再谈WinIO初始化异常
- December 18th, 2008
- By april1985
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前段时间WinIO在我的新项目中总是初始化失败，有时候又是好好的，很让人费解。修改了源代码显示了很多调试信息后，也没有什么太多的收获。由于我们的工控卡必须要用这个库，所以没办法，只得停下脚步，细细研究一下问题所在。 Read more
Posts Tagged ‘winio’
WinIO初始化失败的几个原因
- December 11th, 2008
- By april1985
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WinIO是一个能够打开一些操作系统IO特权操作的一个库，简单的来说它加载了一些驱动。通过加载的驱动可以直接的访问端口。在工控上，我们可以利用这个库直接操作IO卡的地址。例如我最近在做的一个数控钻铣床的IO卡和运动控制卡就是很老的一个卡，在WIN98下面工作很正常，但是在NT核心上就会出现非法指令调用的问题。这些非法指令来自于底层对IO卡和运动控制卡的直接地址访问。 Read more
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