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UART interface design based on DM642 video surveillance system and wireless network module

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4 Author(s)
Zhang Baofeng ; Tianjin Key Lab. for Control Theor. & Applic. in Complicated Syst., Tianjin Univ. of Technol., Tianjin, China ; Zhang Kuigang ; Zhu Junchao ; Li Xinzhi

TMS320DM642(DM642) is a widely used digital media DSP chip. As with no Universal Asynchronous Receiver/Transmitter(UART) provided, it is difficult to communicate with other UART devices,especially in wireless video surveillance system.This paper uses on-chip multichannel buffered serial port(McBSP) and enhanced direct memory access(EDMA) to implement UART function based on DM642 and wireless communication module LC6311. The initialization of the McBSP and the data coding/decoding inprocess of transmitting/receiving are discussed in detail.This method can implement the communication between DM642 and LC6311 with easy program flow and no other devices. It enriches interface function of the DM642 and provides a new interface design for wireless video monitoring system.

Published in:

Software Engineering and Service Science (ICSESS), 2011 IEEE 2nd International Conference on

Date of Conference:

15-17 July 2011