Construct High-speed Data Transmission Platform Based On Fpga

The widespread availability and use of digital multimedia content has created a need for faster wireless connectivity. The WiGig (Wireless Gigabit) technology aims to realize a short distance high-speed wireless communication, which supports for data transmission rates up to7Gb/s at the60GHz band. Compared to the current wireless local area networks (WLAN), such as Wi-Fi, Bluetooth and HomeRF, the WiGig enhances the data rate and spectrum utilization largely. The main work of this dissertation is the establishment of60GHz WiGig chip testing platform, mainly discusses the high-speed serial data transmission between the PC, FPGA and ASIC.Firstly, this dissertation discussed the PCI Express implementation and I/O control methods, and then built the single and double buffering models separately using communicating sequencial process (CSP) theory. As a result, a conclusion that double buffering can improve the data rate and save hardware resources was proved using formal methods.Secondly, the hardware circuits of the testing platform were designed. The device drivers, such as PCI Express, double buffering DMA (Direct Memory Acess), GTX transceiver and ADC/DAC, were designed in the FPGA chip. All these drivers were made as independent customized IP cores for the convenience of further development.Finally, a system on chip (SoC) was made by connecting the MicroBlaze soft processor core with customized IP cores. On the software side, the Xilkernel was used to build the multi-task, multi-thread embedded real-time operating system. Based on the above work, the WiGig chip testing platform was implemented.The test results show that the data rate of PCI Express achieves9Gb/s, and the speed of2-lane GTX transceiver achieves7.6Gb/s, which meet the7Gb/s requirement of WiGig technology. By establishing the communication mechanism between PC and MicroBlaze, the PC can control the MicroBlaze processor and the whole platform. In addition, this WiGig chip testing platform can also be used in the software-defined radio (SDR) system. This dissertation also implements the real-time data acquisition, storage and conversion with all the expected requirements met or exceeded.