3 devices on SPI bus

[ezanen9]

Posted on January 12, 2006 at 12:27

3 devices on SPI bus

[ezanen9]

Posted on January 12, 2006 at 04:47

Hi all,

Does someone know if it is possible to connect 3 SPI devices on one SPI bus?

I have 2 touchscreen controller/driver IC's both with a SPI bus output and I want to connect them to the same SPI bus on my STR710 microcontroller.(I can not use the second SPI of the STR710) Is this possible?

Thanks,

Jimmey

[rsherry]

Posted on January 12, 2006 at 12:27

Yes you can.

You just need to make sure you only select one device at a time (i.e. control the chip select inputs on the slave devices...in your case it will be your touch screen controllers).

Best regards,

Ryan.