Background debug mode interface: Difference between revisions

Revision as of 04:52, 9 March 2014

Revision as of 05:08, 9 March 2014

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In other words the increasing complexity of today’s software and hardware designs is leading to some fresh approaches to debugging. ''Silicon manufacturers offer more and more on-chip debugging features for emulation of new processors''.

This capability, implemented in various processors under such names as Background Debug Mode (BDM), [[Joint Test Action Group|JTAG]] and on-chip emulation{{Dubious[[In-circuit emulator|date=Marchin-circuit 2010}}emulation]], puts basic debugging functions on the chip itself. With a BDM (1 wire interface) or JTAG (standard JTAG) [[debug port]], you control and monitor the microcontroller solely through the stable on-chip debugging services.

This debugging mode runs even when the target system crashes and enables developers to continue investigating the cause of the crash.