Who is working with the SAM9263?
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From: Ulf Samuelsson on 2 Apr 2007 13:37 >> If QVGA is OK, then SAM9261 will excel, due to its internal 160 kB SRAM. >> >> Since the AT91RM9200 does not have a display controller, it >> needs something outside and the FPGA will support large screens >> like SVGA/XVGA, something I doubt the PXA will handle. > > To me that makes it a poor choice when using a display. FPGAs are > very poor on power consumption and they don't come in anything > remotely like a small package. We will see what works, at least we > will get the chance to evaluate some processors on boards that don't > cost quite so much. > If you want portable, yes, FPGAs are not a good choice. If you want to have 1280 x 1024 resultion with instant reaction time, and have power to spare, then this is a good solution. If you want low power consumption and rethink about VGA in favour of QVGA solution, then you > >> > I would like to consider that. But how long will I have to wait for >> > an eval board in a reasonable price range? >> >> You can't do zilch with the DIMM module, unless you have >> a baseboard, so you will have to develop your own board. >> If you dont value time, why not start with a chip? > > Are you saying the 9263 will only be available on a DIMM? I thought > you were producing a compete eval board??? No I am talking about DIMM modules in a generic sense. You seem to believe that you can do anything useful after you buy a $399 DIMM module... You can't do anything. You cant power it up, you can't connect a serial port, you cant load linux, you can't do ANY THING... If you want to do ANY THING, with the Cogent Module you need the Cogent Baseboard which is $1100. > > Why are you focusing on the Cogent module? I am asking about *your* > eval board. > You keep saying that the Cogent Module is less expensive than a complete kit. That is comparing Apples with Pears. > > I hadn't considered the power issues of driving a larger display. > This all sounds very power intensive. Driving a VGA type display may > well use more power than the rest of the system. > You need to move 55 MBytes per second just to refresh the screen. -- Best Regards, Ulf Samuelsson This is intended to be my personal opinion which may, or may not be shared by my employer Atmel Nordic AB
From: rickman on 2 Apr 2007 14:42 On Apr 2, 1:37 pm, "Ulf Samuelsson" <u...(a)a-t-m-e-l.com> wrote: > >> If QVGA is OK, then SAM9261 will excel, due to its internal 160 kB SRAM. > > >> Since the AT91RM9200 does not have a display controller, it > >> needs something outside and the FPGA will support large screens > >> like SVGA/XVGA, something I doubt the PXA will handle. > > > To me that makes it a poor choice when using a display. FPGAs are > > very poor on power consumption and they don't come in anything > > remotely like a small package. We will see what works, at least we > > will get the chance to evaluate some processors on boards that don't > > cost quite so much. > > If you want portable, yes, FPGAs are not a good choice. > If you want to have 1280 x 1024 resultion with instant reaction time, > and have power to spare, then this is a good solution. If I am using an FPGA to get speed, I won't be using a 200 MHz part. I'll use the 500+ MHz part. > If you want low power consumption and rethink about VGA > in favour of QVGA solution, then you I will be looking at that, but I am not convinced that I can't have low power at VGA resolution. Your architecture may not support it well, but there are many ways to solve the problem. > >> > I would like to consider that. But how long will I have to wait for > >> > an eval board in a reasonable price range? > > >> You can't do zilch with the DIMM module, unless you have > >> a baseboard, so you will have to develop your own board. > >> If you dont value time, why not start with a chip? > > > Are you saying the 9263 will only be available on a DIMM? I thought > > you were producing a compete eval board??? > > No I am talking about DIMM modules in a generic sense. > You seem to believe that you can do anything useful > after you buy a $399 DIMM module... > You can't do anything. > You cant power it up, you can't connect a serial port, > you cant load linux, you can't do ANY THING... Maybe *you* can't use it, but I am sure I can hook it up without blowing $1000. > If you want to do ANY THING, with the Cogent Module > you need the Cogent Baseboard which is $1100. > > > > > Why are you focusing on the Cogent module? I am asking about *your* > > eval board. > > You keep saying that the Cogent Module is less expensive than a complete > kit. > That is comparing Apples with Pears. You were the one who brought up the Cogent modules as viable alternatives to your in-house eval boards. Yes, it is apples and oranges, but I don't need apples to make orange juice. > > I hadn't considered the power issues of driving a larger display. > > This all sounds very power intensive. Driving a VGA type display may > > well use more power than the rest of the system. > > You need to move 55 MBytes per second just to refresh the screen. Yes, it needs to move a lot of data, but the question is how far? I don't need to run that through the CPU all the time. I only need to run updates through the CPU. You suggested an FPGA, I expect there are VGA controller chips that provide a simple interface between the CPU, ram and the screen or I can select a screen with a controller on board and a good interface.
From: Ulf Samuelsson on 2 Apr 2007 15:04 >> No I am talking about DIMM modules in a generic sense. >> You seem to believe that you can do anything useful >> after you buy a $399 DIMM module... >> You can't do anything. >> You cant power it up, you can't connect a serial port, >> you cant load linux, you can't do ANY THING... > > Maybe *you* can't use it, but I am sure I can hook it up without > blowing $1000. > It is all a matter who's paying. If you are hooking up a DIMM module for fun and do not count working hours as expenditure, I am sure that you can hook up something for less than $600. � If you could do some consultancy work that earned you more than $600 in the same time as it takes you to create your own baseboard replacement, then your "low cost" solution is the more expensive one. -- Best Regards, Ulf Samuelsson This is intended to be my personal opinion which may, or may not be shared by my employer Atmel Nordic AB
From: rickman on 2 Apr 2007 22:30 On Apr 2, 3:04 pm, "Ulf Samuelsson" <u...(a)a-t-m-e-l.com> wrote: > >> No I am talking about DIMM modules in a generic sense. > >> You seem to believe that you can do anything useful > >> after you buy a $399 DIMM module... > >> You can't do anything. > >> You cant power it up, you can't connect a serial port, > >> you cant load linux, you can't do ANY THING... > > > Maybe *you* can't use it, but I am sure I can hook it up without > > blowing $1000. > > It is all a matter who's paying. > If you are hooking up a DIMM module for fun > and do not count working hours as expenditure, > I am sure that you can hook up something for less than $600. > ´ > If you could do some consultancy work that earned > you more than $600 in the same time as it takes > you to create your own baseboard replacement, > then your "low cost" solution is the more expensive one. Again, that depends on who is doing the work. Some people are better at it than others.
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