Ballast Demonstrator User Guide

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7629A–AVR–04/06

Section 5

AT8xEB5114 Non-dimmable Software

This section of the document describes the software architecture utilizing the following

source code files and related state machines.

Main_at8xeb5114_fluo_demo.c

– ADC State Machine

Pfc_ctrl.c

– PFC State Machine

Lamp_ctrl.c

– Lamp State Machine

And their associated header files.

- main_at8xeb5114_fluo_demo.h

– Pfc_ctrl.h

–Lamp_ctrl.h

Including the following peripherals:

• TIMER0, ADC, amplifier, PWM0, and PWM1.

In order for the ballast to operate, there are two primary control systems that run simul-

taneously. The first is for the PFC control and second for the Lamp control.

Furthermore in order to work properly, the state machines require input data. This ana-

log data is provided via an auto running interrupt mode ADC state machine.

The complete software package for the application is split into the functional blocks in

the diagram shown below. While the variables are identified as follows.

•

g_ global

•

gv_global volatile

•

gs_ global static

Voltage and current variables are identified by the following examples

•

g_v or g_i

global - voltage/current

•

gv_v or gv_i

global volatile - voltage/current

•

gs_v or gs_i

global static - voltage/current