Now almost everything is ready to receive HF Radio Stations.

• ADC: done
• sampler: done
• spectrum viewer: done but not mandatory for listening
• Digital down converter: done
• CIC decimator - FIR filter: done
• AM demodulator: done
• SSB demodulator: TODO
• AGC (*)
• I2S output: done

(*) designed and simulated but not tested yet

After a few attempts, using a simple C++ program running on Linux in the Zynq Programmable System I set:

• IF GAIN = 4
• CIC decimation = 1024 corresponding to an audio bandwith of 8KHz
• Mux switched to Test Generator
• Test Generator at 10 MHz (1 KHz Amplitude Modulated)
• Local Oscillator at 10 MHz

and obtained a clear 1KHz tone at the output of the PCM5102 I2S ADC (around 1,5 Vpp),

Then I successfully tried a few Radio Stations after verifying they were receivable at that time using http://kiwisdr.com/public/

• IF GAIN = 4 (up to 64)
• CIC decimation = 1024 corresponding to an audio bandwith of 8KHz
• Mux switched to ADC (don't forget to supply the ADC and connect the antenna)
• Local Oscillator at the frequency of the chosen Radio Station e.g. 7215 KHz for China Radio International (English)