It's currently a very big learning curve for me so thank you all for your support here really appreciated and sorry if I sometimes miss something.
Here is the requested output
and again
/boot/firmware/config.txt
Used overlay
As I understood your answer correctly this must changed
to
Here is the requested output
Code:
$ cat /proc/interrupts CPU0 17: 12928 ARMCTRL-level 1 Edge 2000b880.mailbox 18: 75 ARMCTRL-level 2 Edge VCHIQ doorbell 27: 290880 ARMCTRL-level 35 Edge timer 34: 0 ARMCTRL-level 42 Edge vc4 35: 0 ARMCTRL-level 43 Edge 20004000.txp 42: 5094 ARMCTRL-level 50 Edge DMA IRQ 44: 5610 ARMCTRL-level 52 Edge DMA IRQ 45: 0 ARMCTRL-level 53 Edge DMA IRQ 56: 1 ARMCTRL-level 64 Edge dwc_otg, dwc_otg_pcd, dwc_otg_hcd:usb1 57: 0 ARMCTRL-level 65 Edge vc4 hvs 64: 0 ARMCTRL-level 72 Edge vc4 hdmi cec 66: 0 ARMCTRL-level 74 Edge vc4 crtc 69: 0 ARMCTRL-level 77 Edge vc4 crtc 70: 0 ARMCTRL-level 78 Edge vc4 crtc 77: 0 ARMCTRL-level 85 Edge 20804000.i2c, 20805000.i2c 80: 2826 ARMCTRL-level 88 Edge mmc0 81: 4275 ARMCTRL-level 89 Edge uart-pl011 86: 383348 ARMCTRL-level 94 Edge mmc1160: 0 pinctrl-bcm2835 4 Level 11-0020161: 0 pinctrl-bcm2835 5 Level 11-0021FIQ: usb_fiqErr: 0and again
/boot/firmware/config.txt
Code:
[all]dtoverlay=i2c-gpio,i2c_gpio_sda=10,i2c_gpio_scl=11dtoverlay=mcp23017new,bus=11,gpiopin=18Code:
pinctrl 1818: ip -- | hi // GPIO18 = inputCode:
remote:~ $ cat mcp23017new.dts// Simple test overlay on bit-bashed I2C// pull-ups on I2C GPIO's enabled!!//// swi2c-dummy-overlay.dts//// aBUGSworstnightmare#include <dt-bindings/gpio/gpio.h>#include <dt-bindings/pinctrl/bcm2835.h>/dts-v1/;/plugin/;/ { compatible = "brcm,bcm2711"; fragment@0 { target-path = "/"; __overlay__ { i2c_gpio: i2c@0 { reg = <0xffffffff>; compatible = "i2c-gpio"; gpios = <&gpio 10 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN|GPIO_PULL_UP) /* sda */ &gpio 11 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN|GPIO_PULL_UP) /* scl */ >; i2c-gpio,delay-us = <2>; /* ~100 kHz */ #address-cells = <1>; #size-cells = <0>; }; }; }; fragment@1 { target-path = "/aliases"; __overlay__ { i2c_gpio = "/i2c@0"; }; }; fragment@2 { target-path = "/__symbols__"; __overlay__ { i2c_gpio = "/i2c@0"; }; }; fragment@10 { target = <&gpio>; __overlay__ { e2prom_pins: e2prom_pins { brcm,pins = <4>; brcm,function = <1>; /* out */ }; mcp23017_20_pins: mcp23017_pins@20 { brcm,pins = <5>; brcm,function = <0>; }; mcp23017_21_pins: mcp23017_pins@21 { brcm,pins = <6>; brcm,function = <0>; }; }; }; fragment@20 { target = <&mcp23017_20>; mcp23017_20_irq: __overlay__ { #interrupt-cells=<2>; pinctrl-names = "default"; pinctrl-0 = <&mcp23017_20_pins>; interrupt-parent = <&gpio>; interrupts = <4 2>; interrupt-controller; microchip,irq-mirror; }; }; fragment@21 { target = <&mcp23017_21>; mcp23017_21_irq: __overlay__ { #interrupt-cells=<2>; pinctrl-names = "default"; pinctrl-0 = <&mcp23017_21_pins>; interrupt-parent = <&gpio>; interrupts = <5 2>; interrupt-controller; microchip,irq-mirror; }; }; fragment@30 { target = <&i2c_gpio>; __overlay__ { #address-cells = <1>; #size-cells = <0>; status = "okay"; at24@50 { compatible = "atmel,24c32","at24"; #address-cells = <1>; #size-cells = <0>; label = "dummye2prom"; address-width = <16>; num-addresses = <1>; reg = <0x50>; pagesize = <32>; size = <4096>; wp-gpios = <&gpio 4 0>; }; mcp23017_20: mcp@20 { compatible = "microchip,mcp23017"; reg = <0x20>; gpio-controller; #gpio-cells = <2>; status = "okay"; }; mcp23017_21: mcp@21 { compatible = "microchip,mcp23017"; reg = <0x21>; gpio-controller; #gpio-cells = <2>; status = "okay"; }; }; }; __overrides__ { i2c_gpio_sda = <&i2c_gpio>,"gpios:4"; i2c_gpio_scl = <&i2c_gpio>,"gpios:16"; i2c_gpio_delay_us = <&i2c_gpio>,"i2c-gpio,delay-us:0"; bus = <&i2c_gpio>, "reg:0"; };};As I understood your answer correctly this must changed
Code:
brcm,pins = <5>;Code:
brcm,pins = <18>;Statistics: Posted by koerli — Wed Dec 18, 2024 2:16 am