SST SST-SR4-CLX-RLL Signal output card

IOP allows you to read or write blocks of data, or to format the specified device in a certain way. IOP creates a command packet from the arguments you have specified, and then invokes the proper system call function to carry out the operation. IOT (I/O Teach) IOT allows you to change any configurable parameters and attributes of the device. In addition, it allows you to see the controllers available in the system.

BH reads an operating system or control program from a specified device into memory, and then returns control to 187Bug. It is used as a debugging tool. Disk I/O via 187Bug System Calls All operations that actually access the disk are done directly or indirectly by 187Bug TRAP #496 system calls. (The command-level disk operations provide a convenient way of using these system calls without writing and executing a program.)p Operating System) BO reads an operating system or control program from the specified device into memory, and then transfers control to it.

To perform a disk operation, 187Bug must eventually present a particular disk controller module with a controller command packet which has been especially prepared for that type of controller module. (This is accomplished in the respective controller driver module.)A command packet for one type of controller module usually does not have the same format as a command packet for a different type of module. The system call facilities which do disk I/O accept a generalized (controller-independent) packet format as an argument, and translate it into a controller-specific packet, which is then sent to the specified device. Refer to the system call descriptions in the Debugging Package for Motorola 88K RISC CPUs User's Manual for details on the format and construction of these standardized "user" packets.

Related products：

NI PXIE-4353 Temperature input module

NI PXI-8187 Relay module

NI PXI-8176 Processing controller