01 2013 档案

自动化通讯协定——现场总线
摘要：自动化通讯协定程序自动化▪BSAP▪CC-Link▪CIP▪CAN▪CANopen▪ControlNet▪DeviceNet▪DF-1▪DirectNET▪EtherCAT▪Ethernet Global Data (EGD)▪Ethernet Powerlink▪EtherNet/IP▪FINS▪FOUNDATION fieldbus▪GE SRTP▪HART Protocol▪Honeywell SDS▪HostLink▪INTERBUS▪MECHATROLINK▪MelsecNet▪Modbus▪Optomux▪PieP▪Profibus▪PROFINET IO▪SERCOS inter 阅读全文
posted @ 2013-01-12 14:05 xwiron 阅读(497) 评论(0) 推荐(0)
NTP/SNTP时间同步参考
摘要：Querying an NTP/SNTP Time ServerOver the last week of so I've noticed several questions in the newsgroups about how to synchronize a CE device's time with a time server. Once again, it's not something I'd done, but I knew there were servers out there that provide the time publicly, s 阅读全文
posted @ 2013-01-09 09:12 xwiron 阅读(350) 评论(0) 推荐(0)
RL-RTX（CM3）的任务中不能配置NVIC，否则进入HardFault的原因
摘要：【译】RL-RTX（CM3）的任务中不能配置NVIC，否则进入HardFault的原因转至 http://hi.baidu.com/chinleo/item/f959194767b3fbd0c0a5924dRL-RTX默认使能非特权模式，非特权模式下RL-RTX（CM3）的任务中不能配置NVIC，否则进入HardFault。http://www.keil.com/support/man/docs/rlarm/rlarm_ar_cfgrunpriv.htmCortex-M设备的RTX库允许选择用户任务的运行模式。任务可以运行在两个模式： ·非特权模式——受保护的模式 ·特权模 阅读全文
posted @ 2013-01-04 03:50 xwiron 阅读(697) 评论(0) 推荐(0)