Interfacing the SPH0645 Mic with the I2S in Zephyr.

RE: Interfacing the SPH0645 Mic with the I2S in Zephyr.

Maria Gilje — Tue, 09 Apr 2024 10:45:17 GMT

Hi Qwelectric,

I can see that you got support and solved the issue in your ticket I2S configuration error when running code. . Linking it here as well to make it visible for other customers.

Best regards,

Maria

RE: Interfacing the SPH0645 Mic with the I2S in Zephyr.

Qwelectric — Sun, 17 Mar 2024 08:08:50 GMT

hello, I am having the same error as him. I2S_read() outputs -11 error. I can send my code and pin connections if you want

RE: Interfacing the SPH0645 Mic with the I2S in Zephyr.

Naeem Maroof — Mon, 27 Nov 2023 22:17:48 GMT

This code is not building for me.

Which NCS version you are using, and can you send your project as zip folder (that contains any overlays and configs)

RE: Interfacing the SPH0645 Mic with the I2S in Zephyr.

Lokesh Mahajan — Tue, 21 Nov 2023 05:56:40 GMT

You can use nrf52840dk for reproduce the issue, I am also use this same code and able to recreate the issue on dk using the P0.08

RE: Interfacing the SPH0645 Mic with the I2S in Zephyr.

Naeem Maroof — Mon, 20 Nov 2023 14:51:19 GMT

Hello,

As this is custom board, I can not reproduce your issue

On the DK for example, I would disable the uart0 as we are using the P0.08 for I2S

RE: Interfacing the SPH0645 Mic with the I2S in Zephyr.

Lokesh Mahajan — Wed, 15 Nov 2023 13:50:08 GMT

I am using the customized board which is having the inbuild microphone in it.

This is my overlay file.

&i2c0 {
	tmp108@48 {
		compatible = "ti,tmp108";
		reg = <0x48>;
		status = "okay";
		//int-gpios = <&gpio0 11 GPIO_ACTIVE_HIGH>;
	};
};

&i2c0 {
	si7210@32 {
		compatible = "silabs,si7210";
		reg = <0x32>;
		status = "okay";
		//int-gpios = <&gpio0 11 GPIO_ACTIVE_HIGH>;
	};
};

&i2c0 {
    lis2dh@19 {
        compatible = "st,lis2dh";
        reg = <0x19>;
		status = "okay";		
        label = "LIS3DH";
    };
};

&spi1 {
	status = "okay";
    cs-gpios = < &gpio0 5 GPIO_ACTIVE_LOW >;
	adxl372@0 {
		compatible = "adi,adxl372";
		reg = <0>;
        spi-max-frequency = < 125000 >;
		//spi-max-frequency = < 8000000 >;
        int1-gpios = < &gpio0 11 GPIO_ACTIVE_HIGH >;
	};
};


i2s_rx: &i2s0 {
	status = "okay";
	pinctrl-0 = <&i2s0_default>;
    pinctrl-names = "default";

};

and this was my pinctrl file.

&pinctrl {

    pwm0_default: pwm0_default {
		group1 {
			
            psels = <NRF_PSEL(PWM_OUT0, 0, 3)>;
			nordic,invert;
		};
	};

	pwm0_sleep: pwm0_sleep {
		group1 {
			
            psels = <NRF_PSEL(PWM_OUT0, 0, 3)>;
			low-power-enable;
		};
	};

    pwm1_default: pwm1_default {
		group1 {
			
            psels = <NRF_PSEL(PWM_OUT0, 0, 28)>;
			nordic,invert;
		};
	};

	pwm1_sleep: pwm1_sleep {
		group1 {
            psels = <NRF_PSEL(PWM_OUT0, 0, 28)>;
			low-power-enable;
		};
	};

    i2c0_default: i2c0_default {
        group1 {
            psels = <NRF_PSEL(TWIM_SDA, 0, 26)>,
                    <NRF_PSEL(TWIM_SCL, 0, 25)>;
        };
    };

    i2c0_sleep: i2c0_sleep {
        group1 {
            psels = <NRF_PSEL(TWIM_SDA, 0, 26)>,
                    <NRF_PSEL(TWIM_SCL, 0, 25)>;
            low-power-enable;
        };
    };
    
    spi1_default: spi1_default {
        group1 {
            psels = <NRF_PSEL(SPIM_SCK, 0, 27)>,
                <NRF_PSEL(SPIM_MOSI, 0, 22)>,
                <NRF_PSEL(SPIM_MISO, 0, 20)>;
        };
    };

    spi1_sleep: spi1_sleep {
        group1 {
            psels = <NRF_PSEL(SPIM_SCK, 0, 27)>,
                <NRF_PSEL(SPIM_MOSI, 0, 22)>,
                <NRF_PSEL(SPIM_MISO, 0, 20)>;
            low-power-enable;
        };
    };

   
i2s0_default: i2s0_default {
	group1 {
		psels = <NRF_PSEL(I2S_SDIN, 0, 8)>;           
	};
};

i2s0_sleep: i2s0_sleep {
	group1 {
		psels = <NRF_PSEL(I2S_SDIN, 0, 8)>;             
		low-power-enable;
	};
};


};

RE: Interfacing the SPH0645 Mic with the I2S in Zephyr.

Naeem Maroof — Mon, 13 Nov 2023 19:49:59 GMT

how does your hardware setup look like? please share the snap of your connections

Please also share your overlay file and the compiled dts.

/BR

RE: Interfacing the SPH0645 Mic with the I2S in Zephyr.

Lokesh Mahajan — Fri, 10 Nov 2023 06:38:04 GMT

I am getting the -11 error

RE: Interfacing the SPH0645 Mic with the I2S in Zephyr.

Naeem Maroof — Thu, 09 Nov 2023 22:46:47 GMT

Hello

The i2s_read() may return one of the following values

Please make sure your hardware connections are correct and the device is on.