assembly/src/hw/mirny.md

Sinara 4456 synthesizer Mirny

Wiki

JSON

{
  "type": "mirny",
  "ports": [<port num>]
}

Testing

*** Testing Mirny PLLs.
Initializing CPLDs...
mirny0_cpld...
...done
All mirny channels active.
Frequencies:
mirny0_ch0	1000MHz
mirny0_ch0 info: {'f_outA': 1000000000.0, 'f_outB': 8000000000, 'output_divider': 4, 'f_vco': 4000000000, 'pll_n': 40, 'pll_frac1': 0, 'pll_frac2': 0, 'pll_mod2': 1, 'prescaler': '4/5', 'sysclk': 100000000.0, 'ref_doubler': False, 'ref_divider': False, 'ref_counter': 1, 'f_pfd': 100000000}
mirny0_ch1	1100MHz
mirny0_ch1 info: {'f_outA': 1100000000.0, 'f_outB': 8800000000, 'output_divider': 4, 'f_vco': 4400000000, 'pll_n': 44, 'pll_frac1': 0, 'pll_frac2': 0, 'pll_mod2': 1, 'prescaler': '4/5', 'sysclk': 100000000.0, 'ref_doubler': False, 'ref_divider': False, 'ref_counter': 1, 'f_pfd': 100000000}
mirny0_ch2	1200MHz
mirny0_ch2 info: {'f_outA': 1200000000.0, 'f_outB': 9600000000, 'output_divider': 4, 'f_vco': 4800000000, 'pll_n': 48, 'pll_frac1': 0, 'pll_frac2': 0, 'pll_mod2': 1, 'prescaler': '4/5', 'sysclk': 100000000.0, 'ref_doubler': False, 'ref_divider': False, 'ref_counter': 1, 'f_pfd': 100000000}
mirny0_ch3	1300MHz
mirny0_ch3 info: {'f_outA': 1300000000.0, 'f_outB': 10400000000, 'output_divider': 4, 'f_vco': 5200000000, 'pll_n': 52, 'pll_frac1': 0, 'pll_frac2': 0, 'pll_mod2': 1, 'prescaler': '4/5', 'sysclk': 100000000.0, 'ref_doubler': False, 'ref_divider': False, 'ref_counter': 1, 'f_pfd': 100000000}

After running artiq_sinara_test:

1. Install gqrx nix-shell -p gqrx
2. Connect bladeRF via USB cable only
3. Run gqrx and choose BladeRF #<number>...
4. Default settings
5. When gqrx loaded, start DSP processing with frequency at mirnyN_chM freq
6. Connect the probe through attenuator to the Mirny's port
7. You should see significant signal emission on choosen freq compared to nearby freqs (see image below)
8. Repeat 5-7 for every channel