mustafa_meta

Thank you very much for all your help.

I was read it and sure UART is disabled. Here is output " cat /boot/armbianEnv.txt": verbosity=1 logo=disabled console=serial disp_mode=1920x1080p60 overlay_prefix=sun8i-h3 overlays=w1-gpio rootdev=UUID=4618846b-19e6-421b-8872-767a46ed5e1e rootfstype=ext4 usbstoragequirks=0x2537:0x1066:u,0x2537:0x1068:u Now a new board is came. I tried same sd card both. Old one still not working and new one works with same sdcard. Few weeks before this mistake i've tried work with rc522 module on spi1 pins. I unconsciously tried everything. If this not a software issue I think it damaged these pins. What is SPINOR role on board? Maybe I intervened in this before?

I ordered another one from the same board. I try the same steps and if we succeed we can assume that gpios is damaged.

Sorry for it "cat /proc/device-tree/soc/spi@1c69000/status" report disabled. No. OPi Zero and OPi Zero LTS. I have problem with OPi Zero LTS now. OPi Zero work fine. Is there an internal disk in the OPi card, such as eMMC flash. I guess the answer is no.

I'm sure, SPI is disabled. "cat /proc/device-tree/soc/spi@1c69000/status" is nothing show. I tried completely the same steps on another OPi Zero and everything okay with it. Is there storage for gpio config other than sd card? Maybe pins damaged ?

~cat /sys/kernel/debug/gp gpiochip0: GPIOs 0-223, parent: platform/1c20800.pinctrl, 1c20800.pinctrl: gpio-17 ( |orangepi:red:status ) out lo gpio-20 ( |reg_vcc_wifi ) out hi gpio-110 ( |onewire@0 ) out lo gpio-166 ( |cd ) in lo ACTIVE LOW gpio-204 ( |usb0_id_det ) in hi IRQ gpiochip1: GPIOs 352-383, parent: platform/1f02c00.pinctrl, 1f02c00.pinctrl: gpio-358 ( |vdd-cpux ) out hi gpio-359 ( |reset ) out hi ACTIVE LOW gpio-362 ( |orangepi:green:pwr ) out hi ~uname -a Linux orangepizero 5.4.20-sunxi #20.02.1 SMP Mon Feb 17 02:09:41 CET 2020 armv7l armv7l armv7l GNU/Linux Yes "GPIO.cleanup()" work for only in used script, read it from comment now. Thanks. But what can i do for "UserWarning: Channel PA13 is already in use...." ?

I'm using OPi LTS and cant change state of PA13-14-15-16 pins. I trying on fresh Armbian Bionic. Checked SPI is disabled. Trying this code for access pins: import OPi.GPIO as GPIO pin = "PA13" GPIO.cleanup() GPIO.setmode(GPIO.SUNXI) #GPIO.setwarnings(False) GPIO.setup(pin, GPIO.OUT) GPIO.output(pin, 1) and take this error altrough write in code "GPIO.cleanup()" ERROR: "UserWarning: Channel PA13 is already in use, continuing anyway. Use GPIO.setwarnings(False) to disable warnings." When trying "GPIO.setwarnings (False)" before change output of pin. Pin voltages when write "1" to output: PA13 -> 3V PA14 -> 3V PA15 -> 0.95V PA16 -> 3V Pin voltages when write "0" to output: PA13 -> 3V PA14 -> 2.77V PA15 -> 0.78V PA16 -> 3V How can i find problem ? What else can i do ?