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We considered the 21161, actually have the EZ-Kit but my boss doesn't
want to tackle BGA at the moment. We're using the SPORT TDM mode to communicate between 21065Ls. Thanks for the input. At 02:08 PM 9/4/2003 +0200, Jens Michaelsen wrote: >Calculate the cost/benefit of having bus driver. >Could think of alternatively using just a serial >IF to talk to each DSP from host side. >It mostly depend on teh amount of data you >need to transfer. ADSP21161 has nice >paralell independet ports for that. >This chip makes many things much easier. > >----- Original Message ----- >From: "Mike Rosing" <> >To: "Steve Holle" <> >Cc: <> >Sent: Wednesday, September 03, 2003 8:03 PM >Subject: Re: [adsp] ADSP-21065L to Coldfire > > On Wed, 3 Sep 2003, Steve Holle wrote: > > > > > Each 21065L will have it's own SRAM and each host port will be mapped >into > > > a separate memory mapped area in the Coldfire. > > > > But data bus is common (or how else does Coldfire talk to each 21065?). > > If every dsp has it's own address and data bus, and you use a tristate > > switch to connect the Coldfire to one dsp at a time, you'd have a very > > fast system since each dsp would only have to relinquish its bus when > > the Coldfire needs to get in. > > > > A very nice toy :-) Have fun with it! > > > > Patience, persistence, truth, > > Dr. mike > > > > > > > > _____________________________________ > > Note: If you do a simple "reply" with your email client, only the author >of this message will receive your answer. You need to do a "reply all" if >you want your answer to be distributed to the entire group. > > > > _____________________________________ > > About this discussion group: > > > > To Join: Send an email to > > > > To Post: Send an email to > > > > To Leave: Send an email to > > > > Archives: http://groups.yahoo.com/group/adsp > > > > Other Groups: http://www.dsprelated.com/groups.php3 > > > > > > ">http://docs.yahoo.com/info/terms/ > > > > |
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Re: ADSP-21065L to Coldfire
Started by ●September 4, 2003
Reply by ●September 5, 20032003-09-05
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--On Thursday, September 04, 2003 8:42 AM -0600 Steve Holle <> wrote: > We considered the 21161, actually have the EZ-Kit but my boss doesn't > want to tackle BGA at the moment. We're using the SPORT TDM mode to > communicate between 21065Ls. Take a look at Danville's boards. I saw them at the last Embedded Systems show and they're a nice alternative for small volumes where you don't want to invest in your own BGA design. A very small circuit board incorporates CPU, memory, and I don't recall what else, with some .100 connectors on the bottom to connect to your own board. They'd make a good alternative to ezkits for prototyping. |
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Reply by ●September 5, 20032003-09-05
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At 06:55 PM 9/4/2003, Kenneth Porter wrote: >--On Thursday, September 04, 2003 8:42 AM -0600 Steve Holle ><> wrote: > > > We considered the 21161, actually have the EZ-Kit but my boss doesn't > > want to tackle BGA at the moment. We're using the SPORT TDM mode to > > communicate between 21065Ls. > >Take a look at Danville's boards. I saw them at the last Embedded Systems >show and they're a nice alternative for small volumes where you don't want >to invest in your own BGA design. A very small circuit board incorporates >CPU, memory, and I don't recall what else, with some .100 connectors on the >bottom to connect to your own board. They'd make a good alternative to >ezkits for prototyping. Thanks Ken for the plug, The dspblok 21161sm is the board Ken refers to. It includes SDRAM, Flash, EE Memory, JTAG and the Core Power Supply. The expansion is via 2mm connectors. We originally designed this board to incorporate into some internal projects since BGAs are expensive to use in small and moderate quantities. The module is easy to incorporate into your own custom design. Our dspstak 21161sx board is an example. This board incorporates a dspblok at its core. It provides USB, RS-232, Programmable Clocks, Power Supply, etc. This board uses a two layer pc board and took 3 days to design and layout (before software). You can get details from our web site: www.danvillesignal.com Al Clark Danville Signal Processing, Inc. -------------------------------- Purveyors of Fine DSP Hardware and other Cool Stuff Available at http://www.danvillesignal.com |
