GPIO_control_sample
所属分类:嵌入式Linux
开发工具:Unix_Linux
文件大小:17KB
下载次数:42
上传日期:2009-08-10 14:58:05
上 传 者:
yinongqiu
说明: AT91RM9200 GPIO端口的驱动模块开发,可对GPIO口进行读写访问。
(AT91RM9200 GPIO port driver module development, I can read and write access GPIO.)
文件列表:
GPIO control sample\drvtest\leddrv_test (12779, 2009-08-10)
GPIO control sample\drvtest\leddrv_test.c (1287, 2009-08-10)
GPIO control sample\drvtest\Makefile (136, 2009-08-10)
GPIO control sample\drv\.leddrv.ko.cmd (229, 2009-08-10)
GPIO control sample\drv\.leddrv.mod.o.cmd (8829, 2009-08-10)
GPIO control sample\drv\.leddrv.o.cmd (10118, 2009-08-10)
GPIO control sample\drv\leddrv.c (2403, 2009-08-10)
GPIO control sample\drv\leddrv.c~ (2401, 2009-08-10)
GPIO control sample\drv\leddrv.ko (2887, 2009-08-10)
GPIO control sample\drv\leddrv.mod.c (454, 2009-08-10)
GPIO control sample\drv\leddrv.mod.o (1280, 2009-08-10)
GPIO control sample\drv\leddrv.o (2096, 2009-08-10)
GPIO control sample\drv\Makefile (217, 2009-08-10)
GPIO control sample\drv\Makefile~ (214, 2009-08-10)
GPIO control sample\drv\.tmp_versions\leddrv.mod (97, 2009-08-10)
GPIO control sample\drv\.tmp_versions (0, 2009-08-10)
GPIO control sample\pc14,pc15 (0, 2009-08-10)
GPIO control sample\drvtest (0, 2009-08-10)
GPIO control sample\drv (0, 2009-08-10)
GPIO control sample\.tmp_versions (0, 2009-08-10)
GPIO control sample (0, 2009-08-10)
北京恒颐高科技术有限公司
www.hyesco.com
联系电话:+86-10-62121051/53
建立时间:2006年4月20日
编译环境:
Linux;
功能描述:
该例程为AT91RM9200的GPIO口PC14、PC15的驱动及测试例程,用户可以根据该例程编写其他GPIO的驱动程序。
操作方法:
1、将驱动程序leddrv.o拷贝到系统目录:/lib/modules
2、执行如下命令加载模块:
insmod /lib/modules/leddrv.o
3、执行如下命令建立设备文件:
mknod /dev/led c 254 1
4、将测试程序leddrv_test拷贝到系统目录:/test,然后执行:
./leddrv_test
此时系统的PC14、PC15口依次被置为高电平或低电平。
作者:
LJG
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