DEBUG CIRCUIT, DEBUG REQUEST CIRCUIT AND DEBUG SYSTEM
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United States of America Patent
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Issued Date -
Jul 28, 2016
app pub date -
Jan 20, 2016
filing date -
Jan 26, 2015
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Abstract
A debug circuit set in a host device includes a first USB interface, a USB communication unit, a UART communication unit, a detection unit and a switch unit. The USB communication unit is configured to communicate with other devices. The UART communication unit is configured to obtain debug information of the host device. The detection unit is configured to output a detection signal. The debug circuit communicates with other devices through the first USB interface when the switch unit connects the USB communication unit with the first USB interface. The debug circuit outputs the debug information through the first USB interface when the switch unit connects the UART communication unit with the first USB interface.
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