A model library for Stellaris mixed-signal MCUs from Luminary Micro has been developed by Goepel to support its emulation technology, VarioTAP. The libraries, which are structured as intelligent IP, can be used in boundary-scan test and JTAG emulation. Embedded or external flash can be in-system programmed via the native processor function. The emulation technology supports bus- and system-emulation tests for extended JTAG/boundary scan. The library is designed to support the Stellaris family and has an ARM Cortex-M3 core and extended periphery equipment as the control processor. The models have been developed in cooperation with Testonica, recently affiliated into Goepel's GATE partner programme. The adaptive-streaming technology of the TAP signals allows emulation tests to be executed in parallel or interactively with boundary-scan tests within a test program, whereby the number of TAPs is unlimited. Using the ScanFlex hardware, up to eight TAPs can be actuated independently from or simultaneously to other I/O resources. In addition to dynamic tests of externally connected components, such as RAMs or I/O resources, the IP functions for bus and system emulation enable the functional test of on-chip interfaces, as well as the execution of a customer-defined program code. The IP models are are supported with System Cascon, version 4.5, the company's JTAG/boundary-scan development environment.
