1,486
社区成员
发帖
与我相关
我的任务
分享如何从USB设备读数到VB的程序中
我现在在做一个CCD数据采集板，通过模数转换经PDIUSBD12送到USB口。需用VB编一个程序显示出这些数据。请问VB中要调用什么函数来得到USB送来的数据。谢谢！
...全文
请发表友善的回复…
发表回复
a11s 2003-04-20
- 打赏
- 举报
网上说，用VB可以内嵌汇编的
chriswing 2003-04-18
- 打赏
- 举报
VB无法直接操作底层,要写.sys
用户 昵称 2003-04-16
- 打赏
- 举报
http://www.dapha.net里面可以搜索到一个示例，本论坛精华区以前有个帖子，自己找找吧！
Alternatively, USB is nothing more than a specialized (high speed) serial port and it can be accessed by using the port address. The only downside to this is that you have to check for port addresses (which I believe their is an I/O API function for) in case of the presence of a HUB or even more than one USB controller (i.e. MB has on board USB and a USB2.0 I/O card exists with or without a HUB)
---------------------------------------------------------
Montaque==Digitalboy==Houyongfeng==Monkey
大概是说USB的访问方法和串口类似。
Alternatively, USB is nothing more than a specialized (high speed) serial port and it can be accessed by using the port address. The only downside to this is that you have to check for port addresses (which I believe their is an I/O API function for) in case of the presence of a HUB or even more than one USB controller (i.e. MB has on board USB and a USB2.0 I/O card exists with or without a HUB)
---------------------------------------------------------
Montaque==Digitalboy==Houyongfeng==Monkey
大概是说USB的访问方法和串口类似。
a11s 2003-04-16
- 打赏
- 举报
对了，你的信誉是101 怎么加的？
a11s 2003-04-16
- 打赏
- 举报
建议找一下驱动程序中有没有 提供开发的OCX (比如我的USB摄像头就有)
找不到的话去官方网站看看，再没有发信去索要相关 DLL使用方法
他们写的驱动，一定有调用办法
找不到的话去官方网站看看，再没有发信去索要相关 DLL使用方法
他们写的驱动，一定有调用办法
