Abstract: Techniques for implementing selective scan insertion and verification that reduce production and verification time by enabling a test harness to insert and test scan chains are disclosed. Circuit nodes in a system model are selected and scan insertion is provided at the selected nodes. Selective scan insertion can be performed quickly and, in some implementations, automatedly to enable verification of correspondence of different system models or one or more system models and fabricated circuits. A request for manufacture may be generated including aspects of the system model to enable verification of a fabricated circuit in a similar or identical manner to those used to verify the system model.

Abstract: A multi-die integrated circuit uses an on-chip test distribution module to distribute test data to different dies, such as processor chiplets. The test distribution module receives test input data from an external source via one or more integrated circuit pins and distributes the test input data to the different dies, such that the different dies are able to concurrently apply the test data to one or more circuits. Based on application of the test input data the different dies concurrently generate corresponding test results that are used to identify and address design or operation errors at the dies.

Abstract: A circuit may be used for testing for faults in a programmable logic device. The circuit may include a clock generator coupled to receive a reference clock signal and generate a high speed clock signal; a circuit under test coupled to receive selected pulses of the high speed clock signal; and a programmable shift register coupled to receive a pulse width selection signal and generate an enable signal for selecting the pulses the high speed clock signal, wherein the pulse width of the enable signal is selected based upon the value of the pulse width selection signal. A method of testing for faults in a programmable logic device is also disclosed.

Abstract: A method of testing a programmable device begins by programming at least a portion of the programmable device in accordance with at least a portion of an application to produce a programmed circuit, wherein the programmed circuit includes an input sequential element and an output sequential element. The method continues by providing a test input to the programmed circuit. The method continues by triggering the input sequential element to temporarily store the test input based on a first edge of the test clock. The method continues by triggering the output sequential element to temporarily store a test output of the programmed circuit based on a second edge of the test clock. The method continues by capturing the test output of the programmed circuit in accordance with the second edge of the test clock.

Abstract: A method of testing a programmable device begins by programming at least a portion of the programmable device in accordance with at least a portion of an application to produce a programmed circuit, wherein the programmed circuit includes an input sequential element and an output sequential element. The method continues by providing a test input to the programmed circuit. The method continues by triggering the input sequential element to temporarily store the test input based on a first edge of the test clock. The method continues by triggering the output sequential element to temporarily store a test output of the programmed circuit based on a second edge of the test clock. The method continues by capturing the test output of the programmed circuit in accordance with the second edge of the test clock.

Abstract: A Built-in Self Test (BIST) system is provided in a Field Programmable Gate Array (FPGA) that can adjust test signal patterns provided for testing after partial reconfiguration of the FPGA. The BIST system includes a decoder that monitors I/O signals and provides an output indicating when I/O signals change indicating partial reconfiguration has occurred. The decoder output is provided to a BIST test signal generator providing signals to an IP core of the FPGA as well as a BIST comparator for monitoring test results to change test signals depending on the partial configuration mode.