Take a look at the development boards available for ARM, Coldfire, Starcore
and Blackfin. I believe there are some nice reference platforms around for
modem and VoIP.
Search in Google for Blackfin and VoIP, I'm sure you will find something.
"bsder" <> wrote in message
news:...
> larwe wrote:
>> bsder wrote:
>>
>>>Can anyone tell me where can I find a network device like those ADSL
>>>modem devices without a system installed? I want to install a customized
>>>freebsd system onto this device for my own use and school research. If
>>>purchase a off-the-shell modem product with the system installed, my end
>>>product will not be competitive. If I can get a hardware device only
>>
>>
>> Jesus, this is why a taste of economics is part of an engineering
>> degree.
>>
>> The software development cost (what you call "the system") is an NRE.
>> It's amortized across millions of units, and is considered essentially
>> free. What you're paying for is the hardware.
>>
>> When you buy a DSL modem, you are _usually_ buying it through a
>> telecoms carrier who expects to make money on your monthly spend. So
>> they will actually pay for some or all of the hardware for you. The
>> shelf price is LESS than the manufacturing cost of the device, in most
>> cases.
>>
>> Furthermore, if you are stupid enough to build some kind of business
>> model around hacked modems or routers, you are going to be chasing a
>> constantly moving target. Manufacturers change their designs regularly
>> - in consumer electronics, it is RARE to find the exact same circuit
>> being sold for more than 6 months.
>>
>> You will easily find that V1.0000001 of the product you're buying has a
>> totally different chipset, utterly undocumented, and you have no way of
>> developing new software for it let alone even loading your old
>> software.
>>
> It is always OK to write new device drivers for their newly release
> hardware. In my product line I will not only develop modem/gateway
> products but other voip stuff as well. But important is to get a hardware
> that I can develop my application based upon.
>
> Sam
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