Tool/software:
Hi,
I'm trying to get an gpio Interrupt running with the push button on the SK-AM64B.
I'm using SDK 09_02_01_10.
First step, I changed device tree file k3-am642-sk.dts for gpio1_59 input:
usr_exp_gpio_pins_default: usr-exp-gpio-pins-default {
pinctrl-single,pins = <
AM64X_IOPAD(0x024C, PIN_INPUT, 7) /* (E16) UART1_RTSn */
>;
};
I tested the button press after export with /sys/class/gpio/gpio388/value. Looks good. After pressing the button I'm getting value 0.
Now I want to configure and read the IRQ with the help of a UserSpace Task.
I tried to change the device tree, with the help of another forum post:
&main_gpio1 {
status = "okay";
gpioint: gpioint {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&usr_exp_gpio_pins_default>;
interrupt-parent = <&main_gpio1>;
interrupts = <59 IRQ_TYPE_EDGE_FALLING>;
};
};
After booting, I checked /proc/interrupts. There is no new GPIO IRQ. Could you please support me to get the IRQ running?
thanks
