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About Олег Яблонский
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OrangePi Zero + SPI-boot + SD card
Олег Яблонский replied to Олег Яблонский's topic in Allwinner H2 & H3
Thank you for answers guys. It seems I understand now the way I should explore. -
OrangePi Zero + SPI-boot + SD card
Олег Яблонский replied to Олег Яблонский's topic in Allwinner H2 & H3
I want to have my SDCard storage fully encrypted including /etc and /home so it can be used with particular OrangePI Zero board. USB drive is not an option for me, so I thought for SPI-boot with some storage keys for SDCard. -
Hello, Is such configuration possible: 1. Orange Pi Zero + 2. SPI-boot with no USB storage 3. SD Card has armbian files, but it is not bootable. I red that there is configuration with SPI-boot + USB storage, but not sure if there is a guide/possibility to continue use SD Card. Is that possible, is there any guide? Thank you.
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Orange PI Zero + 4 USB-audio recording crackling
Олег Яблонский replied to Олег Яблонский's topic in Allwinner H2 & H3
tried mainline. it is the same. Also one more interesting thing may be related is that it doesn't detect more than 6 USB-Audio cards. For instance I use two hubs with 4 cards each. Any 6 of them are detected fine but not more. Or is there some limitation at usb/udev/alsa/kernel level? -
Orange PI Zero + 4 USB-audio recording crackling
Олег Яблонский replied to Олег Яблонский's topic in Allwinner H2 & H3
Ok, thank you. I will start with mainlien kernel. -
Orange PI Zero + 4 USB-audio recording crackling
Олег Яблонский replied to Олег Яблонский's topic in Allwinner H2 & H3
Sure. 3 cards (recording start immediately after reboot) orangepizero:~$ cat /proc/interrupts CPU0 CPU1 CPU2 CPU3 10: 152 0 0 0 sunxi_gpio_irq_chip xradio_irq 29: 5980 4478 6802 4509 GIC arch_timer 30: 0 0 0 0 GIC arch_timer 32: 541 0 0 0 GIC uart0 38: 24 0 0 0 GIC twi0 39: 18 0 0 0 GIC twi1 43: 0 -
Hello, I use Orange Pi Zero + 4 ports USB hub + CM108 USB-Audio cards with mic-in. All by default. Each mic is captured with sipmle commands like: arecord -v -r 44100 -c 1 -D "hw:CARD=Device_1,DEV=0" -f S16_LE > mic1.wav When 3 cards capturing simultaneous all working well. But if I start capturing with 4th card simultaneous I get two cards with crackling recorded audio. I even can see that arecord saves less data from these two cards (file size is less than with 3 cards). No error/warning provided anywhere (dmesg, syslog, arecord).