>>As for "wide of center", this isn't the first post to come via that
>>route that seemed a bit odd to me. Maybe it's just me.
>
>
> I have to agree with you that so far, contributions from visitors on the
> site have not been of the highest quality. The reasons for this are not
> completely clear to me yet. I must say that the interface is still only a
> few weeks old and I am improving it on a weekly basis. I am of course
> opened to suggestions.
>
> Stephane Boucher
>
>
> This message was sent using the Comp.DSP web interface on DSPRelated.com
Mind you, Stephanie, I'm not complaining. I find it interesting. I think
the link is a good thing.
Jerry
--
Engineering is the art of making what you want from things you can get.
�����������������������������������������������������������������������
Reply by stephaneb●February 8, 20052005-02-08
>As for "wide of center", this isn't the first post to come via that
>route that seemed a bit odd to me. Maybe it's just me.
I have to agree with you that so far, contributions from visitors on the
site have not been of the highest quality. The reasons for this are not
completely clear to me yet. I must say that the interface is still only a
few weeks old and I am improving it on a weekly basis. I am of course
opened to suggestions.
Stephane Boucher
This message was sent using the Comp.DSP web interface on DSPRelated.com
Reply by Jerry Avins●February 8, 20052005-02-08
Jon Harris wrote:
> Doesn't seem too off-the-wall to me--in a thread discussing a particular SDRAM,
> someone asks what the price of that SDRAM is. Though it seems to me it would
> have possibly been better directed as a personal e-mail to the OP if possible.
> And I certainly wouldn't make the jump that everyone on DSPRelated.com is "wide
> of center" based on this post!
I didn't understand that it was the same SDRAM, just SDRAM in general.
As for "wide of center", this isn't the first post to come via that
route that seemed a bit odd to me. Maybe it's just me.
Jerry
--
Engineering is the art of making what you want from things you can get.
�����������������������������������������������������������������������
Reply by Jerry Avins●February 8, 20052005-02-08
Tim Wescott wrote:
...
> Jerry! That's it! I can never describe myself as Left or Right because
> my political views are scattered all over the map, yet few of them are
> actually _in_ the center. I'm not Left or Right -- I'm just wide of
> center!
Welcome to the club! One question to ponder, though: what's the
difference between an eccentric and a crank?
Jerry
--
Engineering is the art of making what you want from things you can get.
�����������������������������������������������������������������������
Reply by Jon Harris●February 8, 20052005-02-08
Doesn't seem too off-the-wall to me--in a thread discussing a particular SDRAM,
someone asks what the price of that SDRAM is. Though it seems to me it would
have possibly been better directed as a personal e-mail to the OP if possible.
And I certainly wouldn't make the jump that everyone on DSPRelated.com is "wide
of center" based on this post!
"Jerry Avins" <jya@ieee.org> wrote in message
news:36sa11F53oqodU1@individual.net...
> msg99007 wrote:
>
> > Hi, I am thinking of using the SDRAM in a project but cant find the price
> > anywhere, do you remember what you paid for yours?
> >
> > Regards Martin
> > Hi,
>
> What has this to do with ADSP-21065L to Micron's MT48LC2M32B2? There
> must be a way to start a new thread in the software you use.
>
> This message was sent using the Comp.DSP web interface on DSPRelated.com
>
> Is everybody there a little wide of center?
>
> Jerry
> --
> Engineering is the art of making what you want from things you can get.
> �����������������������������������������������������������������������
Reply by Tim Wescott●February 8, 20052005-02-08
Jerry Avins wrote:
> msg99007 wrote:
>
>
>>Hi, I am thinking of using the SDRAM in a project but cant find the price
>>anywhere, do you remember what you paid for yours?
>>
>>Regards Martin
>>Hi,
>
>
> What has this to do with ADSP-21065L to Micron's MT48LC2M32B2? There
> must be a way to start a new thread in the software you use.
For that matter you could ask on sci.electronics.components and get good
advise.
>
> This message was sent using the Comp.DSP web interface on DSPRelated.com
>
> Is everybody there a little wide of center?
Jerry! That's it! I can never describe myself as Left or Right because
my political views are scattered all over the map, yet few of them are
actually _in_ the center. I'm not Left or Right -- I'm just wide of center!
Thanks!
--
Tim Wescott
Wescott Design Services
http://www.wescottdesign.com
Reply by Jerry Avins●February 8, 20052005-02-08
msg99007 wrote:
> Hi, I am thinking of using the SDRAM in a project but cant find the price
> anywhere, do you remember what you paid for yours?
>
> Regards Martin
> Hi,
What has this to do with ADSP-21065L to Micron's MT48LC2M32B2? There
must be a way to start a new thread in the software you use.
This message was sent using the Comp.DSP web interface on DSPRelated.com
Is everybody there a little wide of center?
Jerry
--
Engineering is the art of making what you want from things you can get.
�����������������������������������������������������������������������
Reply by msg99007●February 8, 20052005-02-08
Hi, I am thinking of using the SDRAM in a project but cant find the price
anywhere, do you remember what you paid for yours?
Regards Martin
Hi,
>
>For a project I'm working on, I need SDRAM interfacing to the
>ADSP-21065L (my very first project involving design with SDRAM parts).
>One suitable part is the MT48LC2M32B2 from Micron. Has anyone already
>used this part or any other very similar for interfacing to the 065L?
>Any special requeriments or considerations to take caro of? The nicest
>things about this part are its direct 32 bit data support, and low
>price.
>
>I have one doubt: this part is 4-banked (BA1, BA0). AD13 and AD12
>should be used as the bank select signals, but I don't know how
>exactly is the connection, either AD13-BA1 and AD12-BA0, or otherwise.
>Please clarify this to me.
>
>Something else: there is only one DQM signal on the DSP, and four DQMs
>on the SDRAM, for each byte of data. Can the DQM signal be directly
>connected to all of the DQM0-3 on the SDRAM directly? I suspect the
>answer is "yes", since it's output of the DSP and input to the SDRAM
>when writting, and tristated in both parts when reading; I just want
>you guys to confirm this, since I don't want to do hardware redesigns,
>which is rather expensive.
>
>Regards,
>
>JaaC
>
This message was sent using the Comp.DSP web interface on DSPRelated.com
Reply by ●December 14, 20042004-12-14
> I don't remember anything particularly tricky--just wired it up per the
SHARC
> documentation. Getting all the bits of the SDRAM controller register
set-up
> takes a bit of care, but as long as you have both the SDRAM and SHARC
> documentation in front of you, it is straightforward.
>
>
> You got it right: AD13->BA1, AD12->BA0
>
>
> "yes"! Wire them all together. Since the SHARC operates on 32 bits at a
time,
> it doesn't really support the byte-wide masking stuff that you get with
multiple
> DQM inputs.
Thanks a lot, Jon.
--
Jaime Andr�s Aranguren Cardona
jaac@nospam.sanjaac.com
SanJaaC Electronics
Soluciones en DSP
www.sanjaac.com
(Remove "nospam" from e-mail address)
Reply by Jon Harris●December 13, 20042004-12-13
Good new for you: I have used those exact 2 parts in a design and it works just
fine! More comments interspersed.
"Jaime Andres Aranguren Cardona" <jaime.aranguren@ieee.org> wrote in message
news:14a86f87.0412111844.2776250a@posting.google.com...
> Hi,
>
> For a project I'm working on, I need SDRAM interfacing to the
> ADSP-21065L (my very first project involving design with SDRAM parts).
> One suitable part is the MT48LC2M32B2 from Micron. Has anyone already
> used this part or any other very similar for interfacing to the 065L?
> Any special requeriments or considerations to take caro of? The nicest
> things about this part are its direct 32 bit data support, and low
> price.
I don't remember anything particularly tricky--just wired it up per the SHARC
documentation. Getting all the bits of the SDRAM controller register set-up
takes a bit of care, but as long as you have both the SDRAM and SHARC
documentation in front of you, it is straightforward.
> I have one doubt: this part is 4-banked (BA1, BA0). AD13 and AD12
> should be used as the bank select signals, but I don't know how
> exactly is the connection, either AD13-BA1 and AD12-BA0, or otherwise.
> Please clarify this to me.
You got it right: AD13->BA1, AD12->BA0
> Something else: there is only one DQM signal on the DSP, and four DQMs
> on the SDRAM, for each byte of data. Can the DQM signal be directly
> connected to all of the DQM0-3 on the SDRAM directly? I suspect the
> answer is "yes", since it's output of the DSP and input to the SDRAM
> when writting, and tristated in both parts when reading; I just want
> you guys to confirm this, since I don't want to do hardware redesigns,
> which is rather expensive.
"yes"! Wire them all together. Since the SHARC operates on 32 bits at a time,
it doesn't really support the byte-wide masking stuff that you get with multiple
DQM inputs.