WEBENCH® Tools/CC2538: I2C slave devices supported by cc2538

Dhanraj

Guru 14820 points

Part Number: CC2538

Tool/software: WEBENCH® Design Tools

Hello,

How many I2C slave devices can be supported by cc2538 ?

over 8 years ago

0 YiKai Chen over 8 years ago

Guru 735695 points

I2C interface can be shared by different sensors so you can connect several sensors to the same I2C SCL/SDA pins. However, we usually won't connect more than 4 different I2C sensors to the same bus.

0 Dhanraj over 8 years ago in reply to YiKai Chen

Guru 14820 points

I need to connect more then 4 i2c sensors then , what should i do?

0 YiKai Chen over 8 years ago in reply to Dhanraj

Guru 735695 points

I suppose you can use two or three sets of I2C pins and connect your sensors to those different sets of I2C pins. You have to switch I2C peripheral to different I2C pins to read different sensors.

0 Dhanraj over 8 years ago in reply to YiKai Chen

Guru 14820 points

Any digital pin can be used as I2C pins ?

0 YiKai Chen over 8 years ago in reply to Dhanraj

Guru 735695 points

If I remember correctly, yes.

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WEBENCH® Tools/CC2538: I2C slave devices supported by cc2538