File list (Check if you may need any files):
pwm_source
..........\pwm_hw
..........\......\pwm_avalon_interface.v
..........\......\pwm_register_file.v
..........\......\pwm_task_logic.v
..........\pwm_sw
..........\......\HAL
..........\......\...\inc
..........\......\...\...\altera_avalon_pwm_routines.h
..........\......\...\src
..........\......\...\...\altera_avalon_pwm_routines.c
..........\......\inc
..........\......\...\altera_avalon_pwm_regs.h
..........\......\test_software
..........\......\.............\hello_altera_avalon_pwm.c