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Asynchronous Serial Communications Programmer's Reference Manual: HP 3000 MPE/iX Computer Systems
Chapter 2 Controlling Asynchronous Devices Programmatically |
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Table of Contents Programmatically Once an asynchronous device is properly connected and configured on a HP 3000 Series 900 computer, it can be accessed programmatically through the MPE/iX File System. The File System interfaces with the ASC software, which communicates with the device based on its port configuration. Your program has only to treat the device as a file a devicefile, and the computer will handle the actual communication with the device, including use of the proper protocol. This chapter discusses how the File System, system intrinsics, and your program can work together to control an asynchronous device. The following topics are discussed:
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