Common Driver Definitions

Definitions common in all driver interfaces (Driver_Common.h) More...

Content
	Status Error Codes
	Negative return values of functions indicate errors occurred during execution.

Data Structures
struct	ARM_DRIVER_VERSION
	Driver Version. More...

Enumerations
enum	ARM_POWER_STATE {   ARM_POWER_OFF,   ARM_POWER_LOW,   ARM_POWER_FULL }
	General power states. More...

Description

Definitions common in all driver interfaces (Driver_Common.h)

The following definitions are common in all CMSIS-Driver interfaces. Refer to Common Driver Functions for a general overview.

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Data Structure Documentation

struct ARM_DRIVER_VERSION

Driver Version.

The access structure of each CMSIS-Driver provides the function GetVersion, which returns in the struct ARM_DRIVER_VERSION:

• API version, which is the version of the CMSIS-Driver specification used to implement this driver.
• Driver version, which is the source code version of the actual driver implementation.

The version is encoded as 16-bit unsigned value (uint16_t) with:

• high-byte: major version.
• low-byte: minor version.

For example, version 1.12 is encoded as 0x10C.

Data Fields
uint16_t	api	API version.
uint16_t	drv	Driver version.

Enumeration Type Documentation

enum ARM_POWER_STATE

General power states.

The access structure of each CMSIS-Driver provides the function PowerControl, which handles the power profile for a peripheral using the parameter ARM_POWER_STATE. Depending on this parameter, the peripheral will operate at full speed, detect just events, or is completely un-powered.

Refer to Function Call Sequence for more information.

Enumerator:

ARM_POWER_OFF	Power off: no operation possible.
ARM_POWER_LOW	Low Power mode: retain state, detect and signal wake-up events.
ARM_POWER_FULL	Power on: full operation at maximum performance.