In-circuit emulator with gatekeeper based halt control
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United States of America Patent
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-
Jun 26, 2007
Grant Date -
N/A
app pub date -
Nov 14, 2001
filing date -
Oct 26, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A halt control gatekeeper for an In-Circuit Emulation system. Halt commands are implemented through a gatekeeper forming a portion of a virtual microcontroller that operates in lock-step synchronization with a real microcontroller under test. When a halt command is received, the gatekeeper determines if the microcontroller is in a sleep mode and, if so, appropriately notifies a host computer and queues up a halt command. If the microcontroller is not in a sleep mode, the gatekeeper simply queues a halt command and notifies the host computer when the microcontroller has halted and it is safe to perform debug operations on the virtual microcontroller.
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