ComProf Posted January 27 Posted January 27 (edited) Hello. BTT says what BTT Pi and CB1 is same, but realy not. Dunno why i brought what board. But now I owner of this "piece of ****" So. New board, clean install v25.11.2 for BigTreeTech CB1 running Armbian Linux 6.12.58-current-sunxi64 Packages: Debian stable (trixie) armbianEnv: overlays=gpu tft35_spi extraargs=fbcon=rotate:2 fbcon=rotate:2 for screen rotation, because armbian not from btt and didn`t have feature like param_tft35_spi_rotate Next, help me to determine how to enable UARTs and I2C From BIGTREETECH_Pi_V1.2.1 Hardware Pdf UART0: CPUX-UTX CPUX-RX UART2 (May work as i2c0; uart2-pi-pins; i2c0-pins ) Pi5 Pi6 UART3 (May work as i2c2; uart3-pi-pins; i2c2-pi-pins ) Pi9 Pi10 I2C (i2c4-ph-pins; spi1-pins): PH6 PH7 (must work, i`ll think i2c4-ph overlay present) All pins present in sun50i-h616-bigtreetech-cb1-sd, but didnt have overlays for it... I wish to stay uart0 for u-boot console first uart setup for klipper connections to mcu. any help? If I understand right PH6 is 7*32+6=230 gpioinfo output line 230: unnamed input consumer=kernel line 231: unnamed input consumer=kernel cat /sys/kernel/debug/gpio gpiochip0: GPIOs 0-287, parent: platform/300b000.pinctrl, 300b000.pinctrl: gpio-71 ( |spi0 CS1 ) out hi ACTIVE LOW gpio-74 ( |i2c-gpio ) out hi gpio-75 ( |spi0 CS0 ) out hi ACTIVE LOW gpio-76 ( |i2c-gpio ) out hi gpio-77 ( |spi0 CS2 ) out lo gpio-78 ( |dc ) out hi gpio-166 ( |:wifi_power ) out hi gpio-207 ( |:wifi_wake ) out hi gpio-210 ( |reset ) out hi ACTIVE LOW gpio-229 ( |led-0 ) out lo ACTIVE LOW Edited January 28 by ComProf 0 Quote
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