TWIS peripheral driver - legacy layer configuration

Macros
#define	TWIS_ENABLED
	Set to 1 to activate. More...
#define	TWIS0_ENABLED
	Enable TWIS0 instance. More...
#define	TWIS1_ENABLED
	Enable TWIS1 instance. More...
#define	TWIS_ASSUME_INIT_AFTER_RESET_ONLY
	Assume that any instance would be initialized only once. More...
#define	TWIS_NO_SYNC_MODE
	Remove support for synchronous mode. More...
#define	TWIS_DEFAULT_CONFIG_ADDR0
	Address0. More...
#define	TWIS_DEFAULT_CONFIG_ADDR1
	Address1. More...
#define	TWIS_DEFAULT_CONFIG_SCL_PULL
	SCL pin pull configuration. More...
#define	TWIS_DEFAULT_CONFIG_SDA_PULL
	SDA pin pull configuration. More...
#define	TWIS_DEFAULT_CONFIG_IRQ_PRIORITY
	Interrupt priority. More...

Detailed Description

Macro Definition Documentation

#define TWIS0_ENABLED

Enable TWIS0 instance.

Set to 1 to activate.

Note

This is an NRF_CONFIG macro.

#define TWIS1_ENABLED

Enable TWIS1 instance.

Set to 1 to activate.

Note

This is an NRF_CONFIG macro.

#define TWIS_ASSUME_INIT_AFTER_RESET_ONLY

Assume that any instance would be initialized only once.

Optimization flag. Registers used by TWIS are shared by other peripherals. Normally, during initialization driver tries to clear all registers to known state before doing the initialization itself. This gives initialization safe procedure, no matter when it would be called. If you activate TWIS only once and do never uninitialize it - set this flag to 1 what gives more optimal code.

Set to 1 to activate.

Note

This is an NRF_CONFIG macro.

#define TWIS_DEFAULT_CONFIG_ADDR0

Address0.

Note

This is an NRF_CONFIG macro.

#define TWIS_DEFAULT_CONFIG_ADDR1

Address1.

Note

This is an NRF_CONFIG macro.

#define TWIS_DEFAULT_CONFIG_IRQ_PRIORITY

Interrupt priority.

Priorities 0,2 (nRF51) and 0,1,4,5 (nRF52) are reserved for SoftDevice

Following options are available:

• 0 - 0 (highest)
• 1 - 1
• 2 - 2
• 3 - 3
• 4 - 4 (Applicable devices only)
• 5 - 5 (Applicable devices only)
• 6 - 6 (Applicable devices only)
• 7 - 7 (Applicable devices only)

Note

This is an NRF_CONFIG macro.

#define TWIS_DEFAULT_CONFIG_SCL_PULL

SCL pin pull configuration.

Following options are available:

• 0 - Disabled
• 1 - Pull down
• 3 - Pull up

Note

This is an NRF_CONFIG macro.

#define TWIS_DEFAULT_CONFIG_SDA_PULL

SDA pin pull configuration.

Following options are available:

• 0 - Disabled
• 1 - Pull down
• 3 - Pull up

Note

This is an NRF_CONFIG macro.

#define TWIS_ENABLED

Set to 1 to activate.

Note

This is an NRF_CONFIG macro.

#define TWIS_NO_SYNC_MODE

Remove support for synchronous mode.

Synchronous mode would be used in specific situations. And it uses some additional code and data memory to safely process state machine by polling it in status functions. If this functionality is not required it may be disabled to free some resources.

Set to 1 to activate.

Note

This is an NRF_CONFIG macro.