| Popis: |
Based on the embedded Linux system, this paper studies the high-speed data transmission system for the IC test. The AXI4 Burst interface module between DDR and FIFO is designed by using data transmission segmentation method, which can minimize the transmission cycles. The read/write channel of the communication module between ZYNQ and FPGA has both a data/instruction valid signal and an accompanying clock, which can improve stabilization of data transmission. Finally, to design device driver and application for the data transmission peripheral by using memory mapping, which helps users to operate and manage the peripheral and a large number of files for IC test. Experimental results show after many tests, the sending and receiving files are consistent, indicating that the system can transmit data correctly and stably. The data transmission rate of the system can reach 540Mbps. |
