TMS320F28027: Communicating using two separate UART modules

Hello,

Can you please upload the the image/reference below the text "two pairs of pins"? It is not visible?

Hello ,

I will try to re-attach.

Best regards ,

Arik.P.

Arik,

First, I hope that you realize that this device only has one SCI. Each GPIO pin can have up to four options - I/O and up to three possible peripheral functions. The figure that you attached shows the one SCI TX and RX is multiplexed (pinned out) to two different GPIO locations.

I hope this helps. If this answers your question, please click the green "Verified Answer" button. Thanks.

- Ken

Hi ,

So with single SCI this processor can’t handle two i stances of UART.

Please confirm.

BR ,

Arik.P

Arik,

It's a single physical SCI which has two PIE interrupt vectors - one for RX and one for TX. The key words here are "single physical" and not a software "instance". Time-sharing is not very practical, if even possible. This would involve managing a lot of software overhead and code, making it extremely slow.

I hope this answers your question and if so, please click the green "Verified Answer" button. Thank you.

- Ken

Hi Ken ,
Thank you.

Can you please recommend an alternate Picollo member device that supports dual UART natively ?

Best regards ,

Arik.P