Background debug mode interface: Difference between revisions

Revision as of 14:08, 16 February 2020

Revision as of 22:04, 15 December 2022

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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 [[In-circuit emulator|in-circuit 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.