How to access Additional Parallel Port using Matlab?

3 次查看（过去 30 天）

Abdullah Tahir 2012-5-17

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/38648-how-to-access-additional-parallel-port-using-matlab

评论： Walter Roberson 2015-6-23

I have got USB to Parallel Converter, my Laptop detects it. But I can't access this Parallel Port using Matlab? Kindly tell me how to access this Parallel Port?

5 个评论
显示 3更早的评论隐藏 3更早的评论

Neel Bhatt 2015-6-22

Can you help me connect to a parallel port with matlab? My laptop doesn't have a port but I just want to check if I can send data via a parallel port.

Walter Roberson 2015-6-23

Neel, what do you need the parallel port to do for you?

请先登录，再进行评论。

请先登录，再回答此问题。

回答（2 个）

Abdullah Tahir 2012-5-21

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/38648-how-to-access-additional-parallel-port-using-matlab#answer_48502

ok... then can u please help me How to program a usb port?

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

Walter Roberson 2012-5-21

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/38648-how-to-access-additional-parallel-port-using-matlab#answer_48513

USB ports are serial buses with a master/slave polling protocol. One does not "program" a USB port: one makes requests of a USB controller device. Making custom requests of the controller is beyond what MATLAB can do without additional programming with a low-level system language such as C.

There are USB-compatable devices that, with appropriate driver software installed, USB controllers know to present to the operating system as if the devices were serial ports or parallel ports. Programs do not need to do anything special to use those virtual serial ports or virtual parallel ports, just access the devices with the same code that would be used for [inferior quality] serial ports or parallel ports.