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-rw-r--r--wirish/HardwareTimer.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/wirish/HardwareTimer.cpp b/wirish/HardwareTimer.cpp
index e5d3dc8..bd61a89 100644
--- a/wirish/HardwareTimer.cpp
+++ b/wirish/HardwareTimer.cpp
@@ -101,7 +101,7 @@ uint16 HardwareTimer::setPeriod(uint32 microseconds) {
}
uint32 period_cyc = microseconds * CYCLES_PER_MICROSECOND;
- uint16 prescaler = (uint16)(period_cyc / MAX_RELOAD);
+ uint16 prescaler = (uint16)(period_cyc / MAX_RELOAD + 1);
uint16 overflow = (uint16)round(period_cyc / prescaler);
this->setPrescaleFactor(prescaler);
this->setOverflow(overflow);