|
I have been told that TI used to offer a PCB module that included nothing but a DSP and a connector to the device pins. This would be used as a kind of daughtercard to a custom built PCB, so individual users could include the DSP in a custom hardware platform without having to have this piece included in the manufacture process. This offers obvious advantages to some users who do not have the capability of placing BGA devices within their manufacturing line. Does anyone know if this product/service still exists? I would be particularly interested in using such a PCB with a DM642 processor attached. Many thanks for any info, StephenO. PS. I have also asked TI direct, but am still awaiting their response. |
Bareboard DSP
Started by ●February 9, 2005
Reply by ●February 10, 20052005-02-10
|
Hello Stephen,
To the best of my knowledge, TI does not have anything like that.
Certain legacy TI DSPs used to require a special 'emulation chip'
for debug and this board could be plugged for debugging and then removed
for production.
There are some vendors out there with 'DSP only' boards, but they
do not bring out all of the pins. The DM642 has 548 pins [several are
power/ground] - if you put it on a card with low density connectors, you would
run into some signal quality problems. I would suggest that if your
vendor cannot build a 'BGA board', they probably cannot build a
quality DM642 board anyway.
just my opinion,
mikedunn
stepheno59 <s...@unn.ac.uk> wrote: I have been told that TI used to offer a PCB module that included |
Reply by ●February 10, 20052005-02-10
|
Thanks for the reply Mike, Can you please supply more details on the vendors with "DSP only" boards? Do you mean these boards are available commericially? I do not need acess to all 548 pins ( although I concede that this is not clear from my original post). It may be that I can manage with whatever pins _are_ brought out. Thanks again, Stephen. -----Original Message----- From: Mike Dunn [mailto:] Sent: 10 February 2005 03:44 To: stepheno59; Subject: Re: [c6x] Bareboard DSP Hello Stephen, To the best of my knowledge, TI does not have anything like that. Certain legacy TI DSPs used to require a special 'emulation chip' for debug and this board could be plugged for debugging and then removed for production. There are some vendors out there with 'DSP only' boards, but they do not bring out all of the pins. The DM642 has 548 pins [several are power/ground] - if you put it on a card with low density connectors, you would run into some signal quality problems. I would suggest that if your vendor cannot build a 'BGA board', they probably cannot build a quality DM642 board anyway. just my opinion, mikedunn stepheno59 <> wrote: I have been told that TI used to offer a PCB module that included nothing but a DSP and a connector to the device pins. This would be used as a kind of daughtercard to a custom built PCB, so individual users could include the DSP in a custom hardware platform without having to have this piece included in the manufacture process. This offers obvious advantages to some users who do not have the capability of placing BGA devices within their manufacturing line. Does anyone know if this product/service still exists? I would be particularly interested in using such a PCB with a DM642 processor attached. Many thanks for any info, StephenO. PS. I have also asked TI direct, but am still awaiting their response. -- This message has been scanned for viruses and dangerous content by the NorMAN <http://www.mailscanner.info/> MailScanner Service and is believed to be clean. The NorMAN MailScanner Service is operated by Information Systems and Services, University of Newcastle upon Tyne. ==== This e-mail is intended solely for the addressee. It may contain private and confidential information. If you are not the intended addressee, please take no action based on it nor show a copy to anyone. Please reply to this e-mail to highlight the error. You should also be aware that all electronic mail from, to, or within Northumbria University may be the subject of a request under the Freedom of Information Act 2000 and related legislation, and therefore may be required to be disclosed to third parties. This e-mail and attachments have been scanned for viruses prior to leaving Northumbria University. Northumbria University will not be liable for any losses as a result of any viruses being passed on. |
Reply by ●February 10, 20052005-02-10
|
Stephen- > Can you please supply more details on the vendors with "DSP only" boards? > Do you mean these boards are available commericially? > > I do not need acess to all 548 pins ( although I concede that this is not > clear from my original post). > It may be that I can manage with whatever pins _are_ brought out. What about something like a BGA socket or adapter PCB: http://www.arieselec.com/products/18082.pdf "A cost effective means of upgrading or testing [BGA package] without changing your PCB layout." But Mike's point is good. You still have power plane, clock, and many other sensitive signal issues to deal with. That points to a daughtercard solution; i.e. something that already is DM642-proven and works. But then you have to ask: if anyone makes a small DM642 module for sale, why would they just put the DM642 on it? They would add Flash, audio, digital video port, Ethernet, some type of standard connector interface, etc -- i.e. they would make a product. If a company only brought out serial and digital video lines, for example they made a "DSP based video compression module", then they'd be competing wit compression chips costing $100+ less. I agree that TI would be the logical option -- they would have the only commercially viable reason to build a small, cheap PCB with DM642, SDRAM, clock, and just enough bits and pieces to allow the DM642 to run. So if TI does not have it... -Jeff > -----Original Message----- > From: Mike Dunn [mailto:] > Sent: 10 February 2005 03:44 > To: stepheno59; > Subject: Re: [c6x] Bareboard DSP > > Hello Stephen, > > To the best of my knowledge, TI does not have anything like that. > > Certain legacy TI DSPs used to require a special 'emulation chip' for debug > and this board could be plugged for debugging and then removed for > production. > > There are some vendors out there with 'DSP only' boards, but they do not > bring out all of the pins. The DM642 has 548 pins [several are > power/ground] - if you put it on a card with low density connectors, you > would run into some signal quality problems. I would suggest that if your > vendor cannot build a 'BGA board', they probably cannot build a quality > DM642 board anyway. > > just my opinion, > mikedunn > > stepheno59 <> wrote: > > I have been told that TI used to offer a PCB module that included > nothing but a DSP and a connector to the device pins. > > This would be used as a kind of daughtercard to a custom built PCB, so > individual users could include the DSP in a custom hardware platform > without having to have this piece included in the manufacture process. > > This offers obvious advantages to some users who do not have the > capability of placing BGA devices within their manufacturing line. > > Does anyone know if this product/service still exists? I would be > particularly interested in using such a PCB with a DM642 processor > attached. > > Many thanks for any info, > > StephenO. > > PS. I have also asked TI direct, but am still awaiting their response. > > -- > This message has been scanned for viruses and dangerous > content by the NorMAN <http://www.mailscanner.info/> MailScanner Service > and is believed > to be clean. > > The NorMAN MailScanner Service is operated by Information > Systems and Services, University of Newcastle upon Tyne. > > ==== > This e-mail is intended solely for the addressee. It may contain private and > confidential information. If you are not the intended addressee, please take > no action based on it nor show a copy to anyone. Please reply to this e-mail > to highlight the error. You should also be aware that all electronic mail > from, to, or within Northumbria University may be the subject of a request > under the Freedom of Information Act 2000 and related legislation, and > therefore may be required to be disclosed to third parties. > This e-mail and attachments have been scanned for viruses prior to leaving > Northumbria University. Northumbria University will not be liable for any > losses as a result of any viruses being passed on. > |
Reply by ●February 10, 20052005-02-10
|
Stephen- > Can you please supply more details on the vendors with "DSP only" boards? > Do you mean these boards are available commericially? > > I do not need acess to all 548 pins ( although I concede that this is not > clear from my original post). > It may be that I can manage with whatever pins _are_ brought out. What about something like a BGA socket or adapter PCB: http://www.arieselec.com/products/18082.pdf SMO>> Yeah, I had thought about using a BGA socket , and whilst it should be OK for prototyping, I'm not convinced it is the way to go for volume manufacture. I don't have an existing PCB design so the bridge PCB would not offer any advantage. (If my interpretation of it's use is correct.) But Mike's point is good. You still have power plane, clock, and many other sensitive signal issues to deal with. That points to a daughtercard solution; i.e. something that already is DM642-proven and works. But then you have to ask: if anyone makes a small DM642 module for sale, why would they just put the DM642 on it? They would add Flash, audio, digital video port, Ethernet, some type of standard connector interface, etc -- i.e. they would make a product. SMO>> I am aware of a number of pre-built DM642 modules for sale, but the price makes them restrictive when developing a commercial product (or at least for the budget I am trying to meet anyway). If a company only brought out serial and digital video lines, for example they made a "DSP based video compression module", then they'd be competing wit compression chips costing $100+ less. SMO>> True, but I want to run my own image-processing algorithms on the DM642 that are not compression based. I agree that TI would be the logical option -- they would have the only commercially viable reason to build a small, cheap PCB with DM642, SDRAM, clock, and just enough bits and pieces to allow the DM642 to run. So if TI does not have it... SMO>> EPIC tell me they are not aware of such a solution. Thanks for your input. Stephen. ==== This e-mail is intended solely for the addressee. It may contain private and confidential information. If you are not the intended addressee, please take no action based on it nor show a copy to anyone. Please reply to this e-mail to highlight the error. You should also be aware that all electronic mail from, to, or within Northumbria University may be the subject of a request under the Freedom of Information Act 2000 and related legislation, and therefore may be required to be disclosed to third parties. This e-mail and attachments have been scanned for viruses prior to leaving Northumbria University. Northumbria University will not be liable for any losses as a result of any viruses being passed on. |
Reply by ●February 10, 20052005-02-10
|
Jeff Brower wrote: > > Stephen- > > > Can you please supply more details on the vendors with "DSP only" boards? > > Do you mean these boards are available commericially? > > > > I do not need acess to all 548 pins ( although I concede that this is not > > clear from my original post). > > It may be that I can manage with whatever pins _are_ brought out. > > What about something like a BGA socket or adapter PCB: > > http://www.arieselec.com/products/18082.pdf > > "A cost effective means of upgrading or testing [BGA package] without changing your > PCB layout." > > But Mike's point is good. You still have power plane, clock, and many other > sensitive signal issues to deal with. That points to a daughtercard solution; i.e. > something that already is DM642-proven and works. But then you have to ask: if > anyone makes a small DM642 module for sale, why would they just put the DM642 on it? > They would add Flash, audio, digital video port, Ethernet, some type of standard > connector interface, etc -- i.e. they would make a product. > > If a company only brought out serial and digital video lines, for example they made a > "DSP based video compression module", then they'd be competing wit compression chips > costing $100+ less. > > I agree that TI would be the logical option -- they would have the only commercially > viable reason to build a small, cheap PCB with DM642, SDRAM, clock, and just enough > bits and pieces to allow the DM642 to run. So if TI does not have it... > > -Jeff > I am speaking outside my area of expertise, but would the DM642 EVM, work at all for what it is you intend to do ? Regards JS |
Reply by ●February 10, 20052005-02-10
|
I am speaking outside my area of expertise, but would the DM642 EVM, work at all for what it is you intend to do ? Regards JS Hi JS, Yes - I am using the EVMDM642 now, but I am coming to the end of my prototype stage and trying to find a low cost solution to produce larger numbers of my product. ==== This e-mail is intended solely for the addressee. It may contain private and confidential information. If you are not the intended addressee, please take no action based on it nor show a copy to anyone. Please reply to this e-mail to highlight the error. You should also be aware that all electronic mail from, to, or within Northumbria University may be the subject of a request under the Freedom of Information Act 2000 and related legislation, and therefore may be required to be disclosed to third parties. This e-mail and attachments have been scanned for viruses prior to leaving Northumbria University. Northumbria University will not be liable for any losses as a result of any viruses being passed on. |
Reply by ●February 10, 20052005-02-10
|
see below...
Stephen Ormston <s...@unn.ac.uk> wrote:
I am not sure that you can save any 'real money' that way. the modules that I have seen for the 6414,6415,6416 cost $1,200. http://www.flexds.com/modules/c6000.htm Unless you are just totally set on a particular board house [or 'ordered' to use a particular one], It would be best to find one with at least late 20th century capability. I don't know anything about spectrum digital's business model, but they might be willing to build the whole thing for you... mikedunn==== |
Reply by ●February 11, 20052005-02-11
|
> see below... Stephen Ormston <> wrote: > > I am speaking outside my area of expertise, but would the DM642 EVM, work at all for what it is you intend to do ? Regards JS Hi JS, Yes - I am using the EVMDM642 now, but I am coming to the end of my prototype stage and trying to find a low cost solution to produce larger numbers of my product. > I am not sure that you can save any 'real money' that way. the modules that I have seen for the 6414,6415,6416 cost $1,200. > http://www.flexds.com/modules/c6000.htm > Unless you are just totally set on a particular board house [or 'ordered' to use a particular one], It would be best to find one with at least late 20th century capability. > I don't know anything about spectrum digital's business model, but they might be willing to build the whole thing for you... > mikedunn SMO>> I think maybe I was not clear about what I am trying to achieve. I have developed my prototype based on the EVMDM642 (from TI/Spectrum Digital). I am now looking for ways to produce my own custom hardware platform (albeit based on the EVMDM642). Because the DM642 is a BGA and not easily placed, I am looking for a way to: A) Create small numbers of my custom hardware platform. The majority of my components can be hand-soldered, but placing the BGA without an automated facility cannot be done. I see two ways to overcome this: i) Use a BGA socket or similar to place the BGA part. ii) Split my custom hardware into two parts. Use a bought in board for the DSP, SDRAM and FLASH (if I can find such a board) Build my own board for the application specific stuff which can connect to the bought-in board. B) Create a means to repeat the above in larger volumes with a minimum of redesign. Thanks for all of the thoughts and ideas so far, and thanks in advance for any more. Stephen. |
Reply by ●February 20, 20052005-02-20
|
The information I am writing in this e-mail is not intended as an endorsement of any of these vendors. Rather, it is an attempt to enable active development with DM642 and see how I/we can help. The following choices are not listed in any specific order. Hope this information helps. a. The specific board is a 2 DM642 board but Mango can probably scale it if needed to single DSP. Here is a link: http://www.mangodsp.com/raven-x.asp b. Digilab, italy FYI DIGILAB2000 (Italy) http://www.digilab2000.it c. Softier launched our new IP STB Evaluation Kit (EVK) at CES and will be shipping it to our customers in March 2005. The EVK is a turnkey solution for service providers and integrators that are evaluating and testing IP STB technology. More details are contained in the .pdf file. If you are attending the TI Developers Conference please stop by for a demonstration. If you have a customer considering an IP STB project, they can buy a demonstration unit for US$1,000. d. einfochips, URL: http://www.einfochips.com/ Regards Jagadeesh Sankaran -----Original Message----- From: Stephen Ormston [mailto:] Sent: Thursday, February 10, 2005 10:36 AM To: Subject: RE: [c6x] Bareboard DSP I am speaking outside my area of expertise, but would the DM642 EVM, work at all for what it is you intend to do ? Regards JS Hi JS, Yes - I am using the EVMDM642 now, but I am coming to the end of my prototype stage and trying to find a low cost solution to produce larger numbers of my product. ==== This e-mail is intended solely for the addressee. It may contain private and confidential information. If you are not the intended addressee, please take no action based on it nor show a copy to anyone. Please reply to this e-mail to highlight the error. You should also be aware that all electronic mail from, to, or within Northumbria University may be the subject of a request under the Freedom of Information Act 2000 and related legislation, and therefore may be required to be disclosed to third parties. This e-mail and attachments have been scanned for viruses prior to leaving Northumbria University. Northumbria University will not be liable for any losses as a result of any viruses being passed on. | |||
| |||
|
