A device which includes a first integrated circuit and a second IC for applying a fixed logic value to an input of the first integrated circuit. A conventional implementation uses pull-up and pull-down resistors, but these resistors necessitate an additional step and additional elements for the testing of the relevant interconnections. The device is improved in that an output of the second IC, which outputs the logic value during normal operation, is controlled via test logic during testing. As a result, the interconnections between the output of the second IC and the input of the first IC are tested in the same way and as part of the testing of the other interconnections between the first and second integrated circuits.
A system and method for diagnosing an electronic device remotely using a network is provided. The electronic device includes one or more programmable logic devices that are configurable. A diagnostic microcontroller functions to communicate to the programmable logic devices and to communicate to the network. To diagnose the electronic device, communication is established to the network and to a diagnostic/repair center. The diagnostic/repair center selects diagnostic commands and transmits them to the electronic device. The diagnostic microcontroller initiates the diagnostic commands on the one or more programmable logic devices to test their configuration and/or functionality. Test results are collected and transmitted back to the diagnostic/repair center for analysis. Based on the analysis, if appropriate, reconfiguration commands are sent to reconfigure the programmable logic device to correct identified errors.
A system and method for diagnosing a software system within a remote electronic device using a network is provided. A diagnostic controller controls diagnostics of the software system by instructing the remote electronic device to replace a selected software component of the software system with a diagnostic software component. The diagnostic software component has equivalent operational characteristics as the selected software component and includes trace logic that collects diagnostic data while operating with the software system. An analysis routine analyzes the diagnostic data and recommends a corrective measure for the software system.
