Handling multiple slaves on single spi master channel

[Ubaid_M]

Hi, 

The spi_config structure zephyr provides is as below:

	struct spi_config
	{
		uint32_t frequency;
		uint16_t operation;
		uint16_t slave;

		const struct spi_cs_control *cs;
	};

Wherein cs is initialized to the chip select pin.

In my project I have a requirement to handle 2 slaves which are exactly the same.

Herein, how can I manage 2 instances of, same slaves

And do I need to get multiple device bindings for the same spi channel..?

Thanks,

Ubaid

[sipan112]

The standard, most common, and obvious way to handle multiple SPI slaves is for each to have its own slave select line. That's precisely what they are for. You wire the MOSI, SCK, and MISO lines altogether, then each slave gets its own slave select line.