zephyr spi-nor device id does not match

[yogeshiggalore]

Hi all,

I am trying to interface IS25LQ040B serial flash(512KB) IC with nrf52833 (bl653_dvk). 

programmed sample code from "zephyr\samples\drivers\spi_flash"

I am getting jedec device id error 

overlay file for reference

prj file for reference

thanks,

[Simonr]

Hi

The error you see is coming from the spi_nor.c driver, where the device ID (jedec_id and cfg->jedec_id) are compared, and it seems these do not match. My guess would be that the SPI device is not connected correctly to your nRF52833. I don't see that your chip select pin is configured for example.

Best regards,

Simon

[yogeshiggalore]

hi simon,

You can see chip select in overlay file. 

the device is working as expected when I am reading jedec ID using SPI transceive API. 

void spi_jedec_id_test_send(void)
{
	int err;

	static uint8_t tx_buffer[5] = {
		0X9F,
		0x00,
		0x00,
		0x00,
		0x00

	};
	
	static uint8_t rx_buffer[5]= {0,0,0,0,0};

	const struct spi_buf tx_buf = {
		.buf = tx_buffer,
		.len = sizeof(tx_buffer)};
	const struct spi_buf_set tx = {
		.buffers = &tx_buf,
		.count = 1};

	struct spi_buf rx_buf = {
		.buf = rx_buffer,
		.len = sizeof(rx_buffer),
	};
	const struct spi_buf_set rx = {
		.buffers = &rx_buf,
		.count = 1};

	gpio_pin_set(dev_gpio0, spi1cspin, 1);
	err = spi_transceive(dev_spi1, &cfg_spi1, &tx, &rx);
	gpio_pin_set(dev_gpio0, spi1cspin, 0);

	if (err)
	{
		printk("SPI error: %d\n", err);
	}
	else
	{
		/* Connect MISO to MOSI for loopback */
		printk("SPI Tx bytes: ");
		for (int i = 0; i < sizeof(tx_buffer); i++)
		{
			printk("%x ", tx_buffer[i]);
		}
		printk(" SPI Rx bytes: ");
		for (int i = 0; i < sizeof(rx_buffer); i++)
		{
			printk("%x ", rx_buffer[i]);
		}
		printk("\n");
	}
}

here I am controlling the chip select pin manually.