I am using the MSP430F427 and what I want to do is to use both the
UART serial port and the SPI port at the same time. Because they are
on different pins, I am assuming that this is possible and that I can
transmit and receive on both at the same time as with other TI devices.

Is this possible and how do I do it?

Ken

>From: kenneth_kearney <kenneth_kearney@kenn...>
>Subject: [msp430] MSP430F427 SPI and UART

>I am using the MSP430F427 and what I want to do is
to use both the
>UART serial port and the SPI port at the same time. Because they are
>on different pins, I am assuming that this is possible and that I can
>transmit and receive on both at the same time as with other TI devices.
>
>Is this possible and how do I do it?

Ken,

While the external pins are separate, the internal hardware is shared. From the
slau056e.pdf (MSP430x4xx User's Guide):

>"The universal synchronous/asynchronous 
>receive/transmit (USART) peripheral interface 
>supports two serial modes with one hardware module."

The clue is the "one hardware module". A module can only do one thing
at a time. 

You could choose to do both if would give up the "at the same time"
condition. If you do need them both at the same time, look into a different
part:

>"In addition to USART0, the MSP430x44x devices

>implement a second identical USART module, USART1."

so a 430F44x part should be able to do what you want.

Hope that helps,

Rachel Adamec
Norristown, PA, USA