ADALM PLUTOを購入してGNU Radioまで繋いだ
Analog DevicesのADALM PLUTOをMouserから購入しました。まだ99USDで買えたようです。
ここはちょっと余談
これに入っているAD9363というデバイスは、 LNA, 直交ミキサ, PLL, フィルタ, ADC, DAC, FIRフィルタなど、RFフロントエンドにおおよそ必要な機能が、 たった一つのICに入っています。本来なら、これらのコンポーネントをそれぞれ基板に配置して設計したほうが楽しそうですが、 かなり骨の折れる作業です。このデバイスなら、たった1つ置くだけで良いわけです。 ただし、高機能な分、お値段も素晴らしいです。Digikeyでは1個14,640円でした(11/5調べ)。
これだけの機能があれば、それほど高くは無いとも言えるのかも知れませんが。 もっとも、実際自分でレジスタを適切に設定するのは結構大変だと予想されます。 それで、メーカはデバイスドライバで簡単に使えるようにしてくれているようです。
ちなみに、これにはXilinxのZynqも入っています。これで私物で買ったZynqは3つ目です…
個々の部品代を考えると、これがたった1万円ちょっとで購入できるわけですので、 遊びで使う分にはかなりお買い得かと思います。
余談終わり
本体に加えて、アンテナ2本とSMAケーブル、USBケーブル(Type-A <-> Micro-Bタイプ)が付属しています。USBケーブルでPCに接続すると、LED1とReadyが光ります。
WikiにあるLinux Driversの内容に従って、libiio-utilsをインストールして
$ iio_info -n 192.168.2.1
すると、次のようなメッセージが表示されました。
Library version: 0.10 (git tag: v0.10)
Compiled with backends: local xml ip usb serial
IIO context created with network backend.
Backend version: 0.14 (git tag: v0.14 )
Backend description string: 192.168.2.1 Linux (none) 4.9.0-10315-gb07f3c6 #234 SMP PREEMPT Tue Apr 24 13:47:24 CEST 20
18 armv7l
IIO context has 8 attributes:
hw_model: Analog Devices PlutoSDR Rev.B (Z7010-AD9363)
hw_model_variant: 0
hw_serial: 104473ce69910015ecff2b0017e78933a0
fw_version: v0.28
ad9361-phy,xo_correction: 40000140
ad9361-phy,model: ad9363a
local,kernel: 4.9.0-10315-gb07f3c6
ip,ip-addr: 192.168.2.1
IIO context has 5 devices:
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: calibscale value: 1.000000
attr 1: calibphase value: 0.000000
attr 2: sampling_frequency_available value: 30719999 3839999
attr 3: sampling_frequency value: 30719999
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_available value: 30719999 3839999
attr 3: sampling_frequency value: 30719999
altvoltage3: TX1_Q_F2 (output)
5 channel-specific attributes found:
attr 0: raw value: 1
attr 1: phase value: 0
attr 2: frequency value: 9279985
attr 3: scale value: 0.000000
attr 4: sampling_frequency value: 30719999
altvoltage1: TX1_I_F2 (output)
5 channel-specific attributes found:
attr 0: phase value: 90000
attr 1: scale value: 0.000000
attr 2: raw value: 1
attr 3: frequency value: 9279985
attr 4: sampling_frequency value: 30719999
altvoltage0: TX1_I_F1 (output)
5 channel-specific attributes found:
attr 0: phase value: 90000
attr 1: scale value: 0.000000
attr 2: frequency value: 9279985
attr 3: raw value: 1
attr 4: sampling_frequency value: 30719999
altvoltage2: TX1_Q_F1 (output)
5 channel-specific attributes found:
attr 0: raw value: 1
attr 1: phase value: 0
attr 2: frequency value: 9279985
attr 3: scale value: 0.000000
attr 4: sampling_frequency value: 30719999
1 debug attributes found:
debug attr 0: direct_reg_access value: 0x90062
iio:device1: ad9361-phy
9 channels found:
altvoltage1: TX_LO (output)
8 channel-specific attributes found:
attr 0: external value: 0
attr 1: frequency value: 2450000000
attr 2: fastlock_store value: 0
attr 3: fastlock_recall ERROR: Invalid argument (-22)
attr 4: powerdown value: 0
attr 5: fastlock_save value: 0 238,206,235,207,206,253,207,233,206,206,123,253,206,206,206,206
attr 6: frequency_available value: [325000000 1 3800000000]
attr 7: fastlock_load value: 0
voltage0: (input)
15 channel-specific attributes found:
attr 0: hardwaregain_available value: [-3 1 71]
attr 1: hardwaregain value: 71.000000 dB
attr 2: rssi value: 115.75 dB
attr 3: rf_port_select value: A_BALANCED
attr 4: gain_control_mode value: slow_attack
attr 5: rf_port_select_available value: A_BALANCED B_BALANCED C_BALANCED A_N A_P B_N B_P C_N C_P TX_MONITOR1 TX_MONITOR2 TX_MONITOR1_2
attr 6: rf_bandwidth value: 18000000
attr 7: rf_dc_offset_tracking_en value: 1
attr 8: sampling_frequency_available value: [2083333 1 61440000]
attr 9: quadrature_tracking_en value: 1
attr 10: sampling_frequency value: 30719999
attr 11: gain_control_mode_available value: manual fast_attack slow_attack hybrid
attr 12: filter_fir_en value: 0
attr 13: rf_bandwidth_available value: [200000 1 56000000]
attr 14: bb_dc_offset_tracking_en value: 1
voltage3: (output)
8 channel-specific attributes found:
attr 0: scale value: 1.000000
attr 1: raw value: 306
attr 2: sampling_frequency_available value: [2083333 1 61440000]
attr 3: rf_port_select_available value: A B
attr 4: filter_fir_en value: 0
attr 5: sampling_frequency value: 30719999
attr 6: rf_bandwidth_available value: [200000 1 40000000]
attr 7: rf_bandwidth value: 18000000
altvoltage0: RX_LO (output)
8 channel-specific attributes found:
attr 0: frequency_available value: [325000000 1 3800000000]
attr 1: fastlock_save value: 0 244,244,244,244,244,244,244,228,244,244,244,244,244,244,244,252
attr 2: powerdown value: 0
attr 3: fastlock_load value: 0
attr 4: fastlock_store value: 0
attr 5: frequency value: 2400000000
attr 6: external value: 0
attr 7: fastlock_recall ERROR: Invalid argument (-22)
voltage2: (output)
8 channel-specific attributes found:
attr 0: raw value: 306
attr 1: scale value: 1.000000
attr 2: sampling_frequency_available value: [2083333 1 61440000]
attr 3: rf_port_select_available value: A B
attr 4: filter_fir_en value: 0
attr 5: sampling_frequency value: 30719999
attr 6: rf_bandwidth_available value: [200000 1 40000000]
attr 7: rf_bandwidth value: 18000000
temp0: (input)
1 channel-specific attributes found:
attr 0: input value: 36842
voltage0: (output)
10 channel-specific attributes found:
attr 0: rf_port_select value: A
attr 1: hardwaregain value: -10.000000 dB
attr 2: rssi value: 0.00 dB
attr 3: hardwaregain_available value: [0 250 89750]
attr 4: sampling_frequency_available value: [2083333 1 61440000]
attr 5: rf_port_select_available value: A B
attr 6: filter_fir_en value: 0
attr 7: sampling_frequency value: 30719999
attr 8: rf_bandwidth_available value: [200000 1 40000000]
attr 9: rf_bandwidth value: 18000000
voltage2: (input)
13 channel-specific attributes found:
attr 0: offset value: 57
attr 1: scale value: 0.305250
attr 2: raw value: 892
attr 3: rf_port_select_available value: A_BALANCED B_BALANCED C_BALANCED A_N A_P B_N B_P C_N C_P TX_MONITOR1 TX_MONITOR2 TX_MONITOR1_2
attr 4: rf_bandwidth value: 18000000
attr 5: rf_dc_offset_tracking_en value: 1
attr 6: sampling_frequency_available value: [2083333 1 61440000]
attr 7: quadrature_tracking_en value: 1
attr 8: sampling_frequency value: 30719999
attr 9: gain_control_mode_available value: manual fast_attack slow_attack hybrid
attr 10: filter_fir_en value: 0
attr 11: rf_bandwidth_available value: [200000 1 56000000]
attr 12: bb_dc_offset_tracking_en value: 1
out: (input)
1 channel-specific attributes found:
attr 0: voltage_filter_fir_en value: 0
18 device-specific attributes found:
attr 0: dcxo_tune_coarse ERROR: No such device (-19)
attr 1: rx_path_rates value: BBPLL:983039994 ADC:245759998 R2:122879999 R1:61439999 RF:30719999 RXSAMP:30719999
attr 2: trx_rate_governor value: nominal
attr 3: calib_mode_available value: auto manual manual_tx_quad tx_quad rf_dc_offs rssi_gain_step
attr 4: xo_correction_available value: [39992140 1 40008140]
attr 5: gain_table_config ERROR: Input/output error (-5)
attr 6: dcxo_tune_fine ERROR: No such device (-19)
attr 7: dcxo_tune_fine_available value: [0 0 0]
attr 8: ensm_mode_available value: sleep wait alert fdd pinctrl pinctrl_fdd_indep
attr 9: multichip_sync ERROR: Permission denied (-13)
attr 10: 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 11: dcxo_tune_coarse_available value: [0 0 0]
attr 12: tx_path_rates value: BBPLL:983039994 DAC:122879999 T2:122879999 T1:61439999 TF:30719999 TXSAMP:30719999
attr 13: trx_rate_governor_available value: nominal highest_osr
attr 14: xo_correction value: 40000140
attr 15: ensm_mode value: fdd
attr 16: filter_fir_config value: FIR Rx: 0,0 Tx: 0,0
attr 17: calib_mode value: auto
175 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 temporarily 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: 0
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 value: 0
debug attr 17: adi,txmon-dc-tracking-enable value: 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-enable value: 0
debug attr 38: adi,gpo2-inactive-state-high-enable value: 0
debug attr 39: adi,gpo1-inactive-state-high-enable value: 0
debug attr 40: adi,gpo0-inactive-state-high-enable value: 0
debug attr 41: adi,gpo-manual-mode-enable-mask value: 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-enable 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 value: 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-enable 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 value: 0
debug attr 55: adi,aux-dac-manual-mode-enable value: 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-measurement-enable value: 1
debug attr 60: adi,temp-sense-offset-signed value: 206
debug attr 61: adi,temp-sense-measurement-interval-ms value: 1000
debug attr 62: adi,elna-gaintable-all-index-enable 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-enable value: 0
debug attr 74: adi,rssi-restart-mode value: 3
debug attr 75: adi,fagc-adc-large-overload-inc-steps value: 2
debug attr 76: adi,fagc-power-measurement-duration-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-high-enable value: 0
debug attr 79: adi,fagc-rst-gla-large-lmt-overload-enable value: 1
debug attr 80: adi,fagc-rst-gla-large-adc-overload-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-goto-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-thresh-above-ll value: 10
debug attr 86: adi,fagc-optimized-gain-offset value: 5
debug attr 87: adi,fagc-rst-gla-stronger-sig-thresh-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-exit-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 value: 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-increase-enable value: 1
debug attr 96: adi,fagc-lp-thresh-increment-steps 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-duration value: 64
debug attr 101: adi,agc-immed-gain-change-if-large-lmt-overload-enable value: 0
debug attr 102: adi,agc-immed-gain-change-if-large-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-enable value: 0
debug attr 105: adi,agc-dig-gain-step-size value: 4
debug attr 106: adi,agc-dig-saturation-exceed-counter value: 3
debug attr 107: adi,agc-lmt-overload-large-inc-steps value: 2
debug attr 108: adi,agc-lmt-overload-small-exceed-counter value: 10
debug attr 109: adi,agc-lmt-overload-large-exceed-counter value: 10
debug attr 110: adi,agc-adc-lmt-small-overload-prevent-gain-inc-enable value: 0
debug attr 111: adi,agc-adc-large-overload-inc-steps value: 2
debug attr 112: adi,agc-adc-large-overload-exceed-counter value: 10
debug attr 113: adi,agc-adc-small-overload-exceed-counter value: 10
debug attr 114: adi,agc-outer-thresh-low-inc-steps value: 2
debug attr 115: adi,agc-outer-thresh-low value: 18
debug attr 116: adi,agc-inner-thresh-low-inc-steps value: 1
debug attr 117: adi,agc-inner-thresh-low value: 12
debug attr 118: adi,agc-inner-thresh-high-dec-steps value: 1
debug attr 119: adi,agc-inner-thresh-high value: 10
debug attr 120: adi,agc-outer-thresh-high-dec-steps value: 2
debug attr 121: adi,agc-outer-thresh-high value: 5
debug attr 122: adi,agc-attack-delay-extra-margin-us value: 1
debug attr 123: adi,mgc-split-table-ctrl-inp-gain-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 value: 0
debug attr 127: adi,mgc-rx1-ctrl-inp-enable value: 0
debug attr 128: adi,gc-use-rx-fir-out-for-dec-pwr-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: 24
debug attr 132: adi,gc-dec-pow-measurement-duration value: 8192
debug attr 133: adi,gc-lmt-overload-low-thresh value: 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-enable value: 0
debug attr 141: adi,tx-attenuation-mdB value: 10000
debug attr 142: adi,rf-tx-bandwidth-hz value: 18000000
debug attr 143: adi,rf-rx-bandwidth-hz value: 18000000
debug attr 144: adi,qec-tracking-slow-mode-enable value: 0
debug attr 145: adi,dc-offset-count-low-range value: 50
debug attr 146: adi,dc-offset-count-high-range value: 40
debug attr 147: adi,dc-offset-attenuation-low-range value: 5
debug attr 148: adi,dc-offset-attenuation-high-range value: 6
debug attr 149: adi,dc-offset-tracking-update-event-mask value: 5
debug attr 150: adi,clk-output-mode-select value: 0
debug attr 151: adi,trx-synthesizer-target-fref-overwrite-hz value: 80008000
debug attr 152: adi,rx1-rx2-phase-inversion-enable value: 0
debug attr 153: adi,tx-rf-port-input-select-lock-enable value: 1
debug attr 154: adi,rx-rf-port-input-select-lock-enable value: 1
debug attr 155: adi,tx-rf-port-input-select value: 0
debug attr 156: adi,rx-rf-port-input-select value: 0
debug attr 157: adi,split-gain-table-mode-enable value: 0
debug attr 158: adi,1rx-1tx-mode-use-tx-num value: 1
debug attr 159: adi,1rx-1tx-mode-use-rx-num value: 1
debug attr 160: adi,2rx-2tx-mode-enable value: 0
debug attr 161: adi,digital-interface-tune-fir-disable value: 1
debug attr 162: adi,digital-interface-tune-skip-mode value: 0
debug attr 163: adi,tx-fastlock-pincontrol-enable value: 0
debug attr 164: adi,rx-fastlock-pincontrol-enable value: 0
debug attr 165: adi,rx-fastlock-delay-ns value: 0
debug attr 166: adi,tx-fastlock-delay-ns value: 0
debug attr 167: adi,tdd-skip-vco-cal-enable value: 0
debug attr 168: adi,tdd-use-dual-synth-mode-enable value: 0
debug attr 169: adi,debug-mode-enable value: 0
debug attr 170: adi,ensm-enable-txnrx-control-enable value: 0
debug attr 171: adi,ensm-enable-pin-pulse-mode-enable value: 0
debug attr 172: adi,frequency-division-duplex-independent-mode-enable value: 0
debug attr 173: adi,frequency-division-duplex-mode-enable value: 1
debug attr 174: direct_reg_access value: 0x0
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: calibphase value: 0.000000
attr 1: calibbias value: 0
attr 2: calibscale value: 1.000000
attr 3: samples_pps ERROR: No such device (-19)
attr 4: sampling_frequency_available value: 30719999 3839999
attr 5: sampling_frequency value: 30719999
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_available value: 30719999 3839999
attr 5: sampling_frequency value: 30719999
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: 0x0
iio:device2: xadc
10 channels found:
voltage5: vccoddr (input)
2 channel-specific attributes found:
attr 0: scale value: 0.732421875
attr 1: raw value: 1848
voltage0: vccint (input)
2 channel-specific attributes found:
attr 0: raw value: 1385
attr 1: scale value: 0.732421875
voltage4: vccpaux (input)
2 channel-specific attributes found:
attr 0: scale value: 0.732421875
attr 1: raw value: 2455
temp0: (input)
3 channel-specific attributes found:
attr 0: scale value: 123.040771484
attr 1: offset value: -2219
attr 2: raw value: 2646
voltage7: vrefn (input)
2 channel-specific attributes found:
attr 0: scale value: 0.732421875
attr 1: raw value: 8
voltage1: vccaux (input)
2 channel-specific attributes found:
attr 0: scale value: 0.732421875
attr 1: raw value: 2457
voltage2: vccbram (input)
2 channel-specific attributes found:
attr 0: scale value: 0.732421875
attr 1: raw value: 1377
voltage3: vccpint (input)
2 channel-specific attributes found:
attr 0: scale value: 0.732421875
attr 1: raw value: 1377
voltage8: (input)
2 channel-specific attributes found:
attr 0: raw value: 3693
attr 1: scale value: 0.244140625
voltage6: vrefp (input)
2 channel-specific attributes found:
attr 0: raw value: 1711
attr 1: scale value: 0.732421875
1 device-specific attributes found:
attr 0: sampling_frequency value: 961538
iio:device0: adm1177
2 channels found:
voltage0: (input)
2 channel-specific attributes found:
attr 0: scale value: 6.433105468
attr 1: raw value: 769
current0: (input)
2 channel-specific attributes found:
attr 0: raw value: 805
attr 1: scale value: 0.516601562
コマンドラインで
$ iio_readdev -n 192.168.2.1 -s 64 cf-ad9361-lpc | hexdump -x
とすることで、
0000000 0008 0033 0026 002a 0015 002e fff2 ffff
0000010 fff0 0006 ffee 0023 ffd6 ffca fff8 ffdd
0000020 0005 0004 000a 0001 ffff ffed 000c ffd8
0000030 0019 ffea 0015 fff6 ffe3 0005 ffe7 0010
0000040 ffe7 002f 0013 001f 0037 0019 002b 0034
0000050 fff4 0035 ffe5 0004 ffe8 ffe3 0007 ffdb
0000060 fff3 ffb1 ffda ffcb ffd6 0001 ffff 002a
0000070 0005 0015 0005 001a 001b ffe5 001a ffd3
0000080 0011 ffc0 0049 ffcf 002c fffa 0016 0011
0000090 000d fffc 002f fff6 0022 000c 001a fffb
00000a0 002c ffdd 0015 ffea fffe 0010 ffd8 000e
00000b0 ffeb 0004 fff0 000c fffa 0039 ffe1 001e
00000c0 fff6 ffe9 0011 0008 0028 0021 0010 000a
00000d0 001b ffc0 003a ffe4 fffa 001c fff8 fffe
00000e0 004e fffc 003b fffa 001e ffe4 001c 0015
00000f0 ffff 0020 ffdb 0005 ffc1 ffeb ffd5 0016
のように値が読めているようです。
まだlibiioについてよく分かっていないのですが、ひとまずUbuntuだと、libad9361-dev, libgnuradio-iio0, libad9361-0あたりとGNU Radioをパッケージでインストールすると、GNU RadioのページにあるPlutoSDR SourceがGNU Radio CompanionのGUIから使用できるようになりました。
上記画面のように、PlutoSDR Sourceにip:pluto.local(USB接続時はこれで行けるようです)と入力し、後は適当に入力してFFTを繋いでみたところ、上のような画面が得られました。設定の意味についてはこれから調査したいと思いますが、おそらく中心周波数900MHzで信号が見えているのだと思います。この実験では、標準添付されていたアンテナをRXに繋いでいます。
また、dmesgの内容は次のようになっていました。
Booting Linux on physical CPU 0x0
Linux version 4.9.0-10315-gb07f3c6 (michael@mhenneri-D06) (gcc version 4.9.2 (Sourcery CodeBench Lite 2015.05-17) ) #234 SMP PREEMPT Tue Apr 24 13:47:24 CEST 2018
CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7), cr=18c5387d
CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
OF: fdt:Machine model: Analog Devices PlutoSDR Rev.B (Z7010/AD9363)
cma: Reserved 256 MiB at 0x0e400000
Memory policy: Data cache writealloc
On node 0 totalpages: 131072
free_area_init_node: node 0, pgdat c0654e40, node_mem_map dfb77000
Normal zone: 1024 pages used for memmap
Normal zone: 0 pages reserved
Normal zone: 131072 pages, LIFO batch:31
percpu: Embedded 13 pages/cpu @dfb51000 s23744 r8192 d21312 u53248
pcpu-alloc: s23744 r8192 d21312 u53248 alloc=13*4096
pcpu-alloc: [0] 0 [0] 1
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 130048
Kernel command line: console=ttyPS0,115200 maxcpus=1 rootfstype=ramfs root=/dev/ram0 rw quiet loglevel=4 uboot=U-Boot PlutoSDR v0.20-PlutoSDR-00043-gefdb9e8 (Apr 24 2018 - 16:16:28 +0200)
PID hash table entries: 2048 (order: 1, 8192 bytes)
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Memory: 245148K/524288K available (4564K kernel code, 246K rwdata, 1244K rodata, 232K init, 150K bss, 16996K reserved, 262144K cma-reserved, 0K highmem)
Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
vmalloc : 0xe0800000 - 0xff800000 ( 496 MB)
lowmem : 0xc0000000 - 0xe0000000 ( 512 MB)
pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
.text : 0xc0008000 - 0xc047d3dc (4565 kB)
.init : 0xc05de000 - 0xc0618000 ( 232 kB)
.data : 0xc0618000 - 0xc0655a40 ( 247 kB)
.bss : 0xc0655a40 - 0xc067b3d0 ( 151 kB)
Preemptible hierarchical RCU implementation.
Build-time adjustment of leaf fanout to 32.
RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
RCU: Adjusting geometry for rcu_fanout_leaf=32, nr_cpu_ids=2
NR_IRQS:16 nr_irqs:16 16
efuse mapped to e0800000
slcr mapped to e0802000
L2C: platform modifies aux control register: 0x72360000 -> 0x72760000
L2C: DT/platform modifies aux control register: 0x72360000 -> 0x72760000
L2C-310 erratum 769419 enabled
L2C-310 enabling early BRESP for Cortex-A9
L2C-310 full line of zeros enabled for Cortex-A9
L2C-310 ID prefetch enabled, offset 1 lines
L2C-310 dynamic clock gating enabled, standby mode enabled
L2C-310 cache controller enabled, 8 ways, 512 kB
L2C-310: CACHE_ID 0x410000c8, AUX_CTRL 0x76760001
zynq_clock_init: clkc starts at e0802100
Zynq clock init
sched_clock: 64 bits at 333MHz, resolution 3ns, wraps every 4398046511103ns
clocksource: arm_global_timer: mask: 0xffffffffffffffff max_cycles: 0x4ce07af025, max_idle_ns: 440795209040 ns
Switching to timer-based delay loop, resolution 3ns
clocksource: ttc_clocksource: mask: 0xffff max_cycles: 0xffff, max_idle_ns: 537538477 ns
timer #0 at e080a000, irq=17
Console: colour dummy device 80x30
Calibrating delay loop (skipped), value calculated using timer frequency.. 666.66 BogoMIPS (lpj=3333333)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
CPU: Testing write buffer coherency: ok
CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
Setting up static identity map for 0x82c0 - 0x8318
Brought up 1 CPUs
SMP: Total of 1 processors activated (666.66 BogoMIPS).
CPU: All CPU(s) started in SVC mode.
devtmpfs: initialized
VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
pinctrl core: initialized pinctrl subsystem
NET: Registered protocol family 16
DMA: preallocated 256 KiB pool for atomic coherent allocations
cpuidle: using governor ladder
hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
hw-breakpoint: maximum watchpoint size is 4 bytes.
zynq-ocm f800c000.ocmc: ZYNQ OCM pool: 256 KiB @ 0xe0840000
zynq-pinctrl 700.pinctrl: zynq pinctrl initialized
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
EDAC MC: Ver: 3.0.0
clocksource: Switched to clocksource arm_global_timer
NET: Registered protocol family 2
TCP established hash table entries: 4096 (order: 2, 16384 bytes)
TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
UDP hash table entries: 256 (order: 1, 8192 bytes)
UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
NET: Registered protocol family 1
Trying to unpack rootfs image as initramfs...
Freeing initrd memory: 5152K (de621000 - deb29000)
hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available
futex hash table entries: 512 (order: 3, 32768 bytes)
workingset: timestamp_bits=30 max_order=17 bucket_order=0
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
e0001000.serial: ttyPS0 at MMIO 0xe0001000 (irq = 25, base_baud = 6249999) is a xuartps
console [ttyPS0] enabled
xdevcfg f8007000.devcfg: ioremap 0xf8007000 to e0818000
brd: module loaded
loop: module loaded
m25p80 spi32765.0: SPI-NOR-UniqueID 104473ce69910015ecff2b0017e78933a0
m25p80 spi32765.0: n25q256a (32768 Kbytes)
4 ofpart partitions found on MTD device spi32765.0
Creating 4 MTD partitions on "spi32765.0":
0x000000000000-0x000000100000 : "qspi-fsbl-uboot"
0x000000100000-0x000000120000 : "qspi-uboot-env"
0x000000120000-0x000000200000 : "qspi-nvmfs"
0x000000200000-0x000002000000 : "qspi-linux"
libphy: Fixed MDIO Bus: probed
usbcore: registered new interface driver rt2500usb
usbcore: registered new interface driver rt73usb
usbcore: registered new interface driver rt2800usb
usbcore: registered new interface driver rtl8187
usbcore: registered new interface driver rtl8192cu
usbcore: registered new interface driver rtl8xxxu
usbcore: registered new interface driver r8152
usbcore: registered new interface driver lan78xx
usbcore: registered new interface driver asix
usbcore: registered new interface driver ax88179_178a
usbcore: registered new interface driver smsc75xx
usbcore: registered new interface driver smsc95xx
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
usbcore: registered new interface driver usb-storage
usbcore: registered new interface driver usbserial
usbcore: registered new interface driver usbserial_generic
usbserial: USB Serial support registered for generic
usbcore: registered new interface driver ftdi_sio
usbserial: USB Serial support registered for FTDI USB Serial Device
e0002000.usb supply vbus not found, using dummy regulator
ULPI transceiver vendor/product ID 0x0424/0x0007
Found SMSC USB3320 ULPI transceiver.
ULPI integrity check: passed.
mousedev: PS/2 mouse device common for all mice
i2c /dev entries driver
cdns-wdt f8005000.watchdog: Xilinx Watchdog Timer at e083a000 with timeout 10s
Xilinx Zynq CpuIdle Driver started
ledtrig-cpu: registered to indicate activity on CPUs
hidraw: raw HID events driver (C) Jiri Kosina
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
usbcore: registered new interface driver r8712u
usbcore: registered new interface driver r8188eu
ad9361 spi32766.0: ad9361_probe : enter (ad9363a)
random: fast init done
ad9361 spi32766.0: ad9361_probe : AD936x Rev 2 successfully initialized
cf_axi_dds 79024000.cf-ad9361-dds-core-lpc: Analog Devices CF_AXI_DDS_DDS MASTER (9.00.b) at 0x79024000 mapped to 0xe083e000, probed DDS AD9364
NET: Registered protocol family 17
Registering SWP/SWPB emulation handler
cf_axi_adc 79020000.cf-ad9361-lpc: ADI AIM (10.00.b) at 0x79020000 mapped to 0xe0938000, probed ADC AD9364 as MASTER
input: gpio_keys as /devices/soc0/gpio_keys/input/input0
Freeing unused kernel memory: 232K (c05de000 - c0618000)
This architecture does not have kernel memory protection.
file system registered
using random self ethernet address
using random host ethernet address
Mass Storage Function, version: 2009/09/11
LUN: removable file: (no medium)
read descriptors
read strings
usb0: HOST MAC 00:e0:22:35:13:e7
usb0: MAC 00:05:f7:fb:eb:ec
random: crng init done
configfs-gadget gadget: high-speed config #1: c
ひとまず簡単な動作確認はできましたので、これから色々遊んでみようと思います。