Introduction - If you have any usage issues, please Google them yourself
USB, serial port, parallel port is PC and peripherals used for the communication interface, But for the large volume of data images, if the use of Serial RS-232 data acquisition agreement, speed image data can not achieve the requirements for acquisition; using USB for data collection, can meet the required speed, But requirements must support USB peripherals agreement, and USB agreement with the commonly used engineering software interface is not universal, difficult to use. Some users to take advantage of standard parallel port (SPP), for data collection, But SPP agreement of 150 kb/s transfer rate for image data acquisition, the same is too low. Therefore, in order to collect large quantities of data image data, In this paper, the high transmission rate of enhanced parallel port proto