Lauta (Germany), October 4, 2018 – With the new Multi-Target Debug Adapter suitable for the Universal Access Device 3+ (UAD3+) of the Universal Debug Engine (UDE), PLS Programmierbare Logik & Systeme presents the first tool that allows synchronous debugging of multi-chip systems.
The Multi-Target Debug Adapter for the UAD3+ enables almost synchronous stopping and restarting of two tightly coupled AURIX™ microcontrollers. A standard debug adapter is connected to each of the separate debug interfaces of the two AURIX™ devices. These are then connected via the Multi-Target Debug Adapter to a debug pod of the UAD3+, which provides the two necessary debug channels.
In addition to connectors for the standard debug adapters, the Multi-Target Debug Adapter has an additional connector for particular trigger signals of the two AURIX™ controllers. The special logic of the Multi-Target Debug Adapter links the trigger lines in such a way that the two AURIX™ microcontrollers can be stopped and restarted almost synchronously. It does not matter whether the entire system reacts to a breakpoint in one of the two controllers or to a break action triggered by the user. The time difference, caused by the internal logic of the adapter and the signal propagation delays between the two controllers, is on average only about 65 ns when stopping or restarting. That is less than 20 clock cycles at a typical 300 MHz clock frequency.
Both AURIX™ microcontrollers are accessible and controllable in one debug session within a common, consistent user interface. Of course, the established multicore run control management of the UDE is also available for debugging of multiple AURIX™ platforms. In a run control group all cores or a definable number of cores of the two controllers can be combined, so breakpoints, manual stopping and synchronous restarting become effective for all cores of that group.