Wifi initialisation fails nrf7002-nrf5340

[Lavanya_Manohar]

In our custom board we checked WIFI, facing below issues,

1. We flashed sta sample project to our custom board facing the issue below. Is there any configuration needed to address in the config file? Please provide debugging steps to resolve this issue?


2. Also tried provisioning samples in our custom board, no log response detected from the device. 
For both samples, 1.build configuration is set as nrf7002dk_nrf5340_cpuapp and 

                               2.include clock config CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y in the proj.conf file 
For sta we are able to get log but no log response for provisioning samples. How to resolve this issue?
And we can't build the samples with the nrf7002dk_nrf5340_cpuapp_ns configuration facing the issue .Why?

[Lavanya_Manohar]

Hi dejans,

In our custom board, we don't have external flash. We suspect this could be the reason for the provisioning issue.

Lavanya_Manohar said:

Now we can able to get terminal log. In that wifi error ocurring but ble is able to pair with mobile. here i share log

After resolving the Wi-Fi issue, we noticed that we can no longer retrieve terminal logs for the provisioning code.

During debugging, we found that the pointer does not exit from the z_sys_init_run_level(INIT_LEVEL_POST_KERNEL) function, which prevents it from entering our main application. Consequently, no debug logs appear in the terminal. Please see the attached image for more details.



Since we are not using external flash, is there any specific configuration we need for internal flash to address this issue?

[Lavanya_Manohar]

Hi dario,

1.Please check voltage in below points.
1. Buck En
2. Host IRQ
3. IOVDD En

2.Then check the QSPI configuration and pin for above mentioned in dts file.

Can you please explain the issue little bit more? 

[dario.sortino]

The whole custom board is powered at 3.3V

- Buck en fails to go to VDD

- I can' access directly IOVDD EN, but I can access the VDDIO pin of nRF7002 and it stays weirldy at 1.1V (IOVDD EN and VDDIO are related by the same Load Switch of the nRF7002DK)

In the dts:

&qspi {
    status = "okay";
    pinctrl-0 = <&qspi_default>;
    nrf700x: nrf7002@1 {
        status = "okay";
        compatible = "nordic,nrf700x-qspi";
        reg = <1>;
        sck-frequency = <24000000>;
        quad-mode;
        iovdd-ctrl-gpios = <&gpio0 26
                            GPIO_ACTIVE_HIGH>;
        bucken-gpios = <&gpio0 27
                        GPIO_ACTIVE_HIGH>;
        host-irq-gpios = <&gpio0 28
                          GPIO_ACTIVE_HIGH>;
    };
};


&nrf_radio_coex{
    status = "okay";
    compatible = "nordic,nrf700x-coex";
    req-gpios = <&gpio1 11 GPIO_ACTIVE_HIGH>;
    status0-gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;
    grant-gpios = <&gpio1 9 (GPIO_PULL_DOWN | GPIO_ACTIVE_LOW)>;
    swctrl1-gpios = <&gpio1 8 GPIO_ACTIVE_HIGH>;
    btrf-switch-gpios = <&gpio1 7 GPIO_ACTIVE_LOW>;
};



&pinctrl {
    qspi_default: qspi_default {
		group1 {
			psels = <NRF_PSEL(QSPI_SCK, 0, 17)>,
				<NRF_PSEL(QSPI_IO0, 0, 13)>,
				<NRF_PSEL(QSPI_IO1, 0, 14)>,
				<NRF_PSEL(QSPI_IO2, 0, 15)>,
				<NRF_PSEL(QSPI_IO3, 0, 16)>,
				<NRF_PSEL(QSPI_CSN, 0, 18)>;
		};
	};
};

[Lavanya_Manohar]

Hi dario

1. If posible, Please chcek your board host + nrf7002ek. (isolate custom board nrf7002).
 
2. And check above(nrf7002dk schmatics) showing IC session in your board.(A1 and A2).

[dejans]

Hi Lavanya_Manohar ,

Did you make any progress regarding the reported issue?

Your problem does not seem to happen due to shared antenna.
Can you please confirm that scan and station samples in NCS v2.6.1 work on your custom board as expected?

Best regards,
Dejan