Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
CONTACTLESS SERIAL PORT DEBUGGING CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2020/248874
Kind Code:
A1
Abstract:
The present invention relates to the technical field of integrated circuits, in particular to a contactless serial port debugging circuit. The contactless serial port debugging circuit comprises: a gating unit capable of performing switching, and a test unit; a test platform, wherein the test platform is provided with a digital signal optical cable interface, and the gating unit uses the digital signal optical cable interface to transmit a digital signal and enables gating of a serial port signal, so as to realize switching between a digital signal transmission channel and a serial port signal transmission channel; and a test end provided with a serial port signal optical cable interface, wherein the serial port signal optical cable interface and the digital signal optical cable interface are converted and multiplexed, and the test unit transmits and tests the serial port signal by means of the serial port signal optical cable interface. The beneficial effects thereof lie in that a contactless debugging mode for a serial port signal is realized on an original digital signal channel, wherein same not only makes the cost low and the degree of complexity low, but can also effectively prevent the potential problem of static electricity damaging a device due to same being in a contact-type debugging mode, and can achieve economic benefits and practicability with no need for the workload of special software.

Inventors:
HAN XIAOJIANG (CN)
ZHANG KUN (CN)
Application Number:
PCT/CN2020/094034
Publication Date:
December 17, 2020
Filing Date:
June 02, 2020
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
AMLOGIC SHANGHAI CO LTD (CN)
International Classes:
H04N17/00
Foreign References:
CN110351547A2019-10-18
CN104363404A2015-02-18
CN101902769A2010-12-01
KR20040006354A2004-01-24
Other References:
ANONYMOUS: "TS5USBA224: USB 2.0 High-Speed (480 Mbps) and Audio Switches with Negative Signal Capability and 1.8-V Logic Compatibility", TI DATA SHEET, no. TS5USBA224, 31 October 2010 (2010-10-31), pages 1 - 22, XP009524881
Attorney, Agent or Firm:
SHANGHAI SHENXIN LAW FIRM (CN)
Download PDF: