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Tool/software:
hello.
I have posted an inquiry using the link below, but I would like to ask if there is anything that needs to be modified in the settings.
As in the title, I want a part with MONO_LOUT output.
My current settings are:
root@am62xx-evm:~# amixer -d Simple mixer control 'PCM',0 Capabilities: pvolume Playback channels: Front Left - Front Right Limits: Playback 0 - 127 Mono: Front Left: Playback 87 [69%] [-20.00dB] Front Right: Playback 87 [69%] [-20.00dB] Simple mixer control 'Line',0 Capabilities: pvolume pswitch Playback channels: Front Left - Front Right Limits: Playback 0 - 9 Mono: Front Left: Playback 0 [0%] [0.00dB] [on] Front Right: Playback 0 [0%] [0.00dB] [on] Simple mixer control 'Line DAC',0 Capabilities: pvolume Playback channels: Front Left - Front Right Limits: Playback 0 - 118 Mono: Front Left: Playback 71 [60%] [-23.50dB] Front Right: Playback 71 [60%] [-23.50dB] Simple mixer control 'Line Line2 Bypass',0 Capabilities: volume Playback channels: Front Left - Front Right Capture channels: Front Left - Front Right Limits: 0 - 118 Front Left: 71 [60%] [-23.50dB] Front Right: 71 [60%] [-23.50dB] Simple mixer control 'Line PGA Bypass',0 Capabilities: volume Playback channels: Front Left - Front Right Capture channels: Front Left - Front Right Limits: 0 - 118 Front Left: 71 [60%] [-23.50dB] Front Right: 71 [60%] [-23.50dB] Simple mixer control 'Mono',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback 0 - 9 Mono: Playback 9 [100%] [9.00dB] [on] Simple mixer control 'Mono DAC',0 Capabilities: pvolume Playback channels: Front Left - Front Right Limits: Playback 0 - 118 Mono: Front Left: Playback 106 [90%] [-6.00dB] Front Right: Playback 106 [90%] [-6.00dB] Simple mixer control 'Mono Line2 Bypass',0 Capabilities: volume Playback channels: Front Left - Front Right Capture channels: Front Left - Front Right Limits: 0 - 118 Front Left: 71 [60%] [-23.50dB] Front Right: 71 [60%] [-23.50dB] Simple mixer control 'Mono Mixer DACL1',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Simple mixer control 'Mono Mixer DACR1',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Simple mixer control 'Mono Mixer Line2L Bypass',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'Mono Mixer Line2R Bypass',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'Mono Mixer PGAL Bypass',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'Mono Mixer PGAR Bypass',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'Mono PGA Bypass',0 Capabilities: volume Playback channels: Front Left - Front Right Capture channels: Front Left - Front Right Limits: 0 - 118 Front Left: 71 [60%] [-23.50dB] Front Right: 71 [60%] [-23.50dB] Simple mixer control 'ADC HPF Cut-off',0 Capabilities: enum Items: 'Disabled' '0.0045xFs' '0.0125xFs' '0.025xFs' Item0: 'Disabled' Item1: 'Disabled' Simple mixer control 'AGC',0 Capabilities: pswitch Playback channels: Front Left - Front Right Mono: Front Left: Playback [off] Front Right: Playback [off] Simple mixer control 'De-emphasis',0 Capabilities: pswitch Playback channels: Front Left - Front Right Mono: Front Left: Playback [off] Front Right: Playback [off] Simple mixer control 'HP',0 Capabilities: pvolume pswitch Playback channels: Front Left - Front Right Limits: Playback 0 - 9 Mono: Front Left: Playback 0 [0%] [0.00dB] [on] Front Right: Playback 0 [0%] [0.00dB] [on] Simple mixer control 'HP DAC',0 Capabilities: pvolume Playback channels: Front Left - Front Right Limits: Playback 0 - 118 Mono: Front Left: Playback 71 [60%] [-23.50dB] Front Right: Playback 71 [60%] [-23.50dB] Simple mixer control 'HP Line2 Bypass',0 Capabilities: volume Playback channels: Front Left - Front Right Capture channels: Front Left - Front Right Limits: 0 - 118 Front Left: 71 [60%] [-23.50dB] Front Right: 71 [60%] [-23.50dB] Simple mixer control 'HP PGA Bypass',0 Capabilities: volume Playback channels: Front Left - Front Right Capture channels: Front Left - Front Right Limits: 0 - 118 Front Left: 71 [60%] [-23.50dB] Front Right: 71 [60%] [-23.50dB] Simple mixer control 'HPCOM',0 Capabilities: pvolume pswitch Playback channels: Front Left - Front Right Limits: Playback 0 - 9 Mono: Front Left: Playback 0 [0%] [0.00dB] [on] Front Right: Playback 0 [0%] [0.00dB] [on] Simple mixer control 'HPCOM DAC',0 Capabilities: pvolume Playback channels: Front Left - Front Right Limits: Playback 0 - 118 Mono: Front Left: Playback 71 [60%] [-23.50dB] Front Right: Playback 71 [60%] [-23.50dB] Simple mixer control 'HPCOM Line2 Bypass',0 Capabilities: volume Playback channels: Front Left - Front Right Capture channels: Front Left - Front Right Limits: 0 - 118 Front Left: 71 [60%] [-23.50dB] Front Right: 71 [60%] [-23.50dB] Simple mixer control 'HPCOM PGA Bypass',0 Capabilities: volume Playback channels: Front Left - Front Right Capture channels: Front Left - Front Right Limits: 0 - 118 Front Left: 71 [60%] [-23.50dB] Front Right: 71 [60%] [-23.50dB] Simple mixer control 'Left AGC Attack time',0 Capabilities: enum Items: '8ms' '11ms' '16ms' '20ms' Item0: '8ms' Simple mixer control 'Left AGC Decay time',0 Capabilities: enum Items: '100ms' '200ms' '400ms' '500ms' Item0: '100ms' Simple mixer control 'Left AGC Target level',0 Capabilities: enum Items: '-5.5dB' '-8dB' '-10dB' '-12dB' '-14dB' '-17dB' '-20dB' '-24dB' Item0: '-5.5dB' Simple mixer control 'Left DAC Mux',0 Capabilities: enum Items: 'DAC_L1' 'DAC_L3' 'DAC_L2' Item0: 'DAC_L1' Simple mixer control 'Left HP Mixer DACL1',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Simple mixer control 'Left HP Mixer DACR1',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback 0 - 118 Mono: Playback 118 [100%] [0.00dB] [off] Simple mixer control 'Left HP Mixer Line2L Bypass',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'Left HP Mixer Line2R Bypass',0 Capabilities: volume volume-joined pswitch pswitch-joined Playback channels: Mono Capture channels: Mono Limits: 0 - 118 Mono: 118 [100%] [0.00dB] Playback [off] Simple mixer control 'Left HP Mixer PGAL Bypass',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'Left HP Mixer PGAR Bypass',0 Capabilities: volume volume-joined pswitch pswitch-joined Playback channels: Mono Capture channels: Mono Limits: 0 - 118 Mono: 118 [100%] [0.00dB] Playback [off] Simple mixer control 'Left HPCOM Mixer DACL1',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Simple mixer control 'Left HPCOM Mixer DACR1',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback 0 - 118 Mono: Playback 118 [100%] [0.00dB] [off] Simple mixer control 'Left HPCOM Mixer Line2L Bypass',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'Left HPCOM Mixer Line2R Bypass',0 Capabilities: volume volume-joined pswitch pswitch-joined Playback channels: Mono Capture channels: Mono Limits: 0 - 118 Mono: 118 [100%] [0.00dB] Playback [off] Simple mixer control 'Left HPCOM Mixer PGAL Bypass',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'Left HPCOM Mixer PGAR Bypass',0 Capabilities: volume volume-joined pswitch pswitch-joined Playback channels: Mono Capture channels: Mono Limits: 0 - 118 Mono: 118 [100%] [0.00dB] Playback [off] Simple mixer control 'Left HPCOM Mux',0 Capabilities: enum Items: 'differential of HPLOUT' 'constant VCM' 'single-ended' Item0: 'differential of HPLOUT' Simple mixer control 'Left Line Mixer DACL1',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Simple mixer control 'Left Line Mixer DACR1',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback 0 - 118 Mono: Playback 118 [100%] [0.00dB] [off] Simple mixer control 'Left Line Mixer Line2L Bypass',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'Left Line Mixer Line2R Bypass',0 Capabilities: volume volume-joined pswitch pswitch-joined Playback channels: Mono Capture channels: Mono Limits: 0 - 118 Mono: 118 [100%] [0.00dB] Playback [off] Simple mixer control 'Left Line Mixer PGAL Bypass',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'Left Line Mixer PGAR Bypass',0 Capabilities: volume volume-joined pswitch pswitch-joined Playback channels: Mono Capture channels: Mono Limits: 0 - 118 Mono: 118 [100%] [0.00dB] Playback [off] Simple mixer control 'Left Line1L Mux',0 Capabilities: enum Items: 'single-ended' 'differential' Item0: 'single-ended' Simple mixer control 'Left Line1R Mux',0 Capabilities: enum Items: 'single-ended' 'differential' Item0: 'single-ended' Simple mixer control 'Left Line2L Mux',0 Capabilities: enum Items: 'single-ended' 'differential' Item0: 'single-ended' Simple mixer control 'Left PGA Mixer Line1L',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Simple mixer control 'Left PGA Mixer Line1R',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'Left PGA Mixer Line2L',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'Left PGA Mixer Mic3L',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'Left PGA Mixer Mic3R',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'Output Driver Power-On time',0 Capabilities: enum Items: '0us' '10us' '100us' '1ms' '10ms' '50ms' '100ms' '200ms' '400ms' '800ms' '2s' '4s' Item0: '0us' Simple mixer control 'Output Driver Ramp-up step',0 Capabilities: enum Items: '0ms' '1ms' '2ms' '4ms' Item0: '0ms' Simple mixer control 'PGA',0 Capabilities: cvolume cswitch Capture channels: Front Left - Front Right Limits: Capture 0 - 119 Front Left: Capture 107 [90%] [53.50dB] [on] Front Right: Capture 107 [90%] [53.50dB] [on] Simple mixer control 'Right AGC Attack time',0 Capabilities: enum Items: '8ms' '11ms' '16ms' '20ms' Item0: '8ms' Simple mixer control 'Right AGC Decay time',0 Capabilities: enum Items: '100ms' '200ms' '400ms' '500ms' Item0: '100ms' Simple mixer control 'Right AGC Target level',0 Capabilities: enum Items: '-5.5dB' '-8dB' '-10dB' '-12dB' '-14dB' '-17dB' '-20dB' '-24dB' Item0: '-5.5dB' Simple mixer control 'Right DAC Mux',0 Capabilities: enum Items: 'DAC_R1' 'DAC_R3' 'DAC_R2' Item0: 'DAC_R1' Simple mixer control 'Right HP Mixer DACL1',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback 0 - 118 Mono: Playback 118 [100%] [0.00dB] [off] Simple mixer control 'Right HP Mixer DACR1',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Simple mixer control 'Right HP Mixer Line2L Bypass',0 Capabilities: volume volume-joined pswitch pswitch-joined Playback channels: Mono Capture channels: Mono Limits: 0 - 118 Mono: 118 [100%] [0.00dB] Playback [off] Simple mixer control 'Right HP Mixer Line2R Bypass',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'Right HP Mixer PGAL Bypass',0 Capabilities: volume volume-joined pswitch pswitch-joined Playback channels: Mono Capture channels: Mono Limits: 0 - 118 Mono: 118 [100%] [0.00dB] Playback [off] Simple mixer control 'Right HP Mixer PGAR Bypass',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'Right HPCOM Mixer DACL1',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback 0 - 118 Mono: Playback 118 [100%] [0.00dB] [off] Simple mixer control 'Right HPCOM Mixer DACR1',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Simple mixer control 'Right HPCOM Mixer Line2L Bypass',0 Capabilities: volume volume-joined pswitch pswitch-joined Playback channels: Mono Capture channels: Mono Limits: 0 - 118 Mono: 118 [100%] [0.00dB] Playback [off] Simple mixer control 'Right HPCOM Mixer Line2R Bypass',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'Right HPCOM Mixer PGAL Bypass',0 Capabilities: volume volume-joined pswitch pswitch-joined Playback channels: Mono Capture channels: Mono Limits: 0 - 118 Mono: 118 [100%] [0.00dB] Playback [off] Simple mixer control 'Right HPCOM Mixer PGAR Bypass',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'Right HPCOM Mux',0 Capabilities: enum Items: 'differential of HPROUT' 'constant VCM' 'single-ended' 'differential of HPLCOM' 'external feedback' Item0: 'differential of HPROUT' Simple mixer control 'Right Line Mixer DACL1',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback 0 - 118 Mono: Playback 118 [100%] [0.00dB] [off] Simple mixer control 'Right Line Mixer DACR1',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Simple mixer control 'Right Line Mixer Line2L Bypass',0 Capabilities: volume volume-joined pswitch pswitch-joined Playback channels: Mono Capture channels: Mono Limits: 0 - 118 Mono: 118 [100%] [0.00dB] Playback [off] Simple mixer control 'Right Line Mixer Line2R Bypass',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'Right Line Mixer PGAL Bypass',0 Capabilities: volume volume-joined pswitch pswitch-joined Playback channels: Mono Capture channels: Mono Limits: 0 - 118 Mono: 118 [100%] [0.00dB] Playback [off] Simple mixer control 'Right Line Mixer PGAR Bypass',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'Right Line1L Mux',0 Capabilities: enum Items: 'single-ended' 'differential' Item0: 'single-ended' Simple mixer control 'Right Line1R Mux',0 Capabilities: enum Items: 'single-ended' 'differential' Item0: 'single-ended' Simple mixer control 'Right Line2R Mux',0 Capabilities: enum Items: 'single-ended' 'differential' Item0: 'single-ended' Simple mixer control 'Right PGA Mixer Line1L',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'Right PGA Mixer Line1R',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Simple mixer control 'Right PGA Mixer Line2R',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'Right PGA Mixer Mic3L',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'Right PGA Mixer Mic3R',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] root@am62xx-evm:~#
If there is anything that needs correction, please reply.
thank you
Hi,
I'm not familiar with your code structure so it's hard for me to understand your settings. But all the settings for MONO_LOP are in Register 73-79. You need to set the signal source (LINE, PGA, or DAC) power up and unmute the signal source, set the output level, power up the driver, and then unmute the driver.
Best regards,
Jeff McPherson