Methods and systems for remotely controlling a test access...

Details Methods and systems for remotely controlling a test access... Methods and systems for remotely controlling a test access...

2006-03-21

2006-03-21

Baderman, Scott (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

Reexamination Certificate

active

07017081

ABSTRACT:
JTAG operations are carried out remotely over a network interface. The host processor includes a JTAG interpreter and a host side JTAG driver. A target device includes a target side JTAG driver. The interpreter processes and translates JTAG design files. The host side JTAG driver generates messages for the target side JTAG driver based on the translation. The host JTAG driver delivers the messages to a host network interface. The host network interface is connected via a network link to a target network interface. The target network interface is connected to the target side JTAG driver. The target side JTAG driver communicates with a target boundary scan chain. The target side JTAG driver and host side JTAG driver communicate over the network link. Network overhead is reduced by buffering messages until a message requiring a return of test data is ready for transmission.

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