Personal Electronic Laboratory Based On FPGA

"Personal Electronic Laboratory " is a set of oscilloscope, signal generator, logic analyzer, spectrum analyzer, digital filter, frequency meter, etc. in one device to FPGA as the core of high-speed data processing, and use NiosⅡsoft processors to manage a variety of external devices is a comprehensive instrument. She can help students easily complete electronic various comprehensive experiments, we can help electronics engineers for a variety of common projects in the spot test and debug. Noting the common market instruments are high performance, but their prices tend to be expensive. We (especially students) to do common electronic electrical experiments, often less than the maximum equipment performance, equipment and more demands have more features (such as AD experiment, the simulation of both side of the waveform display can also digitally side logic analysis). Virtual instrument may be able to meet these requirements, but the virtual machines, but the factory after a function is fixed, the system is not easy to upgrade. Moreover, the virtual instrument to rely on the host computer a lot of high-speed data processing, which requires it to use more high-speed PCI bus and host computer to communicate. This is not only costly, but also to some extent, affected the normal work PC. Therefore, "multi-functional electronic experimental platform" in the student's learning plays a vital role in life.Multi-function electronic experimental platform has many advantages, the first system contains a variety of data-intensive devices (such as spectrum analyzers, etc.) require a powerful processor, data processing capabilities, and this is the FPGA's strengths lie. Using high-speed FPGA features and it includes the DSP's powerful data processing capabilities, we can use the hardware, greatly reducing data processing time, the system efficiently, and stable operation.Secondly, SOPC system provides the Avalon bus NiosⅡprocessor and system for connecting external devices. We can easily use it to manage the "multi-functional electronic experimental platform" all the equipment inside, without having to worry about the issue of Work Order of the instrument or equipment between the data conflict.At the same time, the FPGA device has low power consumption, high speed, high reliability De Tedian, This we upgrade the sub module was to provide a broad space. The maximum frequency of the oscilloscope determines the overall performance of the oscilloscope, since the work of this FPGA frequency of up to several hundreds of MHz, so we can use it to design a high performance oscilloscope module.Finally, the development board provides a rich natural resources and routines of hardware, we can use these simple and practical resources to receive the user's command, display various waveforms, parameters, working conditions and so marked the systemAlthough the multi-function electronic experiment measurement platform can not meet the standard laboratory measuring instruments such as the accuracy of Yiyang, but it can meet the basic requirements of students, and can achieve good effects like digital frequency meter, digital millimeter and so on. These instruments are commonly used to achieve very small errors. And it can effectively use the resources around them, using VGA monitor, and the interface simple and very suitable for students in independent research and development and to meet experimental requirements.