IXDN0036 datasheet(23/41 Pages) IXYS

23 / 41 page

ATPWMx Demonstrator Software

6-24

ATAVRFBKIT / EVLD001 User Guide

7597A–AVR–02/06

Figure 6-3. Control State Machine

The different states are outlined below:

INIT_SELECT_CONTROL_MEANS

The DALI bus is initialized in order to be able to receive a DALI message in case this

bus is used as the control means for the ballast. In case a DALI message arrives at

once, g_control_means is set to USE_DALI_CONTROL, and the gv_control_state is set

to DALI_MESSAGE_EXPLOITATION, otherwise gv_co ntrol_state is set to

WAIT_FOR_FIRST_COMMAND.

INIT_SELECT_CONTROL_MEANS

CONTROL_OFF

WAIT_FOR_FIRST_COMMAND

ZERO_TEN_VOLT_CONTROL

SWISS_CONTROL

INIT_DALI

DALI_MESSAGE_EXPLOITATION

WAIT_FOR_DALI_TX_COMPLETED

WAIT_FOR_DALI_MESSAGE

SET_DALI_IN_RX_MODE

No immediate DALI message

DALI message

PINE2 = = 0

Swiss command

gv_request_lamp_off = = 1 during V_LAMP_CONV or

I_LAMP_CONV in ADC state machine in ADC state machine

DALI message

g_control_means = =

USE_ZERO_TEN_VOLT_CONTROL

g_control_means = =

USE_SWISS_CONTROL

g_control_means = =

USE_DALI_CONTROL

DALI message

No DALI message

DALI expects an answer

DALI TX completed

IXDN0036 Datasheet(PDF) 23 Page - IXYS Corporation