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-rw-r--r--fw/fe310/eos/timer.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/fw/fe310/eos/timer.h b/fw/fe310/eos/timer.h
index 2ac53f7..99ffa7a 100644
--- a/fw/fe310/eos/timer.h
+++ b/fw/fe310/eos/timer.h
@@ -20,3 +20,4 @@ void eos_timer_clear(unsigned char evt);
void eos_time_sleep(uint32_t msec);
uint64_t eos_time_get_tick(void);
+uint32_t eos_time_since(uint32_t start);