Datasheet

EXAMPLE 3: USING MORE THAN ONE ENGINE AND NESTED LOOPS (LOOP INSIDE A LOOP)

This program below shows how to use all the three engines simultaneously. The engines are used to create a police beacon-type

light effect. Hint: To see the effect of separate engines, start/stop engines separately using Engine 1, Engine 2 and Engine 3 controls

instead of the Master control.

blue1: dw 0000000000000010b ;Map blue LED on D2.

blue2: dw 0000000000100000b ;Map blue LED on D6.

blue3: dw 0000000000001000b ;Map blue LED on D4.

red_led: dw 0000000010000000b ;Map red LED on D8.

.segment program1 ;Program for blue LEDs on D2 and D6.

mux_map_start blue1 ;Mapping table start address.

mux_ld_end blue2 ;Mapping table end address.

loop2:

loop1: set_pwm 255

wait 0.1

set_pwm 0

wait 0.05

branch 1, loop1

wait 0.2

mux_map_next

branch 3, loop2 ;Note nested loop (loop1 is within loop2).

loop4:

loop3: set_pwm 255

wait 0.05

set_pwm 0

wait 0.05

branch 5, loop3

mux_map_next

branch 3, loop4

rst

.segment program2 ;Program for red LED on D8.

mux_map_addr red_led ;Red LED mapping.

wait 0.45

ramp 0.5, 255 ;PWM 0%->100% in 0.5 second.

ramp 1, -255 ;PWM 100%->0% in 1 second.

rst

.segment program3 ;Program for blue LED on D4.

mux_map_start blue3 ;Mapping table start address.

set_pwm 255

wait 0.05

set_pwm 0

wait 0.2

set_pwm 255

wait 0.05

set_pwm 0

wait 0.45

rst

AN-2227 - LP5523 Evaluation Kit