Accelerate FPGA Debug using Mixed Signal Oscilloscopes
应用文章
Debug of FPGAs is inherently challenging due to the presence of large numbers of internal logic nodes inaccessible to traditional probing. Limitations on pin count bound a designer’s ability to brute force a solution. Innovations such as JTAG and the internal logic analyzer have helped alleviate these problems and route important signals out of the FPGA for analysis. Traditionally, logic analyzers have been used to debug FPGAs. However, more recently mixed signal oscilloscopes (MSO) have become commonly used for their ability to measure both analog and digital signals. In recent years, a new class of applications have placed incredible demands on FPGA transceiver speeds, increasing the need for accurate and high bandwidth analog measurements along with digital analysis in FPGA debug. This article will discuss both digital and analog debug of state-of-theart FPGAs using a high bandwidth mixed signal oscilloscope.