I try to get the one button sample to work. There were several details missing to be able to compile and run this sample, which was very frustrating. After editing/updating the
prj.conf: CONFIG_I2C=y
CMakeLists.txt: set(SHIELD npm1300_ek)
nrf52dk_nrf52832.overlay:
#include <zephyr/dt-bindings/pinctrl/nrf-pinctrl.h>
&i2c1 {
status = "okay";
pinctrl-0 = <&i2c1_default>;
pinctrl-1 = <&i2c1_sleep>;
pinctrl-names = "default", "sleep";
clock-frequency = <I2C_BITRATE_STANDARD>;
//clock-frequency = <10000>;
};
&i2c1_default {
group1 {
psels = <NRF_PSEL(TWIM_SDA, 0, 26)>,
<NRF_PSEL(TWIM_SCL, 0, 27)>;
bias-pull-up;
};
};
&i2c1_sleep {
group1 {
psels = <NRF_PSEL(TWIM_SDA, 0, 26)>,
<NRF_PSEL(TWIM_SCL, 0, 27)>;
low-power-enable;
};
};
My zephyr.dts i2c1 snippet:
/* node '/soc/i2c@40004000' defined in zephyr/dts/arm/nordic/nrf52832.dtsi:172 */
i2c1: i2c@40004000 {
#address-cells = < 0x1 >; /* in zephyr/dts/arm/nordic/nrf52832.dtsi:181 */
#size-cells = < 0x0 >; /* in zephyr/dts/arm/nordic/nrf52832.dtsi:182 */
reg = < 0x40004000 0x1000 >; /* in zephyr/dts/arm/nordic/nrf52832.dtsi:183 */
interrupts = < 0x4 0x1 >; /* in zephyr/dts/arm/nordic/nrf52832.dtsi:184 */
easydma-maxcnt-bits = < 0x8 >; /* in zephyr/dts/arm/nordic/nrf52832.dtsi:185 */
zephyr,pm-device-runtime-auto; /* in zephyr/dts/arm/nordic/nrf52832.dtsi:187 */
compatible = "nordic,nrf-twi"; /* in zephyr/boards/nordic/nrf52dk/nrf52dk_nrf52832.dts:188 */
status = "okay"; /* in ../../../../mnt/df01dc22-f3bf-40d5-9858-752a58c9832d/devprojects/nordicsemi/npm13xx_one_button/build/npm13xx_one_button/zephyr/boards/nrf52dk_nrf52832.overlay:9 */
pinctrl-0 = < &i2c1_default >; /* in ../../../../mnt/df01dc22-f3bf-40d5-9858-752a58c9832d/devprojects/nordicsemi/npm13xx_one_button/build/npm13xx_one_button/zephyr/boards/nrf52dk_nrf52832.overlay:10 */
pinctrl-1 = < &i2c1_sleep >; /* in ../../../../mnt/df01dc22-f3bf-40d5-9858-752a58c9832d/devprojects/nordicsemi/npm13xx_one_button/build/npm13xx_one_button/zephyr/boards/nrf52dk_nrf52832.overlay:11 */
pinctrl-names = "default",
"sleep"; /* in ../../../../mnt/df01dc22-f3bf-40d5-9858-752a58c9832d/devprojects/nordicsemi/npm13xx_one_button/build/npm13xx_one_button/zephyr/boards/nrf52dk_nrf52832.overlay:12 */
clock-frequency = < 0x186a0 >; /* in ../../../../mnt/df01dc22-f3bf-40d5-9858-752a58c9832d/devprojects/nordicsemi/npm13xx_one_button/build/npm13xx_one_button/zephyr/boards/nrf52dk_nrf52832.overlay:13 */
};
with claudes assistance/support i got it to compile and run. But an i2c scan i2c0 shows no device at all.
What minimal required steps/configuration have to setup to get I2C enabled and detect devices on the bus should be?
Trying with the nrf-connect (Ubuntu) Linux-Desktop app (2x USB -C, 1x LiPo Battery) i get NPM detected, the LiPo Battery to and can change parameters for ex. the LED's live, so the BOARD is working.
Any support/hint/help is appreciated.
