User's Manual

Firmware Files

LED Lighting Control using the MC9S08AW60, Rev. 1

Freescale Semiconductor 27

3.4 Firmware Files

Below is a list of the C files in the firmware

Main.c

• Programs entry point and determination of operation mode, i.e. PC control mode or standalone

operation mode

• System initialization

• Common functions used in different firmware modules

Menu.c

• Takes care of high level user interface communication with the PC host.

• Interprets the received PC commands or data and initiate the corresponding action. The user

interface menu contents can be modified or edited in this file.

SCI.c

• Takes care of low level SCI hardware for communication between the PC. Functions that

accessing the SCI registers are included in this file.

• String management for input and output functions used in the Menu.c

ISR.c

• Interrupt services routines for different hardware modules

• Timer 1 is used for the PWM channels for the three RGB output color

• Timer 2 is used for generating a periodical interrupt that used in the demonstration display feature

• IRQ interrupts for enabling or disabling of demonstration display in the standalone operation mode.

• KBI interrupts for on board buttons detection

• Functions for generating certain display effects are included in this file

Keyinput.c

• For operation of standalone mode without the host PC