
qspi_status_t qspi_free (qspi_t *obj)
 Deinitilize QSPI peripheral.
qspi_status_t qspi_frequency (qspi_t *obj, int hz)
 Set the QSPI baud rate.
qspi_status_t qspi_write (qspi_t *obj, const qspi_command_t *command, const void *data, size_t *length)
 Send a command and block of data.
qspi_status_t qspi_command_transfer (qspi_t *obj, const qspi_command_t *command, const void *tx_data, size_t tx_size, void *rx_data, size_t rx_size)
 Send a command (and optionally data) and get the response.
qspi_status_t qspi_read (qspi_t *obj, const qspi_command_t *command, void *data, size_t *length)
 Receive a command and block of data.

Typedef Documentation

typedef enum qspi_address_size qspi_address_size_t

Address size in bits.

typedef enum qspi_address_size qspi_address_size_t

Address size in bits.

typedef enum qspi_alt_size qspi_alt_size_t

Alternative size in bits.

typedef enum qspi_alt_size qspi_alt_size_t

Alternative size in bits.

typedef enum qspi_bus_width qspi_bus_width_t

QSPI Bus width.

Some parts of commands provide variable bus width

typedef enum qspi_bus_width qspi_bus_width_t

QSPI Bus width.

Some parts of commands provide variable bus width

typedef struct qspi_command qspi_command_t

QSPI command.

Defines a frame format. It consists of instruction, address, alternative, dummy count and data

typedef struct qspi_command qspi_command_t

QSPI command.

Defines a frame format. It consists of instruction, address, alternative, dummy count and data

typedef enum qspi_status qspi_status_t

QSPI return status.

typedef enum qspi_status qspi_status_t

QSPI return status.

typedef struct qspi_s qspi_t

QSPI HAL object.

Definition at line 39 of file cmsis/BUILD/mbed/hal/qspi_api.h.

typedef struct qspi_s qspi_t

QSPI HAL object.

Definition at line 39 of file hal/qspi_api.h.

Enumeration Type Documentation

enum qspi_address_size

Address size in bits.

Definition at line 53 of file cmsis/BUILD/mbed/hal/qspi_api.h.

enum qspi_address_size

Address size in bits.

Definition at line 53 of file hal/qspi_api.h.

enum qspi_alt_size

Alternative size in bits.

Definition at line 62 of file hal/qspi_api.h.

enum qspi_alt_size

Alternative size in bits.

Definition at line 62 of file cmsis/BUILD/mbed/hal/qspi_api.h.

enum qspi_bus_width

QSPI Bus width.

Some parts of commands provide variable bus width

Definition at line 45 of file hal/qspi_api.h.

enum qspi_bus_width

QSPI Bus width.

Some parts of commands provide variable bus width

Definition at line 45 of file cmsis/BUILD/mbed/hal/qspi_api.h.

enum qspi_status

QSPI return status.

Enumerator:
QSPI_STATUS_ERROR 

Generic error >

QSPI_STATUS_INVALID_PARAMETER 

The parameter is invalid >

QSPI_STATUS_OK 

Function executed sucessfully >

QSPI_STATUS_ERROR 

Generic error >

QSPI_STATUS_INVALID_PARAMETER 

The parameter is invalid >

QSPI_STATUS_OK 

Function executed sucessfully >

Definition at line 99 of file hal/qspi_api.h.

enum qspi_status

QSPI return status.

Enumerator:
QSPI_STATUS_ERROR 

Generic error >

QSPI_STATUS_INVALID_PARAMETER 

The parameter is invalid >

QSPI_STATUS_OK 

Function executed sucessfully >

QSPI_STATUS_ERROR 

Generic error >

QSPI_STATUS_INVALID_PARAMETER 

The parameter is invalid >

QSPI_STATUS_OK 

Function executed sucessfully >

Definition at line 99 of file cmsis/BUILD/mbed/hal/qspi_api.h.

Function Documentation

qspi_status_t qspi_command_transfer ( qspi_t *  obj,
const qspi_command_t *  command,
const void *  tx_data,
size_t  tx_size,
void *  rx_data,
size_t  rx_size 
)

Send a command (and optionally data) and get the response.

Can be used to send/receive device specific commands

Parameters:
objQSPI object
commandQSPI command
tx_dataTX buffer
tx_sizeTX buffer length in bytes
rx_dataRX buffer
rx_sizeRX buffer length in bytes
Returns:
QSPI_STATUS_OK if the data has been succesfully sent QSPI_STATUS_INVALID_PARAMETER if invalid parameter found QSPI_STATUS_ERROR otherwise
qspi_status_t qspi_free ( qspi_t *  obj )

Deinitilize QSPI peripheral.

It should release pins that are associated with the QSPI object, and disable clocks for QSPI peripheral module that was associated with the object

Parameters:
objQSPI object
Returns:
QSPI_STATUS_OK if deinitialisation successfully executed QSPI_STATUS_INVALID_PARAMETER if invalid parameter found QSPI_STATUS_ERROR otherwise
qspi_status_t qspi_frequency ( qspi_t *  obj,
int  hz 
)

Set the QSPI baud rate.

Actual frequency may differ from the desired frequency due to available dividers and the bus clock Configures the QSPI peripheral's baud rate

Parameters:
objThe SPI object to configure
hzThe baud rate in Hz
Returns:
QSPI_STATUS_OK if frequency was set QSPI_STATUS_INVALID_PARAMETER if invalid parameter found QSPI_STATUS_ERROR otherwise
qspi_status_t qspi_init ( qspi_t *  obj,
PinName  io0,
PinName  io1,
PinName  io2,
PinName  io3,
PinName  sclk,
PinName  ssel,
uint32_t  hz,
uint8_t  mode 
)

Initialize QSPI peripheral.

It should initialize QSPI pins (io0-io3, sclk and ssel), set frequency, clock polarity and phase mode. The clock for the peripheral should be enabled

Parameters:
objQSPI object
io0Data pin 0
io1Data pin 1
io2Data pin 2
io3Data pin 3
sclkThe clock pin
sselThe chip select pin
hzThe bus frequency
modeClock polarity and phase mode (0 - 3)
Returns:
QSPI_STATUS_OK if initialisation successfully executed QSPI_STATUS_INVALID_PARAMETER if invalid parameter found QSPI_STATUS_ERROR otherwise
qspi_status_t qspi_read ( qspi_t *  obj,
const qspi_command_t *  command,
void *  data,
size_t *  length 
)

Receive a command and block of data.

Parameters:
objQSPI object
commandQSPI command
dataRX buffer
[in,out]lengthin - RX buffer length in bytes, out - number of bytes read
Returns:
QSPI_STATUS_OK if data has been succesfully received QSPI_STATUS_INVALID_PARAMETER if invalid parameter found QSPI_STATUS_ERROR otherwise
qspi_status_t qspi_write ( qspi_t *  obj,
const qspi_command_t *  command,
const void *  data,
size_t *  length 
)

Send a command and block of data.

Parameters:
objQSPI object
commandQSPI command
dataTX buffer
[in,out]lengthin - TX buffer length in bytes, out - number of bytes written
Returns:
QSPI_STATUS_OK if the data has been succesfully sent QSPI_STATUS_INVALID_PARAMETER if invalid parameter found QSPI_STATUS_ERROR otherwise
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