Pluto not receiving FM on IIO

Hello Youssef,

What do you mean when you say, you cannot get the FM range 88-108 MHz on IIO? Do you get any errors? If so, what API are you using - MATLAB/Python/GNU Radio? Do you get errors when you try to access attributes using iio_attr? Do you see errors in IIO Oscilloscope?

- Srikanth

Hi thanks for the reply, sorry i didn't specify, what i mean is on IIO (FFT 4096)  i should be visualizing signal peaks in the FM range ? like in a spectrum analyzer? or i'm wrong

Can you provide a screenshot of the capture window i.e., the one which contains the FFT plot and the FMComms2/3/4 tab from the main window?

Also, do you know if there is actual signal in the frequencies you are looking at?

-Travis

yes of course i work as a spectrum engineer

Can you provide a screenshot of the FMComms2/3/4 tab from the main window of IIO Oscilloscope also? The status of various settings from that tab might help in debugging the problem. 

Can you provide a screenshot of the FMComms2/3/4 tab from the main window of IIO Oscilloscope also? The status of various settings from that tab might help in debugging the problem. 

 hi sorry for late reply, i don't know if its was you seek i'm new to this my background is in comms engineering, let me know

I see that you are loading a filter that sets the RF bandwidth to 0.4 MHz and Sampling Rate to 0.521 MSPS. This means that you should observe the spectrum plot to span from -260.5 kHz to 260.5 kHz with the passband spanning from -200 kHz to 200 kHz. Your spectrum plot doesn't seem to match these numbers. Do you see that the spectrum plot updates as expected based on the RF bandwidth and Sampling Rate settings for various filters? Do you observe similar mismatch between the spectrum analyzer and Pluto at other frequencies in the FM band i.e., strong peaks in spectrum analyzer indicating possible FM signals and nothing in IIO OSC? You can install IIO Oscilloscope on WIndows 10 directly. Can you try tosee if it makes a difference?

HI. I suspect using Pluto on linux with VMware could be problematic so I installed Pluto on another device (a laptop with windows 7), i get the following 

 + for  

i would like to see the whole spectrum FM band, something like this on a spectrum analyzer

hi is here any news on this subject?

capture of iio attr 

v0.31
wiki.analog.com/.../pluto
# iio_info
Library version: 0.18 (git tag: v0.18)
Compiled with backends: local xml ip usb serial
IIO context created with local backend.
Backend version: 0.18 (git tag: v0.18)
Backend description string: Linux pluto 4.14.0-42540-g387d584 #301 SMP PREEMPT W ed Jul 3 15:06:53 CEST 2019 armv7l
IIO context has 7 attributes:
hw_model: Analog Devices PlutoSDR Rev.B (Z7010-AD9364)
hw_model_variant: 0
hw_serial: 1044730a1997001908003800f2647c0ae5
fw_version: v0.31
ad9361-phy,xo_correction: 39999852
ad9361-phy,model: ad9364
local,kernel: 4.14.0-42540-g387d584
IIO context has 5 devices:
iio:device0: adm1177
2 channels found:
voltage0: (input)
2 channel-specific attributes found:
attr 0: raw value: 762
attr 1: scale value: 6.433105468
current0: (input)
2 channel-specific attributes found:
attr 0: raw value: 715
attr 1: scale value: 0.516601562
iio:device1: ad9361-phy
9 channels found:
altvoltage1: TX_LO (output)
8 channel-specific attributes found:
attr 0: external value: 0
attr 1: fastlock_load value: 0
attr 2: fastlock_recall ERROR: Invalid argument (-22)
attr 3: fastlock_save value: 0 143,0,173,242,12 2,65,24,8,238,85,111,221,118,252,23,164
attr 4: fastlock_store value: 0
attr 5: frequency value: 89974998
attr 6: frequency_available value: [46875001 1 6000000000]
attr 7: powerdown value: 0
voltage0: (input)
15 channel-specific attributes found:
attr 0: bb_dc_offset_tracking_en value: 1
attr 1: filter_fir_en value: 1
attr 2: gain_control_mode value: slow_attack
attr 3: gain_control_mode_available value: manu al fast_attack slow_attack hybrid
attr 4: hardwaregain value: 71.000000 dB
attr 5: hardwaregain_available value: [-3 1 71]
attr 6: quadrature_tracking_en value: 1
attr 7: rf_bandwidth value: 400000
attr 8: rf_bandwidth_available value: [200000 1 56000000]
attr 9: rf_dc_offset_tracking_en value: 1
attr 10: rf_port_select value: A_BALANCED
attr 11: rf_port_select_available value: A_BALAN CED B_BALANCED C_BALANCED A_N A_P B_N B_P C_N C_P TX_MONITOR1 TX_MONITOR2 TX_MON ITOR1_2
attr 12: rssi value: 126.00 dB
attr 13: sampling_frequency value: 1000000
attr 14: sampling_frequency_available value: [52 0833 1 30720000]
voltage3: (output)
8 channel-specific attributes found:
attr 0: filter_fir_en value: 1
attr 1: raw value: 306
attr 2: rf_bandwidth value: 393750
attr 3: rf_bandwidth_available value: [200000 1 40000000]
attr 4: rf_port_select_available value: A B
attr 5: sampling_frequency value: 1000000
attr 6: sampling_frequency_available value: [52 0833 1 30720000]
attr 7: scale value: 1.000000
altvoltage0: RX_LO (output)
8 channel-specific attributes found:
attr 0: external value: 0
attr 1: fastlock_load value: 0
attr 2: fastlock_recall ERROR: Invalid argument (-22)
attr 3: fastlock_save value: 0 144,0,233,140,39 ,65,24,8,238,85,111,221,118,252,22,166
attr 4: fastlock_store value: 0
attr 5: frequency value: 2400000000
attr 6: frequency_available value: [70000000 1 6000000000]
attr 7: powerdown value: 0
voltage2: (output)
8 channel-specific attributes found:
attr 0: filter_fir_en value: 1
attr 1: raw value: 306
attr 2: rf_bandwidth value: 393750
attr 3: rf_bandwidth_available value: [200000 1 40000000]
attr 4: rf_port_select_available value: A B
attr 5: sampling_frequency value: 1000000
attr 6: sampling_frequency_available value: [52 0833 1 30720000]
attr 7: scale value: 1.000000
temp0: (input)
1 channel-specific attributes found:
attr 0: input value: 35965
voltage0: (output)
10 channel-specific attributes found:
attr 0: filter_fir_en value: 1
attr 1: hardwaregain value: -40.000000 dB
attr 2: hardwaregain_available value: [-89.7500 00 0.250000 0.000000]
attr 3: rf_bandwidth value: 393750
attr 4: rf_bandwidth_available value: [200000 1 40000000]
attr 5: rf_port_select value: A
attr 6: rf_port_select_available value: A B
attr 7: rssi value: 0.00 dB
attr 8: sampling_frequency value: 1000000
attr 9: sampling_frequency_available value: [52 0833 1 30720000]
voltage2: (input)
13 channel-specific attributes found:
attr 0: bb_dc_offset_tracking_en value: 1
attr 1: filter_fir_en value: 1
attr 2: gain_control_mode_available value: manu al fast_attack slow_attack hybrid
attr 3: offset value: 57
attr 4: quadrature_tracking_en value: 1
attr 5: raw value: 1003
attr 6: rf_bandwidth value: 400000
attr 7: rf_bandwidth_available value: [200000 1 56000000]
attr 8: rf_dc_offset_tracking_en value: 1
attr 9: rf_port_select_available value: A_BALAN CED B_BALANCED C_BALANCED A_N A_P B_N B_P C_N C_P TX_MONITOR1 TX_MONITOR2 TX_MON ITOR1_2
attr 10: sampling_frequency value: 1000000
attr 11: sampling_frequency_available value: [52 0833 1 30720000]
attr 12: scale value: 0.305250
out: (input)
1 channel-specific attributes found:
attr 0: voltage_filter_fir_en value: 1
18 device-specific attributes found:
attr 0: calib_mode value: auto
attr 1: calib_mode_available value: auto manual manual_tx_quad tx_quad rf_dc_offs rssi_gain_step
attr 2: dcxo_tune_coarse ERROR: No such device (-19)
attr 3: dcxo_tune_coarse_available value: [0 0 0]
attr 4: dcxo_tune_fine ERROR: No such device (- 19)
attr 5: dcxo_tune_fine_available value: [0 0 0]
attr 6: ensm_mode value: fdd
attr 7: ensm_mode_available value: sleep wait a lert fdd pinctrl pinctrl_fdd_indep
attr 8: filter_fir_config value: FIR Rx: 128,4 Tx: 128,4
attr 9: gain_table_config value: <gaintable AD9 361 type=FULL dest=3 start=1300000000 end=4000000000>
-3, 0x00, 0x00, 0x20
-3, 0x00, 0x00, 0x00
-3, 0x00, 0x00, 0x00
-2, 0x00, 0x01, 0x00
-1, 0x00, 0x02, 0x00
0, 0x00, 0x03, 0x00
1, 0x00, 0x04, 0x00
2, 0x00, 0x05, 0x00
3, 0x01, 0x03, 0x20
4, 0x01, 0x04, 0x00
5, 0x01, 0x05, 0x00
6, 0x01, 0x06, 0x00
7, 0x01, 0x07, 0x00
8, 0x01, 0x08, 0x00
9, 0x01, 0x09, 0x00
10, 0x01, 0x0A, 0x00
11, 0x01, 0x0B, 0x00
12, 0x01, 0x0C, 0x00
13, 0x01, 0x0D, 0x00
14, 0x01, 0x0E, 0x00
15, 0x02, 0x09, 0x20
16, 0x02, 0x0A, 0x00
17, 0x02, 0x0B, 0x00
18, 0x02, 0x0C, 0x00
19, 0x02, 0x0D, 0x00
20, 0x02, 0x0E, 0x00
21, 0x02, 0x0F, 0x00
22, 0x02, 0x10, 0x00
23, 0x02, 0x2B, 0x20
24, 0x02, 0x2C, 0x00
25, 0x04, 0x27, 0x20
26, 0x04, 0x28, 0x00
27, 0x04, 0x29, 0x00
28, 0x04, 0x2A, 0x00
29, 0x04, 0x2B, 0x00
30, 0x24, 0x21, 0x20
31, 0x24, 0x22, 0x00
32, 0x44, 0x20, 0x20
33, 0x44, 0x21, 0x00
34, 0x44, 0x22, 0x00
35, 0x44, 0x23, 0x00
36, 0x44, 0x24, 0x00
37, 0x44, 0x25, 0x00
38, 0x44, 0x26, 0x00
39, 0x44, 0x27, 0x00
40, 0x44, 0x28, 0x00
attr 10: multichip_sync ERROR: Permission denied (-13)
attr 11: rssi_gain_step_error value: lna_error: 0 0 0 0
mixer_error: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
gain_step_calib_reg_val: 0 0 0 0 0
attr 12: rx_path_rates value: BBPLL:1024000002 A DC:32000000 R2:16000000 R1:8000000 RF:4000000 RXSAMP:1000000
attr 13: trx_rate_governor value: nominal
attr 14: trx_rate_governor_available value: nomi nal highest_osr
attr 15: tx_path_rates value: BBPLL:1024000002 D AC:32000000 T2:16000000 T1:8000000 TF:4000000 TXSAMP:1000000
attr 16: xo_correction value: 39999852
attr 17: xo_correction_available value: [3999185 3 1 40007851]
179 debug attributes found:
debug attr 0: digital_tune value: 0
debug attr 1: calibration_switch_control value: 0
debug attr 2: multichip_sync value: 0
debug attr 3: gaininfo_rx2 ERROR: Resource temp orarily unavailable (-11)
debug attr 4: gaininfo_rx1 value: 71 76 0 0 0 0 0 0
debug attr 5: bist_timing_analysis value: 0
debug attr 6: bist_tone value: 0
debug attr 7: bist_prbs value: 48
debug attr 8: loopback value: 0
debug attr 9: initialize value: 0
debug attr 10: adi,txmon-2-lo-cm value: 48
debug attr 11: adi,txmon-1-lo-cm value: 48
debug attr 12: adi,txmon-2-front-end-gain value: 2
debug attr 13: adi,txmon-1-front-end-gain value: 2
debug attr 14: adi,txmon-duration value: 8192
debug attr 15: adi,txmon-delay value: 511
debug attr 16: adi,txmon-one-shot-mode-enable va lue: 0
debug attr 17: adi,txmon-dc-tracking-enable valu e: 0
debug attr 18: adi,txmon-high-gain value: 24
debug attr 19: adi,txmon-low-gain value: 0
debug attr 20: adi,txmon-low-high-thresh value: 37000
debug attr 21: adi,gpo3-tx-delay-us value: 0
debug attr 22: adi,gpo3-rx-delay-us value: 0
debug attr 23: adi,gpo2-tx-delay-us value: 0
debug attr 24: adi,gpo2-rx-delay-us value: 0
debug attr 25: adi,gpo1-tx-delay-us value: 0
debug attr 26: adi,gpo1-rx-delay-us value: 0
debug attr 27: adi,gpo0-tx-delay-us value: 0
debug attr 28: adi,gpo0-rx-delay-us value: 0
debug attr 29: adi,gpo3-slave-tx-enable value: 0
debug attr 30: adi,gpo3-slave-rx-enable value: 0
debug attr 31: adi,gpo2-slave-tx-enable value: 0
debug attr 32: adi,gpo2-slave-rx-enable value: 0
debug attr 33: adi,gpo1-slave-tx-enable value: 0
debug attr 34: adi,gpo1-slave-rx-enable value: 0
debug attr 35: adi,gpo0-slave-tx-enable value: 0
debug attr 36: adi,gpo0-slave-rx-enable value: 0
debug attr 37: adi,gpo3-inactive-state-high-enab le value: 0
debug attr 38: adi,gpo2-inactive-state-high-enab le value: 0
debug attr 39: adi,gpo1-inactive-state-high-enab le value: 0
debug attr 40: adi,gpo0-inactive-state-high-enab le value: 0
debug attr 41: adi,gpo-manual-mode-enable-mask v alue: 0
debug attr 42: adi,gpo-manual-mode-enable value: 0
debug attr 43: adi,aux-dac2-tx-delay-us value: 0
debug attr 44: adi,aux-dac2-rx-delay-us value: 0
debug attr 45: adi,aux-dac2-active-in-alert-enab le value: 0
debug attr 46: adi,aux-dac2-active-in-tx-enable value: 0
debug attr 47: adi,aux-dac2-active-in-rx-enable value: 0
debug attr 48: adi,aux-dac2-default-value-mV val ue: 0
debug attr 49: adi,aux-dac1-tx-delay-us value: 0
debug attr 50: adi,aux-dac1-rx-delay-us value: 0
debug attr 51: adi,aux-dac1-active-in-alert-enab le value: 0
debug attr 52: adi,aux-dac1-active-in-tx-enable value: 0
debug attr 53: adi,aux-dac1-active-in-rx-enable value: 0
debug attr 54: adi,aux-dac1-default-value-mV val ue: 0
debug attr 55: adi,aux-dac-manual-mode-enable va lue: 1
debug attr 56: adi,aux-adc-decimation value: 256
debug attr 57: adi,aux-adc-rate value: 40000000
debug attr 58: adi,temp-sense-decimation value: 256
debug attr 59: adi,temp-sense-periodic-measureme nt-enable value: 1
debug attr 60: adi,temp-sense-offset-signed valu e: 206
debug attr 61: adi,temp-sense-measurement-interv al-ms value: 1000
debug attr 62: adi,elna-gaintable-all-index-enab le value: 0
debug attr 63: adi,elna-rx2-gpo1-control-enable value: 0
debug attr 64: adi,elna-rx1-gpo0-control-enable value: 0
debug attr 65: adi,elna-bypass-loss-mdB value: 0
debug attr 66: adi,elna-gain-mdB value: 0
debug attr 67: adi,elna-settling-delay-ns value: 0
debug attr 68: adi,ctrl-outs-enable-mask value: 255
debug attr 69: adi,ctrl-outs-index value: 0
debug attr 70: adi,rssi-duration value: 1000
debug attr 71: adi,rssi-wait value: 1
debug attr 72: adi,rssi-delay value: 1
debug attr 73: adi,rssi-unit-is-rx-samples-enabl e value: 0
debug attr 74: adi,rssi-restart-mode value: 3
debug attr 75: adi,fagc-adc-large-overload-inc-s teps value: 2
debug attr 76: adi,fagc-power-measurement-durati on-in-state5 value: 64
debug attr 77: adi,fagc-rst-gla-if-en-agc-pulled -high-mode value: 0
debug attr 78: adi,fagc-rst-gla-en-agc-pulled-hi gh-enable value: 0
debug attr 79: adi,fagc-rst-gla-large-lmt-overlo ad-enable value: 1
debug attr 80: adi,fagc-rst-gla-large-adc-overlo ad-enable value: 1
debug attr 81: adi,fagc-energy-lost-stronger-sig -gain-lock-exit-cnt value: 8
debug attr 82: adi,fagc-rst-gla-engergy-lost-sig -thresh-below-ll value: 10
debug attr 83: adi,fagc-rst-gla-engergy-lost-got o-optim-gain-enable value: 1
debug attr 84: adi,fagc-rst-gla-engergy-lost-sig -thresh-exceeded-enable value: 1
debug attr 85: adi,fagc-rst-gla-stronger-sig-thr esh-above-ll value: 10
debug attr 86: adi,fagc-optimized-gain-offset va lue: 5
debug attr 87: adi,fagc-rst-gla-stronger-sig-thr esh-exceeded-enable value: 1
debug attr 88: adi,fagc-use-last-lock-level-for- set-gain-enable value: 1
debug attr 89: adi,fagc-gain-index-type-after-ex it-rx-mode value: 0
debug attr 90: adi,fagc-gain-increase-after-gain -lock-enable value: 0
debug attr 91: adi,fagc-final-overrange-count va lue: 3
debug attr 92: adi,fagc-lmt-final-settling-steps value: 1
debug attr 93: adi,fagc-lpf-final-settling-steps value: 1
debug attr 94: adi,fagc-lock-level-gain-increase -upper-limit value: 5
debug attr 95: adi,fagc-lock-level-lmt-gain-incr ease-enable value: 1
debug attr 96: adi,fagc-lp-thresh-increment-step s value: 1
debug attr 97: adi,fagc-lp-thresh-increment-time value: 5
debug attr 98: adi,fagc-allow-agc-gain-increase- enable value: 0
debug attr 99: adi,fagc-state-wait-time-ns value : 260
debug attr 100: adi,fagc-dec-pow-measurement-dur ation value: 64
debug attr 101: adi,agc-immed-gain-change-if-lar ge-lmt-overload-enable value: 0
debug attr 102: adi,agc-immed-gain-change-if-lar ge-adc-overload-enable value: 0
debug attr 103: adi,agc-gain-update-interval-us value: 1000
debug attr 104: adi,agc-sync-for-gain-counter-en able value: 0
debug attr 105: adi,agc-dig-gain-step-size value : 4
debug attr 106: adi,agc-dig-saturation-exceed-co unter value: 3
debug attr 107: adi,agc-lmt-overload-large-inc-s teps value: 2
debug attr 108: adi,agc-lmt-overload-small-excee d-counter value: 10
debug attr 109: adi,agc-lmt-overload-large-excee d-counter value: 10
debug attr 110: adi,agc-adc-lmt-small-overload-p revent-gain-inc-enable value: 0
debug attr 111: adi,agc-adc-large-overload-inc-s teps value: 2
debug attr 112: adi,agc-adc-large-overload-excee d-counter value: 10
debug attr 113: adi,agc-adc-small-overload-excee d-counter value: 10
debug attr 114: adi,agc-outer-thresh-low-inc-ste ps value: 2
debug attr 115: adi,agc-outer-thresh-low value: 18
debug attr 116: adi,agc-inner-thresh-low-inc-ste ps value: 1
debug attr 117: adi,agc-inner-thresh-low value: 12
debug attr 118: adi,agc-inner-thresh-high-dec-st eps value: 1
debug attr 119: adi,agc-inner-thresh-high value: 10
debug attr 120: adi,agc-outer-thresh-high-dec-st eps value: 2
debug attr 121: adi,agc-outer-thresh-high value: 5
debug attr 122: adi,agc-attack-delay-extra-margi n-us value: 1
debug attr 123: adi,mgc-split-table-ctrl-inp-gai n-mode value: 0
debug attr 124: adi,mgc-dec-gain-step value: 2
debug attr 125: adi,mgc-inc-gain-step value: 2
debug attr 126: adi,mgc-rx2-ctrl-inp-enable valu e: 0
debug attr 127: adi,mgc-rx1-ctrl-inp-enable valu e: 0
debug attr 128: adi,gc-use-rx-fir-out-for-dec-pw r-meas-enable value: 0
debug attr 129: adi,gc-max-dig-gain value: 15
debug attr 130: adi,gc-dig-gain-enable value: 0
debug attr 131: adi,gc-low-power-thresh value: 2 4
debug attr 132: adi,gc-dec-pow-measurement-durat ion value: 8192
debug attr 133: adi,gc-lmt-overload-low-thresh v alue: 704
debug attr 134: adi,gc-lmt-overload-high-thresh value: 800
debug attr 135: adi,gc-adc-large-overload-thresh value: 58
debug attr 136: adi,gc-adc-small-overload-thresh value: 47
debug attr 137: adi,gc-adc-ovr-sample-size value : 4
debug attr 138: adi,gc-rx2-mode value: 2
debug attr 139: adi,gc-rx1-mode value: 2
debug attr 140: adi,update-tx-gain-in-alert-enab le value: 0
debug attr 141: adi,tx-attenuation-mdB value: 10 000
debug attr 142: adi,rf-tx-bandwidth-hz value: 18 000000
debug attr 143: adi,rf-rx-bandwidth-hz value: 18 000000
debug attr 144: adi,qec-tracking-slow-mode-enabl e value: 0
debug attr 145: adi,dc-offset-count-low-range va lue: 50
debug attr 146: adi,dc-offset-count-high-range v alue: 40
debug attr 147: adi,dc-offset-attenuation-low-ra nge value: 5
debug attr 148: adi,dc-offset-attenuation-high-r ange value: 6
debug attr 149: adi,dc-offset-tracking-update-ev ent-mask value: 5
debug attr 150: adi,clk-output-mode-select value : 0
debug attr 151: adi,external-rx-lo-enable value: 0
debug attr 152: adi,external-tx-lo-enable value: 0
debug attr 153: adi,xo-disable-use-ext-refclk-en able value: 1
debug attr 154: adi,tx-lo-powerdown-managed-enab le value: 1
debug attr 155: adi,trx-synthesizer-target-fref- overwrite-hz value: 80008000
debug attr 156: adi,rx1-rx2-phase-inversion-enab le value: 1
debug attr 157: adi,tx-rf-port-input-select-lock -enable value: 1
debug attr 158: adi,rx-rf-port-input-select-lock -enable value: 1
debug attr 159: adi,tx-rf-port-input-select valu e: 0
debug attr 160: adi,rx-rf-port-input-select valu e: 0
debug attr 161: adi,split-gain-table-mode-enable value: 0
debug attr 162: adi,1rx-1tx-mode-use-tx-num valu e: 1
debug attr 163: adi,1rx-1tx-mode-use-rx-num valu e: 1
debug attr 164: adi,2rx-2tx-mode-enable value: 0
debug attr 165: adi,digital-interface-tune-fir-d isable value: 1
debug attr 166: adi,digital-interface-tune-skip- mode value: 0
debug attr 167: adi,tx-fastlock-pincontrol-enabl e value: 0
debug attr 168: adi,rx-fastlock-pincontrol-enabl e value: 0
debug attr 169: adi,rx-fastlock-delay-ns value: 0
debug attr 170: adi,tx-fastlock-delay-ns value: 0
debug attr 171: adi,tdd-skip-vco-cal-enable valu e: 0
debug attr 172: adi,tdd-use-dual-synth-mode-enab le value: 0
debug attr 173: adi,debug-mode-enable value: 0
debug attr 174: adi,ensm-enable-txnrx-control-en able value: 0
debug attr 175: adi,ensm-enable-pin-pulse-mode-e nable value: 0
debug attr 176: adi,frequency-division-duplex-in dependent-mode-enable value: 0
debug attr 177: adi,frequency-division-duplex-mo de-enable value: 1
debug attr 178: direct_reg_access value: 0x0
iio:device2: xadc
10 channels found:
voltage5: vccoddr (input)
2 channel-specific attributes found:
attr 0: raw value: 1843
attr 1: scale value: 0.732421875
voltage0: vccint (input)
2 channel-specific attributes found:
attr 0: raw value: 1384
attr 1: scale value: 0.732421875
voltage4: vccpaux (input)
2 channel-specific attributes found:
attr 0: raw value: 2457
attr 1: scale value: 0.732421875
temp0: (input)
3 channel-specific attributes found:
attr 0: offset value: -2219
attr 1: raw value: 2690
attr 2: scale value: 123.040771484
voltage7: vrefn (input)
2 channel-specific attributes found:
attr 0: raw value: 1
attr 1: scale value: 0.732421875
voltage1: vccaux (input)
2 channel-specific attributes found:
attr 0: raw value: 2457
attr 1: scale value: 0.732421875
voltage2: vccbram (input)
2 channel-specific attributes found:
attr 0: raw value: 1383
attr 1: scale value: 0.732421875
voltage3: vccpint (input)
2 channel-specific attributes found:
attr 0: raw value: 1380
attr 1: scale value: 0.732421875
voltage8: (input)
2 channel-specific attributes found:
attr 0: raw value: 3686
attr 1: scale value: 0.244140625
voltage6: vrefp (input)
2 channel-specific attributes found:
attr 0: raw value: 1705
attr 1: scale value: 0.732421875
1 device-specific attributes found:
attr 0: sampling_frequency value: 961538
iio:device3: cf-ad9361-dds-core-lpc (buffer capable)
6 channels found:
voltage0: (output, index: 0, format: le:S16/16>>0)
4 channel-specific attributes found:
attr 0: calibphase value: 0.000000
attr 1: calibscale value: 1.000000
attr 2: sampling_frequency value: 1000000
attr 3: sampling_frequency_available value: 100 0000 125000
voltage1: (output, index: 1, format: le:S16/16>>0)
4 channel-specific attributes found:
attr 0: calibphase value: 0.000000
attr 1: calibscale value: 1.000000
attr 2: sampling_frequency value: 1000000
attr 3: sampling_frequency_available value: 100 0000 125000
altvoltage3: TX1_Q_F2 (output)
5 channel-specific attributes found:
attr 0: frequency value: 999420
attr 1: phase value: 0
attr 2: raw value: 1
attr 3: sampling_frequency value: 1000000
attr 4: scale value: 0.000000
altvoltage1: TX1_I_F2 (output)
5 channel-specific attributes found:
attr 0: frequency value: 999420
attr 1: phase value: 90000
attr 2: raw value: 1
attr 3: sampling_frequency value: 1000000
attr 4: scale value: 0.000000
altvoltage0: TX1_I_F1 (output)
5 channel-specific attributes found:
attr 0: frequency value: 999420
attr 1: phase value: 90000
attr 2: raw value: 1
attr 3: sampling_frequency value: 1000000
attr 4: scale value: 0.000000
altvoltage2: TX1_Q_F1 (output)
5 channel-specific attributes found:
attr 0: frequency value: 999420
attr 1: phase value: 0
attr 2: raw value: 1
attr 3: sampling_frequency value: 1000000
attr 4: scale value: 0.000000
3 buffer-specific attributes found:
attr 0: data_available value: 0
attr 1: length_align_bytes value: 8
attr 2: watermark value: 2048
1 debug attributes found:
debug attr 0: direct_reg_access value: 0x90062
iio:device4: cf-ad9361-lpc (buffer capable)
2 channels found:
voltage0: (input, index: 0, format: le:S12/16>>0)
6 channel-specific attributes found:
attr 0: calibbias value: 0
attr 1: calibphase value: 0.000000
attr 2: calibscale value: 1.000000
attr 3: samples_pps ERROR: No such device (-19)
attr 4: sampling_frequency value: 1000000
attr 5: sampling_frequency_available value: 100 0000 125000
voltage1: (input, index: 1, format: le:S12/16>>0)
6 channel-specific attributes found:
attr 0: calibbias value: 0
attr 1: calibphase value: 0.000000
attr 2: calibscale value: 1.000000
attr 3: samples_pps ERROR: No such device (-19)
attr 4: sampling_frequency value: 1000000
attr 5: sampling_frequency_available value: 100 0000 125000
3 buffer-specific attributes found:
attr 0: data_available value: 0
attr 1: length_align_bytes value: 8
attr 2: watermark value: 2048
2 debug attributes found:
debug attr 0: pseudorandom_err_check value: CH0 : PN9 : Out of Sync : PN Error
CH1 : PN9 : Out of Sync : PN Error
debug attr 1: direct_reg_access value: 0x4

i have finally solved it ! i finally managed to capture FM on IIO after trying many different antennas ! (i used one from work, a spectrum monitoring antenna) however the levels are a little weak, but since i manage to demodulate and listen and even decode RDS it is good enough for me, maybe i damaged the LNA on my Pluto? so i get reduced sensitivity or maybe it is the way the chip is built (performance from 325 MHz to 3.8GHz), anyway thanks for your help