📄 立宇泰嵌入式系统技术论坛-嵌入式操作系统相关-菜鸟写给菜鸟参考的44b0x_iic驱动程序.htm
字号:
<TR>
<TD class=singleborder colSpan=3 height=1></TD></TR>
<TR>
<TD colSpan=3 height=2></TD></TR></TBODY></TABLE>
<TABLE style="TABLE-LAYOUT: fixed; WORD-BREAK: break-all" height="85%"
width="95%" align=center border=0>
<TBODY>
<TR>
<TD style="FONT-SIZE: 9pt; LINE-HEIGHT: 12pt" vAlign=top width=*
height="100%"><IMG alt=发贴心情
src="立宇泰嵌入式系统技术论坛-嵌入式操作系统相关-菜鸟写给菜鸟参考的44B0X_IIC驱动程序.files/face1.gif"
align=absMiddle border=0> <B></B><BR>测试程序：<BR><BR>#include
<stdio.h><BR>#include <stdlib.h><BR>#include
<sys/types.h><BR>#include <sys/stat.h><BR>#include
<fcntl.h><BR>//#include <pthread.h><BR>#include
"i2c_test.h"<BR>#include "hardware.h"<BR><BR>void delay(U32
delay_value)<BR>{<BR> U32 i =
delay_value;<BR> while(i)
i--;<BR>}<BR><BR>int main(volatile int argc, char **volatile
argv)<BR>{<BR> U32
temp;<BR> int
fp;<BR> char buf[64] =
"ABCDEFGHIJKLMNOPQRSTUVWXYZ";<BR> char
buf_r[64] =
"ZYXWVUTSRQPONMLKJIHGFEDCBA";<BR> temp =
INTCON;printf("INTCON = 0x%x\n",
temp);<BR> temp = INTPND;printf("INTPND =
0x%x\n", temp);<BR> temp =
INTMOD;printf("INTMOD = 0x%x\n",
temp);<BR> temp = INTMSK;printf("INTMSK =
0x%x\n",
temp);<BR> <BR> fp =
open("/dev/i2c", O_RDWR);<BR> printf("fp =
%x\n", fp);<BR> if(fp ==
-1)<BR> {<BR> printf("Could
not open i2c
driver!\n");<BR> return
-1;<BR> }<BR> else
printf("i2c opened.\n");<BR> ioctl(fp, <B
style="COLOR: black; BACKGROUND-COLOR: #a0ffff">IIC</B>_SLAVE_ADDR,
1);<BR> write(fp, buf,
26);<BR> printf("Writed\n");<BR> ioctl(fp,
<B
style="COLOR: black; BACKGROUND-COLOR: #a0ffff">IIC</B>_SLAVE_ADDR,
1);<BR> read(fp, buf_r,
26);<BR> printf("Readed\n");<BR> printf("%s\n",
buf_r);<BR> close(fp);<BR> <BR> exit(0);<BR>}</TD></TR>
<TR>
<TD>
<DIV class=info></DIV></TD></TR></TBODY></TABLE></TD></TR>
<TR>
<TD class=tablebody2 vAlign=center align=middle width=175><IMG
alt=发贴IP已设置保密
src="立宇泰嵌入式系统技术论坛-嵌入式操作系统相关-菜鸟写给菜鸟参考的44B0X_IIC驱动程序.files/ip.gif"
align=absMiddle border=0> 2005-06-08 00:13</TD>
<TD class=tablebody2 vAlign=center width=*>
<TABLE cellSpacing=0 cellPadding=0 width="100%">
<TBODY>
<TR>
<TD vAlign=center align=left width=*> </TD>
<TD vAlign=bottom align=left width=130 nowarp="true"></TD>
<TD vAlign=center align=right width=170><A
href="http://www.hzlitai.com.cn/bbs/post.asp?action=edit&BoardID=3&replyID=4708&ID=954&star=1"><IMG
src="立宇泰嵌入式系统技术论坛-嵌入式操作系统相关-菜鸟写给菜鸟参考的44B0X_IIC驱动程序.files/edit.gif"
align=absMiddle border=0></A> <A class=ImgOnclick
onmouseover="showmenu(event,'','Menu_1');"><IMG
src="立宇泰嵌入式系统技术论坛-嵌入式操作系统相关-菜鸟写给菜鸟参考的44B0X_IIC驱动程序.files/topicmanage.gif"
align=absMiddle border=0></A> <A
href="http://www.hzlitai.com.cn/bbs/dispbbs.asp?BoardID=3&ID=954#top"><IMG
src="立宇泰嵌入式系统技术论坛-嵌入式操作系统相关-菜鸟写给菜鸟参考的44B0X_IIC驱动程序.files/p_up.gif"
align=absMiddle border=0></A></TD>
<TD vAlign=center
align=left></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE>
<DIV class=Menu_popup id=Menu_1 xmlns:z="#RowsetSchema"
xmlns:rs="urn:schemas-microsoft-com:rowset">
<DIV class=menuitems><A title=向管理员举报该贴
href="http://www.hzlitai.com.cn/bbs/TopicOther.asp?t=6&BoardID=3&id=954&ReplyID=4708">举报帖子</A><BR><A
href="http://www.hzlitai.com.cn/bbs/admin_postings.asp?action=dele_a&BoardID=3&replyID=4708&ID=954&star=1&userid=908">删除单贴</A><BR><A
href="http://www.hzlitai.com.cn/bbs/admin_postings.asp?action=copy_a&BoardID=3&replyID=4708&ID=954&star=1&userid=908">复制贴子</A><BR><A
href="http://www.hzlitai.com.cn/bbs/admin_postings.asp?action=isbest_a&BoardID=3&replyID=4708&ID=954&star=1&userid=908">加为精华</A><BR><A
href="http://www.hzlitai.com.cn/bbs/admin_postings.asp?action=islockpage_a&BoardID=3&replyID=4708&ID=954&star=1&userid=908">单贴屏蔽</A><BR><A
title=好评或差评，可奖励或扣除该贴用户相关分值
href="http://www.hzlitai.com.cn/bbs/admin_postings.asp?action=RewardMoney&BoardID=3&replyID=4708&ID=954&star=1">帖子评价</A><BR></DIV></DIV><A
name=4709 xmlns:z="#RowsetSchema"
xmlns:rs="urn:schemas-microsoft-com:rowset"></A>
<TABLE class=tableborder1 style="TABLE-LAYOUT: fixed; WORD-BREAK: break-all"
cellSpacing=1 cellPadding=5 align=center xmlns:z="#RowsetSchema"
xmlns:rs="urn:schemas-microsoft-com:rowset">
<TBODY>
<TR>
<TD class=tablebody1 vAlign=top width=175>
<TABLE cellSpacing=0 cellPadding=4 width="100%">
<TBODY>
<TR>
<TD style="FILTER: glow(color=white,strength=2)" vAlign=center
width=*> </TD>
<TD vAlign=center width=25><IMG alt=帅哥哟，离线，有人找我吗？
src="立宇泰嵌入式系统技术论坛-嵌入式操作系统相关-菜鸟写给菜鸟参考的44B0X_IIC驱动程序.files/ofMale.gif"></TD>
<TD vAlign=center
width=16></TD></TR></TBODY></TABLE> <IMG height=32
src="立宇泰嵌入式系统技术论坛-嵌入式操作系统相关-菜鸟写给菜鸟参考的44B0X_IIC驱动程序.files/image1.gif"
width=32><BR> <IMG
src="立宇泰嵌入式系统技术论坛-嵌入式操作系统相关-菜鸟写给菜鸟参考的44B0X_IIC驱动程序.files/level1.gif"><BR> 等级：论坛游民<BR> 文章：17<BR> 积分：277<BR> 注册：2005-04-21</TD>
<TD class=tablebody1 vAlign=top height="100%">
<TABLE height=30 width="100%">
<TBODY>
<TR>
<TD align=absmiddle width=*><A
href="http://www.hzlitai.com.cn/bbs/messanger.asp?action=new&touser=tomcat"
target=_blank><IMG alt=给tomcat发送一个短消息
src="立宇泰嵌入式系统技术论坛-嵌入式操作系统相关-菜鸟写给菜鸟参考的44B0X_IIC驱动程序.files/message.gif"
align=absMiddle border=0></A> <A
href="http://www.hzlitai.com.cn/bbs/friendlist.asp?action=addF&myFriend=tomcat"
target=_blank><IMG alt=把tomcat加入好友
src="立宇泰嵌入式系统技术论坛-嵌入式操作系统相关-菜鸟写给菜鸟参考的44B0X_IIC驱动程序.files/friend.gif"
align=absMiddle border=0></A> <A
href="http://www.hzlitai.com.cn/bbs/dispuser.asp?id=908"
target=_blank><IMG alt=查看tomcat的个人资料
src="立宇泰嵌入式系统技术论坛-嵌入式操作系统相关-菜鸟写给菜鸟参考的44B0X_IIC驱动程序.files/profile.gif"
align=absMiddle border=0></A> <A
href="http://www.hzlitai.com.cn/bbs/query.asp?stype=1&nSearch=3&keyword=tomcat&BoardID=3&SearchDate=ALL"
target=_blank><IMG alt=搜索tomcat在的所有贴子
src="立宇泰嵌入式系统技术论坛-嵌入式操作系统相关-菜鸟写给菜鸟参考的44B0X_IIC驱动程序.files/find.gif"
align=absMiddle border=0></A> <A
href="mailto:com_wang@21cn.com"><IMG alt=点击这里发送电邮给tomcat
src="立宇泰嵌入式系统技术论坛-嵌入式操作系统相关-菜鸟写给菜鸟参考的44B0X_IIC驱动程序.files/email.gif"
align=absMiddle border=0></A> <A
href="http://www.hzlitai.com.cn/bbs/post.asp?action=re&BoardID=3&replyID=4709&id=954&star=1&reply=true"><IMG
alt=引用回复这个贴子
src="立宇泰嵌入式系统技术论坛-嵌入式操作系统相关-菜鸟写给菜鸟参考的44B0X_IIC驱动程序.files/reply.gif"
align=absMiddle border=0></A> <A
href="http://www.hzlitai.com.cn/bbs/post.asp?action=re&BoardID=3&replyID=4709&id=954&star=1"><IMG
alt=回复这个贴子
src="立宇泰嵌入式系统技术论坛-嵌入式操作系统相关-菜鸟写给菜鸟参考的44B0X_IIC驱动程序.files/reply_a.gif"
align=absMiddle border=0></A></TD>
<TD align=right width=70>第 <FONT color=#ff0000>3</FONT> 楼</TD></TR>
<TR>
<TD class=singleborder colSpan=3 height=1></TD></TR>
<TR>
<TD colSpan=3 height=2></TD></TR></TBODY></TABLE>
<TABLE style="TABLE-LAYOUT: fixed; WORD-BREAK: break-all" height="85%"
width="95%" align=center border=0>
<TBODY>
<TR>
<TD style="FONT-SIZE: 9pt; LINE-HEIGHT: 12pt" vAlign=top width=*
height="100%"><IMG alt=发贴心情
src="立宇泰嵌入式系统技术论坛-嵌入式操作系统相关-菜鸟写给菜鸟参考的44B0X_IIC驱动程序.files/face1.gif"
align=absMiddle border=0>
<B></B><BR>给新手参考<BR>注意：I2C的对端不是24C0X，而是一个单片机atmega8，协议不同不可照抄</TD></TR>
<TR>
<TD>
<DIV class=info></DIV></TD></TR></TBODY></TABLE></TD></TR>
<TR>
<TD class=tablebody1 vAlign=center align=middle width=175><IMG
alt=发贴IP已设置保密
src="立宇泰嵌入式系统技术论坛-嵌入式操作系统相关-菜鸟写给菜鸟参考的44B0X_IIC驱动程序.files/ip.gif"
align=absMiddle border=0> 2005-06-08 00:15</TD>
<TD class=tablebody1 vAlign=center width=*>
<TABLE cellSpacing=0 cellPadding=0 width="100%">
<TBODY>
<TR>
<TD vAlign=center align=left width=*> </TD>
<TD vAlign=bottom align=left width=130 nowarp="true"></TD>
<TD vAlign=center align=right width=170><A
href="http://www.hzlitai.com.cn/bbs/post.asp?action=edit&BoardID=3&replyID=4709&ID=954&star=1"><IMG
src="立宇泰嵌入式系统技术论坛-嵌入式操作系统相关-菜鸟写给菜鸟参考的44B0X_IIC驱动程序.files/edit.gif"
align=absMiddle border=0></A> <A class=ImgOnclick
onmouseover="showmenu(event,'','Menu_2');"><IMG
src="立宇泰嵌入式系统技术论坛-嵌入式操作系统相关-菜鸟写给菜鸟参考的44B0X_IIC驱动程序.files/topicmanage.gif"
align=absMiddle border=0></A> <A
href="http://www.hzlitai.com.cn/bbs/dispbbs.asp?BoardID=3&ID=954#top"><IMG
src="立宇泰嵌入式系统技术论坛-嵌入式操作系统相关-菜鸟写给菜鸟参考的44B0X_IIC驱动程序.files/p_up.gif"
align=absMiddle border=0></A></TD>
<TD vAlign=center
align=left></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE>
<DIV class=Menu_popup id=Menu_2 xmlns:z="#RowsetSchema"
xmlns:rs="urn:schemas-microsoft-com:rowset">
<DIV class=menuitems><A title=向管理员举报该贴
href="http://www.hzlitai.com.cn/bbs/TopicOther.asp?t=6&BoardID=3&id=954&ReplyID=4709">举报帖子</A><BR><A
href="http://www.hzlitai.com.cn/bbs/admin_postings.asp?action=dele_a&BoardID=3&replyID=4709&ID=954&star=1&userid=908">删除单贴</A><BR><A
href="http://www.hzlitai.com.cn/bbs/admin_postings.asp?action=copy_a&BoardID=3&replyID=4709&ID=954&star=1&userid=908">复制贴子</A><BR><A
href="http://www.hzlitai.com.cn/bbs/admin_postings.asp?action=isbest_a&BoardID=3&replyID=4709&ID=954&star=1&userid=908">加为精华</A><BR><A
href="http://www.hzlitai.com.cn/bbs/admin_postings.asp?action=islockpage_a&BoardID=3&replyID=4709&ID=954&star=1⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -