I like to use DMA dased data transfer from the both SPI bus, is it possible, please help

------------------------------------



(You need to be a member of msp430 -- send a blank email to msp430-subscribe@yahoogroups.com )

That is a good question actually.
I recall when the DMA was introduced on F169, the first peripheral I
looked for was SPI... it wasn't supported with DMA , duh.

I believe it would be supported now on (selected?) '430s.
Check in the DMA docs for your part which DMA sources/targets are
available.

If you get stuck and no one helps, I'll have a look but you need to tell
which part you'd like to use.

On Fri, 2009-08-14 at 22:20 +0000, Jules Karim wrote:
> I like to use DMA dased data transfer from the both SPI bus, is it possible, please help
>
> ------------------------------------



(You need to be a member of msp430 -- send a blank email to msp430-subscribe@yahoogroups.com )

Dear MSP430 groups,
Firstly,thanks for u sent the newest information everyday.
But now, i want not to receive the mails.
Do u can not sent the mails to me?
Thanks,
yours'
Jerry
________________________________
From: Microbit_Ubuntu
To: m...@yahoogroups.com
Sent: Saturday, August 15, 2009 8:32:47 AM
Subject: Re: [msp430] MSP 430 DMA based SPI

That is a good question actually.
I recall when the DMA was introduced on F169, the first peripheral I
looked for was SPI... it wasn't supported with DMA , duh.

I believe it would be supported now on (selected?) '430s.
Check in the DMA docs for your part which DMA sources/targets are
available.

If you get stuck and no one helps, I'll have a look but you need to tell
which part you'd like to use.

On Fri, 2009-08-14 at 22:20 +0000, Jules Karim wrote:
> I like to use DMA dased data transfer from the both SPI bus, is it possible, please help
>
> ------------ --------- --------- ------

______________________________
Stellaris® MCU Family: New Parts, New Package, New Price.


(You need to be a member of msp430 -- send a blank email to msp430-subscribe@yahoogroups.com )

On Sat, 15 Aug 2009 00:40:31 -0700 (PDT), you wrote:

>Dear MSP430 groups,
> Firstly,thanks for u sent the newest information everyday.
> But now, i want not to receive the mails.
> Do u can not sent the mails to me?
>Thanks,
> yours'
>Jerry

Dear Jerry Yu:

You control your own Yahoo choices. You have the power to turn off
the emails, just like anyone else does. And you are the one who is
supposed to change that or else unsubscribe through your own normal
access methods with Yahoo. Somehow, you were at one point familiar
enough to subscribe, so use similar means to unsubscribe or change
your settings.

Why do you think others should be asked to do this for you?

Jon
------------------------------------

______________________________
Stellaris® MCU Family: New Parts, New Package, New Price.


(You need to be a member of msp430 -- send a blank email to msp430-subscribe@yahoogroups.com )

Hey Jon/all,

On Sat, 2009-08-15 at 12:47 -0700, Jon Kirwan wrote:
> On Sat, 15 Aug 2009 00:40:31 -0700 (PDT), you wrote:
>
> >Dear MSP430 groups,
> > Firstly,thanks for u sent the newest information everyday.
> > But now, i want not to receive the mails.
> > Do u can not sent the mails to me?
> >Thanks,
> > yours'
> >Jerry
>
> Dear Jerry Yu:
>
> You control your own Yahoo choices. You have the power to turn off
> the emails, just like anyone else does. And you are the one who is
> supposed to change that or else unsubscribe through your own normal
> access methods with Yahoo. Somehow, you were at one point familiar
> enough to subscribe, so use similar means to unsubscribe or change
> your settings.
>
> Why do you think others should be asked to do this for you?
>
> Jon
... Not to mention, the futility of it - or should I type 'security
risk' ? -- Others being able to willy nilly unsubcribe members here !!

Can you imagine that ?
Anytime there's a flame war, members just unsubscribe others that are
irritating them...

...That would be a sandpit fest actually on one hand :-)... heh.
--
Best regards,
Kris
------------------------------------

______________________________
Stellaris® MCU Family: New Parts, New Package, New Price.


(You need to be a member of msp430 -- send a blank email to msp430-subscribe@yahoogroups.com )

I think you need two DMA channels to handle one SPI transfer. One DMA channel for SIMO, the other channel for SOMI.

If you have two separate SPI active at the same time, then you need four DMA channels at the same time.

--- In m...@yahoogroups.com, "Jules Karim" wrote:
>
> I like to use DMA dased data transfer from the both SPI bus, is it possible, please help
>
------------------------------------



(You need to be a member of msp430 -- send a blank email to msp430-subscribe@yahoogroups.com )