IXDN0037 datasheet(18/31 Pages) IXYS

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Ballast Demonstrator User Guide

-17

7629A–AVR–04/06

5.1

Main_AT8xEB5114_fluo_demo.c

This file executes all the peripherals initializations and then schedules the different con-

trol tasks.

The ADC state machine is included in this file. The ADC state machine is controlled via

interrupts.

5.1.1

ADC STATE

MACHINE

The ADC state machine functional diagram is shown below:

Figure 5-2.

ADC state machine diagram

The different states are outlined below:

ADC_OFF

The ADC was previously off, this is the first conversion and is not necessarily valid.

Start the first V_HAVERSINE_CONV conversion.

V_HAVERSINE_CONV

Get back the v_haversine result.

Start the V_BUS_CONV next conversion.

V_BUS_CONV

Get back the v_bus result.

Start the V_HAVERSINE_CONV, the TEMPERATURE_CONV, or the V_LAMP_CONV

conversion depending on g_time_waiting_since_latest_temperature_conv.

TEMPERATURE_CONV

Get back the temperature_result.

Start the V_LAMP_CONV conversion.

V_LAMP_CONV

Get back the v_lamp result.

V_HAVERSINE_CONV

TEMPERATURE_CONV

V_BUS_CONV

ADC_OFF

g_time_waiting_since_latest_temperature_conv >=

TIME_TO_WAIT_BETWEEN_TWO_TEMPERATURE_CONV

V_LAMP_CONV

I_LAMP_CONV

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