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Discussion Groups | MSP430 | Which MSP430 chip gives me 2 uarts AND an i2c
The purpose of this group is to foster exchange of information on the Texas Instruments MSP430 family of microcontrollers and related tools. Everyone welcome, all levels of familiarity/expertise.
Which MSP430 chip gives me 2 uarts AND an i2c - owaiscareer - Jul 10 19:06:19 2008
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
------------------------------------
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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
------------------------------------
(You need to be a member of msp430 -- send a blank email to msp430-subscribe@yahoogroups.com )
Re: Which MSP430 chip gives me 2 uarts AND an i2c - old_cow_yellow - Jul 11 1:14:16 2008
TI web-site currently lists 25 MSP430 chips with 2 UART & 2 I2c.
The cheapest one is MSPF2471.
--- In m...@yahoogroups.com, "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
>
------------------------------------
(You need to be a member of msp430 -- send a blank email to msp430-subscribe@yahoogroups.com )
The cheapest one is MSPF2471.
--- In m...@yahoogroups.com, "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
>
------------------------------------
(You need to be a member of msp430 -- send a blank email to msp430-subscribe@yahoogroups.com )
Re: Which MSP430 chip gives me 2 uarts AND an i2c - Ian Okey - Jul 11 3:09:27 2008
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:
> 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
>
> ------------------------------------
(You need to be a member of msp430 -- send a blank email to msp430-subscribe@yahoogroups.com )
TI say that the device will be released in August.
Ian
2008/7/10 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
>
> ------------------------------------
(You need to be a member of msp430 -- send a blank email to msp430-subscribe@yahoogroups.com )
Re: Which MSP430 chip gives me 2 uarts AND an i2c - Marjon Zubiri - Jul 11 4:45:36 2008
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 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>:
> > 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
> >
> >
> >
> > ------------------------------------
> >
> >
> >
> >
(You need to be a member of msp430 -- send a blank email to msp430-subscribe@yahoogroups.com )
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
> 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
> > 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
> >
> >
> >
> > ------------------------------------
> >
> >
> >
> >
(You need to be a member of msp430 -- send a blank email to msp430-subscribe@yahoogroups.com )
Re: Which MSP430 chip gives me 2 uarts AND an i2c - owaiscareer - Jul 15 11:30:49 2008
--- In m...@yahoogroups.com, "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!
------------------------------------
(You need to be a member of msp430 -- send a blank email to msp430-subscribe@yahoogroups.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
>
Thanks to all that replied. I think that for my application, the
suggested part MSP430F2473 will suffice.
Love this forum!
------------------------------------
(You need to be a member of msp430 -- send a blank email to msp430-subscribe@yahoogroups.com )