Create tap tempo ISR branching logic

2026-01-09 13:48:26 +01:00
parent 447865df4e
commit 5357bcfaaf
1 changed files with 20 additions and 0 deletions
@@ -2,3 +2,23 @@
    ldi     r20,        \target_high
    ldi     r19,        \target_low
 .endm
 ticks_to_bpm:
    ret
 tap_tempo_isr:
    ; Timer not started yet (first button press after expiration)
    lds     r16,    timer0_overflow_count
    cp      r16,    r0
    breq    start_timer
    ; Timer started
    ; wait for next press
    ; better to update at each press, unless expiration
    rcall   ticks_to_bpm
    reti
 start_timer:
    rcall   timer0_start
    reti