Best way to connect multiple i2c devices with the same address?

[addast]

I need to somehow connect 10 i2c devices to nrf52, to do that I need 5 i2c peripherals, but nrf52 has only 2.

I see different options:

1) Use multiplexer. Probably a good option, but I don't want any additional components.

2) Use a different SCL and SCK for each sensor, and reconfigure the TWI module for every time you poll each sensor. But how fast can I do that, can I do it 300 times per sec? How bad is this option compared to dedicated multiplexer?

3) Use software i2c.

What is the best option? Thanks.

[awneil]

Do the devices not have configurable addresses?

addast said:

how fast can I do that

How fast do you need to do it? I2C is not generally a "fast" interface ...

addast said:

Use software SPI

You mean software I2C ?

[addast]

1) Yes, devices have configurable addresses, each device has 2 available address, that's why for 10 devices I only need 5 physical i2c bus.

2) I mean how fast can I switch pins for the same i2c bus. For example, on the first microsecond i2c bus was on pin 1 and 2, then I switch it to another pins, so on the second microsecond i2c bus will be on pin 3 and 4.

3) Yes

[Joakim Jakobsen]

Hi. 

Sorry that you didn˙t get any feedback on this.

Did you find the information you need, or do you still need assistance from a nordic engineer?

Br, 
Joakim