DocID024513 Rev 1

11/32

UM1632

Function description

3.1.2

DALIslave.c

These files contain the reception and transmission routines for building the DALI packet

from received bits according to the DALI specification. They also contain the initialization

functions for the DALI I/O pin driver layer. The functions of these routines are given below in

bold.

bool get_DALIIN(),

bool get_DALIOUT(),

void set_DALIOUT(pin_value)

This set of functions:

•

Obtains/sets the logical level from/to the DALI pin (DALI Rx and DALI Tx)

•

Accepts the hardware implementation of the driver (its eventual inversion)

Table 3. Void init_DALI (port_out, pin_out, invert_out, port_in, pin_in, invert_in,

DataReceivedFunction, ErrorFunction, RTC_1ms_Function)

Function name

Init_DALI

Description

•

Initializes the DALI I/O pin driver layer

•

Defines the DALI RX and DALI TX pins and their inversion. This

depends on the physical connection to the DALI bus (i.e. the

converter between the DALI bus and the I/O pins).

•

Defines the callback functions:

–

if the complete DALI packet is received (address,

command/data)

–

if an error occurs on the DALI bus (loss of idle voltage)

–

if 1 ms callback timer ticks are generated for the DALI stack

layer

•

After this function is called, the I/O pin driver is able to receive DALI

packets and call upper layer callbacks. This function should be called

as the last initialization function (after DALI stack initialization).

Input Parameter

GPIO_TypeDef* port_out

U16 pin_out

U8 invert_out

GPIO_TypeDef* port_in

U16 pin_in

U8 invert_in

TDataReceivedCallback DataReceivedFunction

TErrorCallback ErrorFunction

TRTC_1ms_Callback RTC_1ms_Function

Output Parameter

None

Return

None