From ff51cb832f4e4d9e2c0999c7b996670cda7d003e Mon Sep 17 00:00:00 2001
From: Kirin <1370302499@qq.com>
Date: Fri, 25 Mar 2022 14:17:08 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=20`get=5Ftime=5Fus`=20?=
 =?UTF-8?q?=E7=9A=84=E7=B2=BE=E5=BA=A6=E9=97=AE=E9=A2=98?=
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---
 os/src/timer.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/os/src/timer.rs b/os/src/timer.rs
index 4f40494c..6ba55bf3 100644
--- a/os/src/timer.rs
+++ b/os/src/timer.rs
@@ -14,7 +14,7 @@ pub fn get_time() -> usize {
 
 /// get current time in microseconds
 pub fn get_time_us() -> usize {
-    time::read() / (CLOCK_FREQ / MICRO_PER_SEC)
+    (time::read() as f64 / (CLOCK_FREQ as f64 / MICRO_PER_SEC as f64)) as _
 }
 
 /// set the next timer interrupt