SCOPE Solution

CROSSFADE

SCOPE ACT 3

In-game screenshot of CROSSFADE
In-game view
FamilySCOPE Graph0.441 Difficulty0.441 Ring03 IDsc_a3_05_crossfade

Prerequisites

REPEATER

Unlocks

WRONG OP

Reference firmware sc_a3_05_crossfade locked
Par power173 Par lines12 Par chips2

Objective

Two lines trade brightness across a four step fade.

Board Data

  • Window: 64
  • Pins: p0 OUT, p1 OUT
  • Channels: p0 ANALOG label=CH1_p0_DAC, p1 ANALOG label=CH2_p1_DAC
  • Peripherals: DAC data=p0 label=DAC_p0, DAC data=p1 label=DAC_p1
Firmware Solution 
loop:
      mov  r0, 0
      mov  r1, 240
fade:
      out  p0, r0
      out  p1, r1
      slp  3
      add  r0, 80
      sub  r1, 80
      cmp  r0, 64
      jnz  fade
      jmp  loop
Board Definition 
# CROSSFADE. ACT 3. SCOPE waveform board.
# TITLE CROSSFADE
# OBJECTIVE Two lines trade brightness across a four step fade.
ID sc_a3_05_crossfade
WINDOW 64
DIR p0 OUT
DIR p1 OUT
PERIPH DAC data=p0 label=DAC_p0
PERIPH DAC data=p1 label=DAC_p1
CHAN p0 ANALOG label=CH1_p0_DAC
CHAN p1 ANALOG label=CH2_p1_DAC
PAR power=173 lines=12 chips=2