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| author | Selene ToyKeeper | 2023-11-04 11:39:05 -0600 |
|---|---|---|
| committer | Selene ToyKeeper | 2023-11-04 11:39:05 -0600 |
| commit | f9938f60e6210872592da9a851c8339a3cf258e7 (patch) | |
| tree | 70d7d4728382e4bec88848050deac3df9a848f1f /hw/hank/noctigon-k1/boost/anduril.h | |
| parent | @hank-*-boost: fixed flicker while holding button at moon (diff) | |
| download | anduril-f9938f60e6210872592da9a851c8339a3cf258e7.tar.gz anduril-f9938f60e6210872592da9a851c8339a3cf258e7.tar.bz2 anduril-f9938f60e6210872592da9a851c8339a3cf258e7.zip | |
@hank-*-boost: reduced ripple on low modes
by raising MCU clock speed to half at levels 2+
instead of the previous value of 1/4th speed
I tried full speed too, which makes ripple much smaller and faster...
but it also causes a big jump in brightness between levels 1 and 2.
My lux meter shows ~350 at 1/150 or ~500 at 2/150,
but at half speed it's ~650 at 2/150,
and at full speed it's ~1100 at 2/150.
So I went for a happy medium to balance ripple, brightness, and runtime.
Diffstat (limited to 'hw/hank/noctigon-k1/boost/anduril.h')
| -rw-r--r-- | hw/hank/noctigon-k1/boost/anduril.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/hw/hank/noctigon-k1/boost/anduril.h b/hw/hank/noctigon-k1/boost/anduril.h index cfbab16..4ea1127 100644 --- a/hw/hank/noctigon-k1/boost/anduril.h +++ b/hw/hank/noctigon-k1/boost/anduril.h @@ -41,10 +41,12 @@ #define MIN_THERM_STEPDOWN 50 #define DEFAULT_LEVEL 70 #define MAX_1x7135 150 -// always run at 1/4th speed, because 4 kHz PWM is enough for this circuit +// moon at 1/4th speed for max runtime +// the rest at half speed, to reduce ripple +// but not full speed because 8 kHz PWM is enough for this circuit // and speed changes make a big visible bump #define HALFSPEED_LEVEL 255 -#define QUARTERSPEED_LEVEL 255 +#define QUARTERSPEED_LEVEL 2 #define RAMP_SMOOTH_FLOOR 1 #define RAMP_SMOOTH_CEIL 130 |