diff options
Diffstat (limited to 'spaghetti-monster/fsm-ramping.c')
| -rw-r--r-- | spaghetti-monster/fsm-ramping.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/spaghetti-monster/fsm-ramping.c b/spaghetti-monster/fsm-ramping.c index d6a14ef..503f90f 100644 --- a/spaghetti-monster/fsm-ramping.c +++ b/spaghetti-monster/fsm-ramping.c @@ -151,6 +151,32 @@ void set_level(uint8_t level) { #endif #endif // ifdef USE_TINT_RAMPING + + #ifdef USE_DYN_PWM + // pulse frequency modulation, a.k.a. dynamic PWM + PWM1_TOP = PWM_GET(pwm_tops, level); + #ifdef PMW2_TOP + PWM2_TOP = PWM_GET(pwm_tops, level); + #endif + #ifdef PMW3_TOP + PWM3_TOP = PWM_GET(pwm_tops, level); + #endif + + // reset the phase, to avoid random long pulses + // see attiny1634 reference manual page 103 for a warning about + // the timing of changing the TOP value (section 12.8.4) + // (we don't care about being phase-correct, so the brute-force + // approach can be used to reset it here) + #ifdef PWM1_CNT + PWM1_CNT = 0; + #endif + #ifdef PWM2_CNT + PWM2_CNT = 0; + #endif + #ifdef PWM3_CNT + PWM3_CNT = 0; + #endif + #endif } #endif // ifdef OVERRIDE_SET_LEVEL #ifdef USE_DYNAMIC_UNDERCLOCKING |