Hello, Recently I just ported my spectrometer design from ibob to roach. The spectrometer is 500 MHz bandwidth (ADC clock: 1000 MHz).
The simulation and compiling is successful, but when I run it with roach, I can only get the meaningful spectrum at the ADC clock under 800 MHz. When the ADC clock is large than 800 MHz, the spectrum output is just noise. The same design of ibob version can run at FPGA clock 250 MHz without any problem. Does anyone have the similar problem? Or is there anyone have ever run the roach design with FPGA clock larger than 250 MHz. -- Zhiwei Liu New Jersey Institute of Technology 101 Tiernan Hall 323 Martin Luther King Blvd. Newark, NJ 07104
