&i2c2 {
status = "okay";
mpu6050: mpu6050@68 {
compatible = "invensense,mpu6050";
reg = <0x68>;
};
};
overlay
{
chosen {
zephyr,sram = &sram0_s;
zephyr,flash = &flash0;
zephyr,code-partition = &slot0_partition;
zephyr,sram-secure-partition = &sram0_s;
zephyr,sram-non-secure-partition = &sram0_ns;
zephyr,i2c-accel = &i2c2;
zephyr,console = &uart0;
};
};
dts
/*
* Copyright (c) 2016 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/kernel.h>
#include <zephyr/drivers/gpio.h>
#include <zephyr/drivers/i2c.h>
//#include "mpu6050.h"
//------------------------------------------------------------------------------------
//#define mpu DT_NODELABEL(mpu6050)
#define SLEEP_TIME_MS 1000
#define mpu6050_ADDR 0x68
#define mpu_REG_WAI 0x75
int main(void)
{
uint8_t who_am_i = 0;
const struct device *i2c_dev = DEVICE_DT_GET(DT_NODELABEL(mpu6050));
if (i2c_dev == NULL || !device_is_ready(i2c_dev))
{
printf("Could not get I2C device\n");
return;
}
int ret = i2c_reg_read_byte(i2c_dev, mpu6050_ADDR,
mpu_REG_WAI, &who_am_i);
if (ret)
{
printf("Unable get WAI data. (err %i)\n", ret);
return;
}
printf("Who am I: 0x%x\n", who_am_i);
}
main.c
I want to use i2c between mpu6050 ot mpu9250 and nrf9160, but I can not. in console
appear : could not get I2C device. there is a sample mpu6050. it does not work . I try to write who am i. it does not work too.
can you share sample or explain what I must do step by step.
