wollik Posted December 11, 2021 Share Posted December 11, 2021 Armbianmonitor: http://ix.io/3HK8 Hi forum members, I enabled the 1w protocol via armbian.config and found, that the default GPIO pin assignment is set to 110 (what is PD14) root@bananapim2zero:/sys/bus/w1/devices# cat /sys/kernel/debug/gpio gpiochip0: GPIOs 0-223, parent: platform/1c20800.pinctrl, 1c20800.pinctrl: gpio-110 ( |onewire@0 ) out lo - - - dmesg | grep -E 'w1|wire' | grep -E 'Driver|gpio-' [ 5.659452] Driver for 1-wire Dallas network protocol. [ 6.408704] gpio-110 (onewire@0): enforced open drain please flag it properly in DT/ACPI DSDT/board file Please can someone tell me what phyical pin is this gpio-110 on my BPI m2 zero ? I reconfigured my board via /boot/ambianEnv.txt to use the PA6 pin what is the physical pin 7. Everything worked fine and I can read out the temperature from the onewire sensor DS18S connected on the physical pin 7. I'm ask for help on this topic because I want to use the PD14 GPIO pin since I can configure the internal pullup resistor instead using an external pullup resistor, Thanks in advance wollik 0 Quote Link to comment Share on other sites More sharing options...
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