Same-type PXI test module identification method

Abstract

The invention provides a same-type PXI test module identification method, comprising the following steps of: programming a device serial number for a register unused in a control chip external serial EEPROM of a module device; performing operation on specific I / O space of a local computer to drive a PCI bridge circuit to be converted to operation on configuration space of the module device, performing matching on user setting information, and storing configuration address port information matched with the module device; and reading a device serial number of a storage module, performing matching on the user setting information, identifying same-type modules, and reversely obtaining a module control handle. According to the method, the attributes of a manufacturer ID and a device ID of a PCI configuration register and the device serial number programmed in the register of the control chip external serial EEPROM are taken as module identification information, the module device is opened once only in the module identification process and the module handle is reversely obtained, so that the efficiency is high; and the device serial number is programmed for the module, so that module accessioning management can be realized and project development management is facilitated.

Description

technical field [0001] The invention relates to the field of PXI test modules, in particular to a method for identifying similar PXI test modules. Background technique [0002] PXI test modules have been rapidly developed and applied in the test field due to their small size, flexible plug-in combinations, and high integration efficiency. With the construction of a general platform for module systems and the improvement of integration, a set of PXI test module integration systems will appear There are cases of the same type of test modules, such as multiple local oscillator modules. [0003] The existing module identification method is based on the module handle. For an integrated system with only one functional module, before identifying the module, it is necessary to open all the local PCI interface devices to obtain the module handle. The vendor ID and device ID attributes are matched with the user setting information. When the same type of modules exist in the integrat...

AI Technical Summary

Problems solved by technology

During the entire identification process, handles that are not related to the required identification modules are operated, which reduces the efficiency of module identification. When the module is replaced with a chassis slot, it is necessary to change the relevant identification fields in the program, which breaks the closed principle of the program for changes, which is not conducive to the project. development management of

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