I think Bus Analyzer and Protocol Analyzer of Digital Discovery are the same function. What bus can it support? Can it support CAN and I2S?
From this link
https://digilent.com/reference/test-and-measurement/digital-discovery/start
At the table on the right, you can see “Bus Analyzer: SPI, I²C, UART, CAN, I2S, Parallel and Custom”
From this link
https://digilent.com/reference/test-and-measurement/digital-discovery/specifications
You can see “Digital bus analyzer(SPI, I²C, UART, Parallel)”