nRF52810-CAAA SPI setting And current consumption.

[ParanBada]

I am developing the product using nRF52810-CAAA.
I have initialized it for SPI use as follows.

extern void mbprv151_spi_init(void)
{
	ret_code_t err_code;

	nrf_drv_spi_config_t spi_config = NRF_DRV_SPI_DEFAULT_CONFIG;

	spi_config.sck_pin		= MBPRV151_SCK_PIN;
	spi_config.miso_pin 	= MBPRV151_MISO_PIN;
	spi_config.mosi_pin 	= MBPRV151_MOSI_PIN;
	spi_config.ss_pin		= NRF_DRV_SPI_PIN_NOT_USED;
	spi_config.frequency 	= NRF_DRV_SPI_FREQ_500K;

	err_code = nrf_drv_spi_init(&m_spi_master, &spi_config, NULL, NULL);
	APP_ERROR_CHECK(err_code);
}

This will increase the current consumption by 3mA.
Why?
Is this normal?

Thanks,

I can not find a way to solve it.
I would appreciate your urgent reply.

[Sean]

Are you using the development kit or your own hardware? What peripherals are on the SPI bus?