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authorNicolas Schodet2011-09-27 21:33:33 +0200
committerNicolas Schodet2011-09-27 21:33:33 +0200
commit390dc1eab40aa4efd429caaea47775b1fe010670 (patch)
treef43e42bd2d3a1ca4a888090bdf3911ae357a0647
parent02200f6e08a34b693257c4a628a7cf9d12cb6b35 (diff)
src/common: take code execution time into account
-rw-r--r--src/common/led.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/common/led.c b/src/common/led.c
index a8a31d7..eff2942 100644
--- a/src/common/led.c
+++ b/src/common/led.c
@@ -29,9 +29,11 @@
#include "button.h"
#include "power.h"
+/** Led display loop overhead estimation. */
+#define LED_OVERHEAD_MS (40 * 1e3 / AC_FREQ)
/** Time a led is lit. */
#define LED_UP_MS 0.05
-#define LED_DOWN_MS (0.5 - LED_UP_MS)
+#define LED_DOWN_MS (0.5 - LED_UP_MS - LED_OVERHEAD_MS)
/** Mask of used bits. */
#define LED_MASK 0b111010