Re: [casper] Regarding 32 channel ADC channel calibration in ROACH2

Hi dan, I hope your reply regarding the FFT core will solve my problem. I will try this method. Thank you so much. Regarding the ADC calibration, I have calibrated a single 16 ADC card and it was successful. when i try to calibrate both of them at the same time, it is giving error. Thank

Re: [casper] Regarding 32 channel ADC channel calibration in ROACH2

hi sivasankar, you are correct, the biplex fft's also have multiple inputs, but they are used in a different way: instead of multiple time samples from a single real ADC to process higher data rates than the FFT clock rate, the biplex FFT's compute two or four FFTs simultaneously. e.g. you can

Re: [casper] Regarding 32 channel ADC channel calibration in ROACH2

Hi dan, Thank you for your immediate response. In the fft_biplex_real blocks also they have at least two simultaneous input paths. So how can I split the one channel ADC output stream(200MHz) into multiple paths to give it to FFT block? Even if i find a method to do that, It will reduce the

Re: [casper] Regarding 32 channel ADC channel calibration in ROACH2

hi sivakumar, for low sample rate FFT's (where the FPGA clock = sample rate), i suggest you consider: fft_biplex_real_2x (Real-sampled Biplex FFT, with Output Demuxed by 2) fft_biplex_real_4x

[casper] Regarding 32 channel ADC channel calibration in ROACH2

Dear Caspers, Currently I am facing an issue with 32 ADC channel calibration with ROACH2 rev2 board. The script for 16-ADC channel calibration is working fine and it has calibrated successfully. I have used the same script and changed the 16 ADC design to 32 ADC channel. I have selected