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authorKeith Packard <keithp@keithp.com>2011-05-20 01:35:49 -0700
committerKeith Packard <keithp@keithp.com>2011-05-20 01:35:49 -0700
commitd67df9a6dc76ba52f32fa4c0b141825b97a2fbc8 (patch)
tree02fc0fed6c08ad54afe2a1ed9161132fb2f91d88 /src-avr/ao_timer.c
parent92fcfc2e8e5a9cb789c8d4be36d38c1a73ddd413 (diff)
src-avr: Add 'sleep_cpu' to reduce power usage while idle
Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'src-avr/ao_timer.c')
-rw-r--r--src-avr/ao_timer.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src-avr/ao_timer.c b/src-avr/ao_timer.c
index cc48dd2a..f0918a7d 100644
--- a/src-avr/ao_timer.c
+++ b/src-avr/ao_timer.c
@@ -162,6 +162,9 @@ ao_clock_init(void)
PLLCSR |= (1 << PLLE);
while (!(PLLCSR & (1 << PLOCK)))
;
+
+ set_sleep_mode(SLEEP_MODE_IDLE);
+ sleep_enable();
#else
/* Switch system clock to crystal oscilator */
CLKCON = (CLKCON & ~CLKCON_OSC_MASK) | (CLKCON_OSC_XTAL);