Which MSP430 chip gives me 2 uarts AND an i2c

View: New views
5 Messages — Rating Filter:   Alert me  

Which MSP430 chip gives me 2 uarts AND an i2c

by owaiscareer :: Rate this Message:

Reply to Author | View Threaded | Show Only this Message

Hey guys,
I have an application that needs 2 UARTS while at the same time an
I2C. Is there an MSP430 chip that has this feature or is s soft
uart/i2c the only option?
Thanks



Re: Which MSP430 chip gives me 2 uarts AND an i2c

by old_cow_yellow :: Rate this Message:

Reply to Author | View Threaded | Show Only this Message

TI web-site currently lists 25 MSP430 chips with 2 UART & 2 I2c.
The cheapest one is MSPF2471.

--- In msp430@..., "owaiscareer" <owaiscareer@...> wrote:
>
> Hey guys,
> I have an application that needs 2 UARTS while at the same time an
> I2C. Is there an MSP430 chip that has this feature or is s soft
> uart/i2c the only option?
> Thanks
>



Re: Which MSP430 chip gives me 2 uarts AND an i2c

by Ian Okey :: Rate this Message:

Reply to Author | View Threaded | Show Only this Message

The new MSP430F5438 has 4 USCI blocks.  This will meet your requirements.
TI say that the device will be released in August.

Ian

2008/7/10 owaiscareer <owaiscareer@...>:

> Hey guys,
> I have an application that needs 2 UARTS while at the same time an
> I2C. Is there an MSP430 chip that has this feature or is s soft
> uart/i2c the only option?
> Thanks
>
>
>
> ------------------------------------
>
> To unsubscribe from the msp430 group, send an email to:
> msp430-unsubscribe@...
>
> Yahoo! Groups Links
>
>
>
>


[Non-text portions of this message have been removed]


Re: Which MSP430 chip gives me 2 uarts AND an i2c

by Marjon Zubiri :: Rate this Message:

Reply to Author | View Threaded | Show Only this Message

MSP430F2481 - You can use the two USCI module in UART mode,
and if you are the I2C master, might be able to share the interrupt
vector for one as an I2C interrupt.

Currently I have this setup:
one USCI module used as UART receive interrupt enable,
this same module is used as an SPI (can also be an I2C mode,
I think) master.

the second module used as a UART receive interrupt enable,
this same module is used as an SPI slave. So I have them mapped
to the same receive interrupt vector, but inside it, I have to check
the IFG flag to find out which one caused the interrupt. You might
have some timing issues here depending on the speed you need
your interrupts serviced.

The above setup works, as the pin outs for the UART pins are
different from the SPI pins.

This is still in development and not fully tested, but so far it works.
I am still yet to confirm 100% reliability.

On Fri, Jul 11, 2008 at 2:05 AM, Ian Okey <ian.okey@...> wrote:

>   The new MSP430F5438 has 4 USCI blocks. This will meet your requirements.
> TI say that the device will be released in August.
>
> Ian
>
> 2008/7/10 owaiscareer <owaiscareer@... <owaiscareer%40yahoo.com>>:
>
>
> > Hey guys,
> > I have an application that needs 2 UARTS while at the same time an
> > I2C. Is there an MSP430 chip that has this feature or is s soft
> > uart/i2c the only option?
> > Thanks
> >
> >
> >
> > ------------------------------------
> >
> > To unsubscribe from the msp430 group, send an email to:
> > msp430-unsubscribe@... <msp430-unsubscribe%40egroups.com>
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
>
> [Non-text portions of this message have been removed]
>
>  
>


[Non-text portions of this message have been removed]


Re: Which MSP430 chip gives me 2 uarts AND an i2c

by owaiscareer :: Rate this Message:

Reply to Author | View Threaded | Show Only this Message

--- In msp430@..., "owaiscareer" <owaiscareer@...> wrote:
>
> Hey guys,
> I have an application that needs 2 UARTS while at the same time an
> I2C. Is there an MSP430 chip that has this feature or is s soft
> uart/i2c the only option?
> Thanks
>

Thanks to all that replied.  I think that for my application, the
suggested part MSP430F2473 will suffice.

Love this forum!