查看Cores:wiring shift.c的源代码
←
Cores:wiring shift.c
跳转至:
导航
、
搜索
因为以下原因,你没有权限编辑本页:
你刚才请求的操作只对属于该用户组的用户开放:
用户
您可以查看并复制此页面的源代码:
<font color="quartz" size ="+2"> '''shift.c ''' </font> <pre style="color:royalblue"> /* wiring_shift.c - shiftOut() function Part of Arduino - http://www.arduino.cc/ Copyright (c) 2005-2006 David A. Mellis This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA $Id: wiring.c 248 2007-02-03 15:36:30Z mellis $ */ #include "wiring_private.h" uint8_t shiftIn(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder) { uint8_t value = 0; uint8_t i; for (i = 0; i < 8; ++i) { digitalWrite(clockPin, HIGH); if (bitOrder == LSBFIRST) value |= digitalRead(dataPin) << i; else value |= digitalRead(dataPin) << (7 - i); digitalWrite(clockPin, LOW); } return value; } void shiftOut(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder, uint8_t val) { uint8_t i; for (i = 0; i < 8; i++) { if (bitOrder == LSBFIRST) digitalWrite(dataPin, !!(val & (1 << i))); else digitalWrite(dataPin, !!(val & (1 << (7 - i)))); digitalWrite(clockPin, HIGH); digitalWrite(clockPin, LOW); } } </pre> ------ [[Arduino核心代码|返回核心代码首页]] 更多建议和问题欢迎反馈至 [http://www.yfrobot.com YFRobot论坛]
返回
Cores:wiring shift.c
。
导航菜单
个人工具
3.142.150.7
该IP地址的讨论
登录
名字空间
页面
讨论
不转换
变种
不转换
简体
繁體
大陆简体
香港繁體
澳門繁體
大马简体
新加坡简体
台灣正體
查看
阅读
查看源代码
查看历史
操作
搜索
导航
首页
YF-论坛提问
YFRobot-直营店
YFRobot-企业店
Arduino
Arduino之入门篇
Arduino入门教程
Arduino语法参考
Arduino库
Arduino核心代码
编程平台
Mixly库
Mind+库
MakeCode扩展
传感器系列
积木式传感器系列
黑板传感器系列
蓝板传感器系列
Micro:Bit
Micro:Bit 通用基础教程
Valon智能车
Valon-I
帮助
帮助
wiki语法参考
工具箱
链入页面
相关更改
特殊页面
页面信息