Facing HardFault issue while using SPI peripheral in any callback function in nrf Connect SDK 2.4.0

Question

Hi, I want to implement a flow for callback/interrupt driven code. In the whole process I have to read and write data over SPI. Here I am using nrf52840 as SPI Master and ESP32 dev kit as Slave. When I try to communicate normally in a while in main.c everything works fine. But when I add the command for Send data over SPI in SPI callback handler , then I get hard fault error in next transaction while it goes to set the CS pin of SPI line.

This is the code which I am using to send command to slave

void readDataFromSlave(uint8_t slave_id, uint8_t *txBuffer, uint8_t txLength, uint8_t *rxBuffer, uint8_t rxLength)
{
	int err;

	struct spi_buf tx_spi_bufs[] = {
		{.buf = txBuffer, .len = txLength }
	};

	struct spi_buf_set spi_tx_buffer_set = {
		.buffers = tx_spi_bufs,
		.count = 1
	};

	struct spi_buf rx_spi_bufs[] = {
		{.buf = rxBuffer, .len = rxLength}
	};

	struct spi_buf_set spi_rx_buffer_set = {
		.buffers = rx_spi_bufs,
		.count = 1
	};

	if(slave_id == Cam1Slave)
	{
		gpio_pin_set(gpio0_dev,GPIO_0_CS,0);
		#ifdef USE_CB
			err = spi_transceive_cb(spi1_dev,&spi_cfg,&spi_tx_buffer_set,&spi_rx_buffer_set,SPI1CallbackHandler,rxBuffer);
		#else
			err = spi_transceive(spi1_dev,&spi_cfg,&spi_tx_buffer_set,&spi_rx_buffer_set);
		#endif
		
		gpio_pin_set(gpio0_dev,GPIO_0_CS,1);
	}
	
}

This is SPI callback function I get the Hard fault issue when code reached and go for sending the command agani

void SPI1CallbackHandler(const struct device *dev, int result, void *data){
	
	if(result == 0){
		 printk("SPI device %s: Device data - %d ------Transceive operation successful\n", dev->name, *(uint8_t*)data);
		 checkEspReady(0);
		transCount++;
	}
	else{
	  	printk("SPI device %s: Device data - %d  -----Transceive operation failed\n", dev->name, *(uint8_t*)data);
	}
}

This is the overlay file for the project

// To get started, press Ctrl+Space to bring up the completion menu and view the available nodes.

// You can also use the buttons in the sidebar to perform actions on nodes.
// Actions currently available include:

// * Enabling / disabling the node
// * Adding the bus to a bus
// * Removing the node
// * Connecting ADC channels

// For more help, browse the DeviceTree documentation at https://docs.zephyrproject.org/latest/guides/dts/index.html
// You can also visit the nRF DeviceTree extension documentation at https://nrfconnect.github.io/vscode-nrf-connect/devicetree/nrfdevicetree.html

/ {
	chosen {
		nordic,nus-uart = &uart0;
	};
};

&pinctrl {

    spi1_default: spi1_default {
    group1 {
        psels = <NRF_PSEL(SPIM_SCK, 1, 8)>,
            <NRF_PSEL(SPIM_MOSI, 1, 9)>,
            <NRF_PSEL(SPIM_MISO, 0, 11)>;
		};
	};

	spi2_default: spi2_default {
		group1 {
			psels = <NRF_PSEL(SPIM_MISO, 0, 13)>,
           <NRF_PSEL(SPIM_MOSI, 0, 17)>,
           <NRF_PSEL(SPIM_SCK, 0, 16)>;
		};
	};
};

&spi1 {
	compatible = "nordic,nrf-spi";
	status = "okay";
	pinctrl-0 = <&spi1_default>;
	pinctrl-1 = <&spi1_sleep>;
	pinctrl-names = "default", "sleep";
};

&spi2 {
	compatible = "nordic,nrf-spi";
	status = "okay";
	pinctrl-0 = <&spi2_default>;
	pinctrl-1 = <&spi2_sleep>;
	pinctrl-names = "default", "sleep";
};

&uart0_default {
	group1 {
		psels = <NRF_PSEL(UART_TX, 0, 24)>, <NRF_PSEL(UART_RTS, 0, 5)>, <NRF_PSEL(UART_RX, 0, 25)>;
	};

	group2 {
		psels = <NRF_PSEL(UART_CTS, 0, 7)>;
	};
};

&uart0 {
	compatible = "nordic,nrf-uarte";
	status = "okay";
	current-speed = <115200>;
	pinctrl-0 = <&uart0_default>;
};

&spi3 {
    status = "disabled";
};

// &qspi_default {
//     group1 {
//         psels = <NRF_PSEL(QSPI_IO2, 0, 22)>;
//     };

//     group2 {
//         psels = <NRF_PSEL(QSPI_IO3, 1, 0)>,
//                 <NRF_PSEL(QSPI_IO0, 0, 23)>,
//                 <NRF_PSEL(QSPI_IO1, 0, 21)>,
//                 <NRF_PSEL(QSPI_CSN, 0, 3)>,
//                 <NRF_PSEL(QSPI_SCK, 0, 19)>;
//     };
// };

&qspi_sleep {
    group1 {
        psels = <NRF_PSEL(QSPI_IO2, 0, 22)>;
    };
};
/delete-node/ &{/pin-controller/spi2_sleep/group1/};

&spi1_sleep {
    group1 {
        psels = <NRF_PSEL(SPIM_MISO, 1, 8)>;
    };
};
/delete-node/ &{/pin-controller/pwm0_default/group1/};
/delete-node/ &{/pin-controller/pwm0_sleep/group1/};

// &led0 {
//     /delete-property/ gpios;
// };
// /delete-node/ &{/pin-controller/qspi_sleep/group2/};

// &led3 {
//     /delete-property/ gpios;
// };
&qspi_default {
    group1 {
        psels = <NRF_PSEL(QSPI_IO2, 0, 22)>,
                <NRF_PSEL(QSPI_IO1, 0, 21)>,
                <NRF_PSEL(QSPI_IO3, 1, 0)>,
                <NRF_PSEL(QSPI_SCK, 0, 19)>,
                <NRF_PSEL(QSPI_IO0, 0, 23)>,
                <NRF_PSEL(QSPI_CSN, 0, 3)>;
    };
};
&qspi {
	pinctrl-0 = <&qspi_default>;
	mx25r64: mx25r6435f@0 {
		compatible = "nordic,qspi-nor";
		reg = <0>;
		//changes for GD25Q32E
		//quad-enable-requirements = "S2B1v1";
		writeoc = "pp4o";
		readoc = "read4io";
		sck-frequency = <24000000>; //Note: Can't achieve 32MHz.
		jedec-id = [c8 40 16];
		size = <33554432>;
	};
};

SDK - nrf connect sdk 2.4.0

Please let me know if any more details required

Sarvesh · Answer

Hi , Thanks for help but I have resolved the issue , I just have to disable the 
 
 CONFIG_ASSERT =n 
 in the prj.conf file of project 
 
 We can close this now