Generating 24-channel PWM Waves Based on DSP
By using the timer 1 and the compare unit 1, 2 and 3 in the Event Manager A of TMS320LF2407A, the 24-channel PWM waveforms are generated for the servo control in this paper. Based on the time-sharing mechanism, a PWM cycle is divided into eight periods of time and During each time period, 3-channel PWM waves are output from port A, port B and port E of digital I/O ports synchronously by the control of the compare unit 1, unit 2and unit 3. This method not only avoids the design of complex hardware interface circuits, but also improves the reliability and the control accuracy of system. And moreover, it has been applied successfully in the control system of a humanoid robot of seventeen degrees of freedom.
DSP PWM waveforms timesharing mechanism
HUANG Xuemei XU Moufeng ZHANG Jiaju
Shandong Key Lab of Precision Manufacturing and Non-traditional Machining Shandong University of Technology Zibo, China
国际会议
太原
英文
476-479
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）