static assertion failed: "Only one of the following peripherals can be enabled: SPI2, SPIM2, SPIS2, TWI2, TWIM2, TWIS2, UARTE2. kernel build bug

RE: static assertion failed: "Only one of the following peripherals can be enabled: SPI2, SPIM2, SPIS2, TWI2, TWIM2, TWIS2, UARTE2. kernel build bug

Håkon Alseth — Tue, 06 Apr 2021 07:31:53 GMT

Hi,

Some peripherals have a shared ID, as explained here:

https://infocenter.nordicsemi.com/topic/ps_nrf9160/peripheral_interface.html?cp=2_0_0_2_2_1#concept_shared_id

https://infocenter.nordicsemi.com/topic/ps_nrf9160/memory.html?cp=2_0_0_3_1_1#topic

This means that bus devices that share base address, like SPI*0, TWI*0, and UARTE0 on the nRF9160; only one of these can be enabled at the same time.

You cannot have i2c2 and uart2 enabled simultaneously for the nRF9160 device. As you mention, try moving one of these, like using i2c3 instead.

In case you have SPI enabled:

Note that you should disable spi3, as this is default enabled for the nrf9160dk_nrf9160 board:

&spi3 {
	status = "disabled";
};

Kind regards,

Håkoin

RE: static assertion failed: "Only one of the following peripherals can be enabled: SPI2, SPIM2, SPIS2, TWI2, TWIM2, TWIS2, UARTE2. kernel build bug

fatalfeel — Mon, 05 Apr 2021 06:07:19 GMT

it check by ~/ncs/zephyr/soc/arm/nordic_nrf/validate_enabled_instances.c

#define CHECK(idx) \
   !(I2C_ENABLED(idx) && SPI_ENABLED(idx)) && \
   !(I2C_ENABLED(idx) && UART_ENABLED(idx)) && \
   !(SPI_ENABLED(idx) && UART_ENABLED(idx))

#define MSG(idx) \
   "Only one of the following peripherals can be enabled: " \
   "SPI"#idx", SPIM"#idx", SPIS"#idx", TWI"#idx", TWIM"#idx", TWIS"#idx \
   IF_ENABLED(CONFIG_SOC_SERIES_NRF53X, (", UARTE"#idx)) \
   IF_ENABLED(CONFIG_SOC_SERIES_NRF91X, (", UARTE"#idx)) \
   ". Check nodes with status \"okay\" in zephyr.dts."

#if !IS_ENABLED(CONFIG_SOC_NRF52810)
BUILD_ASSERT(CHECK(0), MSG(0));
#endif
BUILD_ASSERT(CHECK(1), MSG(1));
BUILD_ASSERT(CHECK(2), MSG(2));
BUILD_ASSERT(CHECK(3), MSG(3));

so maybe i2c_2 need move to i2c_3