| nRF5 SDK v12.0.0 |

Choose documentation: | nRF5 SDK | S130 SoftDevice API | S132 SoftDevice API | S212 SoftDevice API | S332 SoftDevice API

All Data Structures Functions Variables Typedefs Enumerations Enumerator Groups Pages
Macros
TWIS peripheral driver configuration
TWIS driver

## Macros
#define | TWIS_ENABLED
| Set to 1 to activate. 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 * Following options are avaiable: More...
#define | TWIS_DEFAULT_CONFIG_SDA_PULL
| SDA pin pull configuration * Following options are avaiable: More...
#define | TWIS_DEFAULT_CONFIG_IRQ_PRIORITY
| Interrupt priority. More...
#define | TWIS0_ENABLED
| Enable TWIS0 instance * Set to 1 to activate. More...
#define | TWIS1_ENABLED
| Enable TWIS1 instance * Set to 1 to activate. 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...

## 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 avaiable:

- 0 - 0 (highest)
- 1 - 1
- 2 - 2
- 3 - 3
- 4 - 4 (except nRF51 family)
- 5 - 5 (except nRF51 family)
- 6 - 6 (except nRF51 family)
- 7 - 7 (except nRF51 family)

Note
  This is an NRF_CONFIG macro.

#define TWIS_DEFAULT_CONFIG_SCL_PULL

SCL pin pull configuration * Following options are avaiable:

- 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 avaiable:

- 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.