From 825c038904c05f33665cc3dda340e773cae18d01 Mon Sep 17 00:00:00 2001 From: "rick.chan" Date: Wed, 17 Mar 2021 11:52:56 +0800 Subject: [PATCH] =?UTF-8?q?=E8=A1=A5=E5=85=85=20GPIO=20=E6=8E=A7=E5=88=B6?= =?UTF-8?q?=E5=86=85=E5=AE=B9.?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: rick.chan --- .../Linux/User/Modules/GPIO/用户态_GPIO_操作指南.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Software/Development/OperatingSystem/Linux/User/Modules/GPIO/用户态_GPIO_操作指南.md b/Software/Development/OperatingSystem/Linux/User/Modules/GPIO/用户态_GPIO_操作指南.md index e945029..771a590 100644 --- a/Software/Development/OperatingSystem/Linux/User/Modules/GPIO/用户态_GPIO_操作指南.md +++ b/Software/Development/OperatingSystem/Linux/User/Modules/GPIO/用户态_GPIO_操作指南.md @@ -52,6 +52,8 @@ echo “rising” > edge echo “falling” > edge # 边沿触发中断 echo “both” > edge +# 翻转电平，输入非零的数即上升沿变为下降沿 +echo 3 > active_low cd .. # 删除导出的 GPIO echo 167 > unexport