case about driver BMA280

[peter.min]

Hi，

1. Please provide me with an example of BMA280

2. The SDK: replication v1.7.1

3.IC:nRF9160

4. I tried to change the BME280 driver to BMA280 driver, but the following error was reported:

'DT_N_INST_0_bosch_bma280_REG_IDX_0_VAL_ADDRESS' undeclared (first use in this function); did you mean 'DT_N_S_cpus_S_cpu_0_REG_IDX_0_VAL_ADDRESS'?

Please tell me why this mistake happened.

board path:D:\ncs\v1.7.1\peter\bma280_1\boards\arm\nrf9160dk_nrf9160

code:

bma280_1.rar

Thank you for all your assistance.
Kind regards,
Peter.Min

[Håkon Alseth]

Hi,

 

You need to apply the .overlay file, which also seems to lack the "int1-gpio" definition. I just choose one gpio (P0.27 in this case), which you can freely change to one you have available.

If using "nrf9160dk_nrf9160" as the board, you should name this file "nrf9160dk_nrf9160.overlay":

/*
 * Copyright (c) 2020, Nordic Semiconductor ASA
 *
 * SPDX-License-Identifier: Apache-2.0
 */

/*
 * Example configuration of a BME280 device on an Arduino I2C bus.
 *
 * Device address 0x77 is assumed. Your device may have a different
 * address; check your device documentation if unsure.
 */
&arduino_i2c {
	status = "okay";
	bma280@77 {
		compatible = "bosch,bma280";
		reg = <0x77>;
		int1-gpios = <&gpio0 27 0>;
		label = "BMA280_I2C";
	};
};

 

Then the build file will pick up on the sensor and should compile your project without any errors.

 

Kind regards,

Håkon